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You searched for subject:(tidal forcing). Showing records 1 – 2 of 2 total matches.

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Delft University of Technology

1. van Sliedregt, Duncan (author). Volcanism on Io: A Comparison Between the Volcanic Distribution and Tidal Stress.

Degree: 2020, Delft University of Technology

Io is Jupiter's innermost Galilean satellite and the most volcanically active body in the Solar System. Its volcanism is driven by tidal heating generated by its interaction with Jupiter and maintained by other Galilean satellites. The tidal forces acting on Io also cause significant stresses on its interior. It is investigated if tensional stresses play a significant role in the formation of volcanic centers on Io. On a global scale, it is investigated if the locations of maximum tensile stress coincide with the locations of maximum volcanic activity. On a local scale, it is investigated if chains of Io's volcanoes follow the directions of the tensile stresses. The results on a global and local scale are shown to be consistent with the hypothesis that tensional stresses play a significant role in the formation of volcanic centers on Io. However, tensional stresses alone are insufficient for the formation of volcanic centers.

Aerospace Engineering

Advisors/Committee Members: van der Wal, Wouter (mentor), Steinke, Teresa (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Io; tidal forcing; tidal stress; volcanism; Jupiter

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

van Sliedregt, D. (. (2020). Volcanism on Io: A Comparison Between the Volcanic Distribution and Tidal Stress. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:58c4f84b-1463-4ca4-b90b-e4884ae8a890

Chicago Manual of Style (16th Edition):

van Sliedregt, Duncan (author). “Volcanism on Io: A Comparison Between the Volcanic Distribution and Tidal Stress.” 2020. Masters Thesis, Delft University of Technology. Accessed November 29, 2020. http://resolver.tudelft.nl/uuid:58c4f84b-1463-4ca4-b90b-e4884ae8a890.

MLA Handbook (7th Edition):

van Sliedregt, Duncan (author). “Volcanism on Io: A Comparison Between the Volcanic Distribution and Tidal Stress.” 2020. Web. 29 Nov 2020.

Vancouver:

van Sliedregt D(. Volcanism on Io: A Comparison Between the Volcanic Distribution and Tidal Stress. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2020 Nov 29]. Available from: http://resolver.tudelft.nl/uuid:58c4f84b-1463-4ca4-b90b-e4884ae8a890.

Council of Science Editors:

van Sliedregt D(. Volcanism on Io: A Comparison Between the Volcanic Distribution and Tidal Stress. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:58c4f84b-1463-4ca4-b90b-e4884ae8a890


Delft University of Technology

2. van Delden, Maud (author). Constructed Tidal Marshes: An analysis on how model configurations influence accretion.

Degree: 2019, Delft University of Technology

Along river banks, on the transition zone between the river and see, tidal marshes can develop. The tidal marshes accommodate multiple plant and fish species. As a result of the stressful conditions in tidal marshes, unique intertidal ecology develops. However, due to the densifying of the river banks, tidal marshes are disappearing. Restoration of tidal marshes can reintroduce the unique intertidal ecology on several locations in the estuary. To obtain restoration of tidal marshes, constructed tidal marshes come into play, which can be built at designated places along the river. However, constructed tidal marