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Clemson University
1.
Wright, James Ray, III.
Static Pressure Recovery Effects of Conical Diffusers with Swirling Inlet Flow.
Degree: MS, Mechanical Engineering, 2020, Clemson University
URL: https://tigerprints.clemson.edu/all_theses/3363 
► Conical diffusers are used in hundreds of engineering applications in various industries. Some of the operating conditions that they operate under cause swirling flow…
(more)
▼ Conical diffusers are used in hundreds of engineering applications in various industries. Some of the operating conditions that they operate under cause swirling flow to enter the diffuser. It is generally well documented that the addition of swirl to the flow of a diffuser allows for greater divergence angles without wall separation, resulting in better overall performance of the diffuser and the machine it’s attached to. It is also known that as swirl strength is increased, the flow will eventually breakdown, resulting in internal flow recirculation and decreased diffuser performance. However, the relationship between the diffuser geometry and its performance at these higher swirl strengths has not been investigated in detail. This link between diffuser geometry, swirl, and performance is investigated using a hybrid RANS-LES based computational model. A series of simulations are performed with the computational model, varying the swirl strength and diffuser half angle φ. Overall, there was found to be little relationship between adjusting the diffuser geometry and diffuser performance at high swirl numbers.
Advisors/Committee Members: Dr. Richard Miller, Committee Chair, Dr. Ethan Kung, Dr. Xiangchun Xuan.
Subjects/Keywords: Mechanical Engineering
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APA (6th Edition):
Wright, James Ray, I. (2020). Static Pressure Recovery Effects of Conical Diffusers with Swirling Inlet Flow. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/3363
Chicago Manual of Style (16th Edition):
Wright, James Ray, III. “Static Pressure Recovery Effects of Conical Diffusers with Swirling Inlet Flow.” 2020. Masters Thesis, Clemson University. Accessed January 24, 2021.
https://tigerprints.clemson.edu/all_theses/3363.
MLA Handbook (7th Edition):
Wright, James Ray, III. “Static Pressure Recovery Effects of Conical Diffusers with Swirling Inlet Flow.” 2020. Web. 24 Jan 2021.
Vancouver:
Wright, James Ray I. Static Pressure Recovery Effects of Conical Diffusers with Swirling Inlet Flow. [Internet] [Masters thesis]. Clemson University; 2020. [cited 2021 Jan 24].
Available from: https://tigerprints.clemson.edu/all_theses/3363.
Council of Science Editors:
Wright, James Ray I. Static Pressure Recovery Effects of Conical Diffusers with Swirling Inlet Flow. [Masters Thesis]. Clemson University; 2020. Available from: https://tigerprints.clemson.edu/all_theses/3363
Clemson University
2.
Quinones, Matthew.
Numerical Analysis of Scramjet Cavity Flameholders at Varying Flight Mach Numbers.
Degree: MS, Mechanical Engineering, 2018, Clemson University
URL: https://tigerprints.clemson.edu/all_theses/3010
► Various types of air breathing engines are used as propulsion devices in aviation. At high flight velocities, the use of a ramjet or supersonic combustion…
(more)
▼ Various types of air breathing engines are used as propulsion devices in aviation. At high
flight velocities, the use of a ramjet or supersonic combustion ramjet (scramjet) may be
preferred due to the natural compressibility of air at high speed. A scramjet, while
similar to the ramjet, does not slow air to subsonic speeds prior to combustion, allowing
it to operate at much higher flight velocities at very high altitude. For this reason,
however, the residence time of air inside of the combustor is on the order of milliseconds,
requiring rapid mixing and ignition of the fuel to generate adequate thrust. To do this, a
flameholder is often used, which generates turbulence, shock waves, and maintains a
recirculation region through geometric effects. In this study, four geometry types
involving eighteen separate designs were chosen and analyzed using CFD software.
Isolator inlet Mach numbers of 2.2, 4, 6, 8, and 10 were selected to model varying flight
velocity, and hydrogen fuel was injected sonically at all injector locations with a single
step reaction mechanism applied for combustion. An existing square cavity model was
chosen and modified to produce slanted cavity, double cavity, and combined strut-cavity
designs. The flameholders were analyzed in a non-reacting simulation to observe their
effects on the flow field and fuel mixing efficiency. Reacting simulations were
performed for each flameholder to investigate flame stabilization capabilities, thermal
choking, stagnation pressure losses and drag generated inside of the combustor. Results
show that all designs sustain a flame during combustion at all flight Mach numbers.
However, the square cavity with a back cavity injector does this while limiting losses and
drag due to shock wave formation, thermal choking, and geometric effects in the flow.
Advisors/Committee Members: Dr. Richard Miller, Committee Chair, Dr. John Saylor, Dr. Xiangchun Xuan.
Subjects/Keywords: Flame holder; Flame stability; Ramjet; Scramjet
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APA (6th Edition):
Quinones, M. (2018). Numerical Analysis of Scramjet Cavity Flameholders at Varying Flight Mach Numbers. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/3010
Chicago Manual of Style (16th Edition):
Quinones, Matthew. “Numerical Analysis of Scramjet Cavity Flameholders at Varying Flight Mach Numbers.” 2018. Masters Thesis, Clemson University. Accessed January 24, 2021.
https://tigerprints.clemson.edu/all_theses/3010.
MLA Handbook (7th Edition):
Quinones, Matthew. “Numerical Analysis of Scramjet Cavity Flameholders at Varying Flight Mach Numbers.” 2018. Web. 24 Jan 2021.
Vancouver:
Quinones M. Numerical Analysis of Scramjet Cavity Flameholders at Varying Flight Mach Numbers. [Internet] [Masters thesis]. Clemson University; 2018. [cited 2021 Jan 24].
Available from: https://tigerprints.clemson.edu/all_theses/3010.
Council of Science Editors:
Quinones M. Numerical Analysis of Scramjet Cavity Flameholders at Varying Flight Mach Numbers. [Masters Thesis]. Clemson University; 2018. Available from: https://tigerprints.clemson.edu/all_theses/3010
Clemson University
3.
O'Donnell, Ryan.
Experimental and Analytical Techniques for Evaluating the Impact of Thermal Barrier Coatings on Low Temperature Combustion.
Degree: PhD, Automotive Engineering, 2018, Clemson University
URL: https://tigerprints.clemson.edu/all_dissertations/2200
► Homogeneous Charge Compression Ignition (HCCI), exhibits many fundamentally attractive thermodynamic characteristics. These traits, along with lean charge and low combustion temperatures, generally act to increase…
(more)
▼ Homogeneous Charge Compression Ignition (HCCI), exhibits many fundamentally attractive thermodynamic characteristics. These traits, along with lean charge and low combustion temperatures, generally act to increase thermal efficiency relative to competing spark and/or compression ignition strategies. However, HCCI's extreme sensitivity to in-cylinder thermal conditions, place limits on practical implementation. Thus, at low temperatures, combustion remains incomplete limiting cycle efficiency while increasing emissions. In contrast, the introduction of thermal barrier coatings (TBCs) to in-cylinder surfaces has been shown to fundamentally alter gas-wall interactions. The work in this dissertation explores HCCI/TBC synergies. Both experimental and analytical pathways are explored, attempting to illuminate the impact(s) of coatings on engine heat transfer and combustion metrics. Efforts to correlate TBC thermophysical properties and surface phenomena with HCCI performance and emissions are also explored. Finally, methods are proposed to evaluate the TBC-gas interaction as it relates to thermal stratification of the in-cylinder charge. The present work seeks to identify, and eventually quantify HCCI/TBC synergies. A specific research effort is developed, attempting to illuminate the impact(s) of TBCs on fundamental HCCI combustion metrics. Efforts to correlate TBC thermophysical properties and surface phenomena with HCCI performance and emissions are also proposed. Analysis is enabled through complimentary analytic and experimental pathways - which includes specialized solution methodology and experimental hardware. Combined, these tools enable a more complete qualitative assessment of thermal barrier coating's impact on engine performance and emissions metrics, heat loss at the wall, and ultimately thermal stratification of the in-cylinder temperature field.
Advisors/Committee Members: Dr. Zoran Filipi, Committee Chair, Dr. Mark Hoffman, Co-Chair, Dr. Richard Miller, Dr. Robert Prucka.
Subjects/Keywords: Combustion Efficiency; HCCI; Heat Transfer; Low Temperature Combustion; Thermal Barriers; Thermal Efficiency
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APA (6th Edition):
O'Donnell, R. (2018). Experimental and Analytical Techniques for Evaluating the Impact of Thermal Barrier Coatings on Low Temperature Combustion. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/2200
Chicago Manual of Style (16th Edition):
O'Donnell, Ryan. “Experimental and Analytical Techniques for Evaluating the Impact of Thermal Barrier Coatings on Low Temperature Combustion.” 2018. Doctoral Dissertation, Clemson University. Accessed January 24, 2021.
https://tigerprints.clemson.edu/all_dissertations/2200.
MLA Handbook (7th Edition):
O'Donnell, Ryan. “Experimental and Analytical Techniques for Evaluating the Impact of Thermal Barrier Coatings on Low Temperature Combustion.” 2018. Web. 24 Jan 2021.
Vancouver:
O'Donnell R. Experimental and Analytical Techniques for Evaluating the Impact of Thermal Barrier Coatings on Low Temperature Combustion. [Internet] [Doctoral dissertation]. Clemson University; 2018. [cited 2021 Jan 24].
Available from: https://tigerprints.clemson.edu/all_dissertations/2200.
Council of Science Editors:
O'Donnell R. Experimental and Analytical Techniques for Evaluating the Impact of Thermal Barrier Coatings on Low Temperature Combustion. [Doctoral Dissertation]. Clemson University; 2018. Available from: https://tigerprints.clemson.edu/all_dissertations/2200
4.
Hodges, Jonathan L.
A Model of the Diurnal Variation in Lake Surface Temperature.
Degree: MS, Mechanical Engineering, 2014, Clemson University
URL: https://tigerprints.clemson.edu/all_theses/2075
► Satellite measurements of water surface temperature can benefit several environmental ap-plications such as predictions of lake evaporation, meteorological forecasts, and predictions of lake overturning…
(more)
▼ Satellite measurements of water surface temperature can benefit several environmental ap-plications such as predictions of lake evaporation, meteorological forecasts, and predictions of lake overturning events, among others. However, limitations on the temporal resolution of satellite mea-surements restrict these improvements. A model of the diurnal variation in lake surface temperature could potentially increase the effective temporal resolution of satellite measurements of surface tem-perature, thereby enhancing the utility of these measurements in the above applications. Herein, a one-dimensional transient thermal model of a lake is used in combination with surface tempera-ture measurements from the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard the Aqua and Terra satellites, along with ambient atmospheric conditions from local weather stations, and bulk temperature measurements to calculate the diurnal surface temperature variation for the five major lakes in the Savannah River Basin in South Carolina: Lakes Jocassee, Keowee, Hartwell, Russell, and Thurmond. The calculated solutions are used to obtain a functional form for the diurnal surface temperature variation of these lakes. Differences in diurnal variation in surface temperature between each of these lakes are identified and potential explanations for these differences are presented.
Advisors/Committee Members: Dr. John R. Saylor, Dr. Nigel B. Kaye, Dr. Richard Miller.
Subjects/Keywords: Mechanical Engineering
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APA (6th Edition):
Hodges, J. L. (2014). A Model of the Diurnal Variation in Lake Surface Temperature. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/2075
Chicago Manual of Style (16th Edition):
Hodges, Jonathan L. “A Model of the Diurnal Variation in Lake Surface Temperature.” 2014. Masters Thesis, Clemson University. Accessed January 24, 2021.
https://tigerprints.clemson.edu/all_theses/2075.
MLA Handbook (7th Edition):
Hodges, Jonathan L. “A Model of the Diurnal Variation in Lake Surface Temperature.” 2014. Web. 24 Jan 2021.
Vancouver:
Hodges JL. A Model of the Diurnal Variation in Lake Surface Temperature. [Internet] [Masters thesis]. Clemson University; 2014. [cited 2021 Jan 24].
Available from: https://tigerprints.clemson.edu/all_theses/2075.
Council of Science Editors:
Hodges JL. A Model of the Diurnal Variation in Lake Surface Temperature. [Masters Thesis]. Clemson University; 2014. Available from: https://tigerprints.clemson.edu/all_theses/2075
5.
Grier, Benjamin.
A verification of steady state discontinuous solutions using the method of manufactured solutions for finite volume computational fluid dynamic codes.
Degree: PhD, Mechanical Engineering, 2014, Clemson University
URL: https://tigerprints.clemson.edu/all_dissertations/1381
► When applying the method of manufactured solutions (MMS) on computational fluid dynamic (CFD) software, it is traditionally a requirement that all solutions be continuous…
(more)
▼ When applying the method of manufactured solutions (MMS) on computational fluid dynamic (CFD) software, it is traditionally a requirement that all solutions be continuous on the computational domain. This stipulation is limiting for the verification and validation of CFD solutions where discontinuities are frequent. This work details the development of a discontinuous MMS method for finite volume codes. The CFD code used throughout this research is a cell centered, finite volume, 1st order, Eulerian scheme within the software AVUS (Air Vehicles Unstructured Solver) which is combined with uniform structured grids. This code is used as a representative testing platform with the convenience of accessible source code. A piecewise technique is used for defining manufactured solutions which simulate discontinuities. Since source terms which allow arbitrary solutions in continuous MMS do not exist within Riemann solvers, conditions at the shock boundary are physically constrained by the Rankine-Hugoniot jump conditions. Upwind manufactured solutions are first initialized and a regression technique is then used to solve for solutions downwind of the discontinuity. It is shown that a change in regression error of four order of magnitude has no significant effect on an order of convergence test. When applying MMS on finite volume CFD codes, determining the exact solutions and source terms when the stored value is the integrated average over the control volume is a non-trivial and frequently ignored problem. MMS with discontinuities further complicates the problem of determining these values. To obtain low error and high convergence rates, linearly and quadratically exact transformations are proposed for cells split by discontinuities. These transformations are combined with a nine point Gauss quadrature method to achieve 4th order accuracy for fully general solutions and shock shapes. To begin testing, continuous MMS is first performed to ensure a verified code. AVUS is verified for 1st order solutions but retains lower order boundary conditions when solving 2nd order. The error is verified using a second academic CFD solver but is left unchanged for shock solutions which are inherently 1st order. Constant primitive, oblique shock solutions are then used to demonstrate a solution's error dependence on grid alignment. Grid alignment is shown to play a vital role in the error surrounding a shock. Constant oblique solutions with a grid aligned shock result in no discretization error while a shock that passed through the interior of cells yields error upwards of 4% for the u-component velocity. A semi one-dimensional problem combined with a grid aligned shock is then used to demonstrate the error magnitude (< 1%) due to the cell averaging on both sides of the discontinuity. Fully generic primitives and discontinuities are then introduced and grid convergence studies yielding 1st order results typically associated with shocks are used to verify the correctness of the code. Despite high errors near the region of the shock,…
Advisors/Committee Members: Dr. Richard Figliola, Dr. Edward Alyanak, Dr. Richard Miller, Dr. Chenning Tong.
Subjects/Keywords: Method of Manufactured Solutions; MMS; Uncertainty Quantification; Validation; Verification; Mechanical Engineering
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APA (6th Edition):
Grier, B. (2014). A verification of steady state discontinuous solutions using the method of manufactured solutions for finite volume computational fluid dynamic codes. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/1381
Chicago Manual of Style (16th Edition):
Grier, Benjamin. “A verification of steady state discontinuous solutions using the method of manufactured solutions for finite volume computational fluid dynamic codes.” 2014. Doctoral Dissertation, Clemson University. Accessed January 24, 2021.
https://tigerprints.clemson.edu/all_dissertations/1381.
MLA Handbook (7th Edition):
Grier, Benjamin. “A verification of steady state discontinuous solutions using the method of manufactured solutions for finite volume computational fluid dynamic codes.” 2014. Web. 24 Jan 2021.
Vancouver:
Grier B. A verification of steady state discontinuous solutions using the method of manufactured solutions for finite volume computational fluid dynamic codes. [Internet] [Doctoral dissertation]. Clemson University; 2014. [cited 2021 Jan 24].
Available from: https://tigerprints.clemson.edu/all_dissertations/1381.
Council of Science Editors:
Grier B. A verification of steady state discontinuous solutions using the method of manufactured solutions for finite volume computational fluid dynamic codes. [Doctoral Dissertation]. Clemson University; 2014. Available from: https://tigerprints.clemson.edu/all_dissertations/1381
6.
Li, Wei.
Effects of Mean Shear and Scalar Initial Length Scale on Three-Scalar Mixing in Turbulent Coaxial Jets.
Degree: PhD, Mechanical Engineering, 2016, Clemson University
URL: https://tigerprints.clemson.edu/all_dissertations/1717
► The effects of the velocity and length scale ratios of the annular flow to the center jet on three-scalar mixing in turbulent coaxial jets are…
(more)
▼ The effects of the velocity and length scale ratios of the annular flow to the center jet on three-scalar mixing in turbulent coaxial jets are investigated. In this flow a center jet and an annular flow, consisting of acetone-doped air and ethylene respec-tively, are mixed with the co-flow air. Simultaneous planar laser-induced fluorescence and Rayleigh scattering are employed to measure the mass fractions of the acetone-doped air and ethylene. The velocity ratio alters the relative mean shear rates in the mixing layers between the center jet and the annular flow and between the annular flow and the co-flow, modifying the scalar fields through mean-flow advection, turbu-lent transport, and small-scale mixing. The length scale ratio determines the degree of separation between the center jet and the co-flow. The results show that while varying the velocity ratio can alter the mixing characteristics qualitatively, varying the annulus width only has quantitative effects. Increasing the velocity ratio and the annulus width always delays the evolution of the scalar fields. The evolution of the mean scalar profiles are dominated by the mean-flow advection, while the shape of the joint probability density function (JPDF) is largely determined by the turbulent transport and molecular diffusion. The JPDF for the higher velocity ratio cases is bimodal at some locations while it is unimodal for the lower velocity ratio cases. The diffusion velocity streamlines in scalar space representing the conditional diffusion generally converge quickly to a manifold along which they continue at a lower rate. The curvature of the manifold is significantly larger for the higher velocity ratio cases. Predicting the mixing path along the manifold as well as its dependence on the velocity and length scale ratios presents a challenging test for mixing models. The three-scalar subgrid-scale (SGS) mixing in the context of large eddy simu-lation and its dependence on the velocity and length scale ratios are also investigated. The analysis reveals two SGS mixing regimes depending on the SGS variance value of the center jet scalar. For small SGS variance the scalars are well mixed with uni-modal filtered joint density function (FJDF) and the three-scalar mixing configuration is lost. For large SGS variance, the scalars are highly segregated with bimodal FJDFs at radial locations near the peak of the mean SGS variance of the center jet scalar. Two competing factors, the SGS variance and the scalar length scale, are important for the bimodal FJDF. For the higher velocity ratio cases, the peak value of the SGS variance is higher, thereby resulting in stronger bimodality. For the lower velocity ratio cases, the wider mean SGS variance profiles and the smaller scalar length scale cause bimodal FJDFs over a wider range of physical locations. The diffusion stream-lines first converge to a manifold and continue on it toward a stagnation point. The curvature of the diffusion manifold is larger for the larger velocity ratio cases. The manifold provides a SGS mixing path for the center…
Advisors/Committee Members: Dr. Chenning Tong, Committee Chair, Dr. Richard Miller, Dr. Jay Ochterbeck, Dr. Xiangchun Xuan.
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APA ·
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APA (6th Edition):
Li, W. (2016). Effects of Mean Shear and Scalar Initial Length Scale on Three-Scalar Mixing in Turbulent Coaxial Jets. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/1717
Chicago Manual of Style (16th Edition):
Li, Wei. “Effects of Mean Shear and Scalar Initial Length Scale on Three-Scalar Mixing in Turbulent Coaxial Jets.” 2016. Doctoral Dissertation, Clemson University. Accessed January 24, 2021.
https://tigerprints.clemson.edu/all_dissertations/1717.
MLA Handbook (7th Edition):
Li, Wei. “Effects of Mean Shear and Scalar Initial Length Scale on Three-Scalar Mixing in Turbulent Coaxial Jets.” 2016. Web. 24 Jan 2021.
Vancouver:
Li W. Effects of Mean Shear and Scalar Initial Length Scale on Three-Scalar Mixing in Turbulent Coaxial Jets. [Internet] [Doctoral dissertation]. Clemson University; 2016. [cited 2021 Jan 24].
Available from: https://tigerprints.clemson.edu/all_dissertations/1717.
Council of Science Editors:
Li W. Effects of Mean Shear and Scalar Initial Length Scale on Three-Scalar Mixing in Turbulent Coaxial Jets. [Doctoral Dissertation]. Clemson University; 2016. Available from: https://tigerprints.clemson.edu/all_dissertations/1717
Clemson University
7.
Raghavan, Niranjan.
Numerical and Experimental Design of Coaxial Shallow Geothermal Energy Systems.
Degree: MS, Mechanical Engineering, 2016, Clemson University
URL: https://tigerprints.clemson.edu/all_theses/2443
► Geothermal Energy has emerged as one of the front runners in the energy race because of its performance efficiency, abundance and production competitiveness. Today, geothermal…
(more)
▼ Geothermal Energy has emerged as one of the front runners in the energy race because of its performance efficiency, abundance and production competitiveness. Today, geothermal energy is used in many regions of the world as a sustainable solution for decreasing dependence on fossil fuels and reducing health hazards. However, projects related to geothermal energy have not received their deserved recognition due to lack of computational tools associated with them and economic misconceptions related to their installation and functioning.
This research focuses on numerical and experimental system design analysis of vertical shallow geothermal energy systems. The driving force is the temperature difference between a finite depth beneath the earth and its surface stimulates continuous exchange of thermal energy from sub-surface to the surface (a geothermal gradient is set up). This heat gradient is captured by the circulating refrigerant and thus, tapping the geothermal energy from shallow depths.
Traditionally, U-bend systems, which consist of two one-inch pipes with a U-bend connector at the bottom, have been widely used in geothermal applications. Alternative systems include coaxial pipes (pipe-in-pipe) that are the main focus of this research. It has been studied that coaxial pipes have significantly higher thermal performance characteristics than U-bend pipes, with comparative production and installation costs. This makes them a viable design upgrade to the traditional piping systems. Analytical and numerical heat transfer analysis of the coaxial system is carried out with the help of ABAQUS software. It is tested by varying independent parameters such as materials, soil conditions and effect of thermal contact conductance on heat transfer characteristics. With the above information, this research aims at formulating a preliminary theoretical design setup for an experimental study to quantify and compare the heat transfer characteristics of U-bend and coaxial geothermal piping systems. Based on the simulations and experiments, the effect of parameters on the overall operating costs is studied.
Finally, with the results obtained, the economics and return on investment behind coaxial geothermal energy systems are discussed. Government policies on renewable energy are explained, highlighting the energy incentives associated with geothermal energy in the United States. The findings of this research provides a platform for further shallow geothermal energy system studies with an immense potential to revolutionize the energy industry in the future.
Advisors/Committee Members: Dr. Georges Fadel, (Committee Co-Chair), Dr. Vincent Blouin, (Committee Chair), Dr. Richard Miller.
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APA (6th Edition):
Raghavan, N. (2016). Numerical and Experimental Design of Coaxial Shallow Geothermal Energy Systems. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/2443
Chicago Manual of Style (16th Edition):
Raghavan, Niranjan. “Numerical and Experimental Design of Coaxial Shallow Geothermal Energy Systems.” 2016. Masters Thesis, Clemson University. Accessed January 24, 2021.
https://tigerprints.clemson.edu/all_theses/2443.
MLA Handbook (7th Edition):
Raghavan, Niranjan. “Numerical and Experimental Design of Coaxial Shallow Geothermal Energy Systems.” 2016. Web. 24 Jan 2021.
Vancouver:
Raghavan N. Numerical and Experimental Design of Coaxial Shallow Geothermal Energy Systems. [Internet] [Masters thesis]. Clemson University; 2016. [cited 2021 Jan 24].
Available from: https://tigerprints.clemson.edu/all_theses/2443.
Council of Science Editors:
Raghavan N. Numerical and Experimental Design of Coaxial Shallow Geothermal Energy Systems. [Masters Thesis]. Clemson University; 2016. Available from: https://tigerprints.clemson.edu/all_theses/2443
. 
Open Access Theses and Dissertations
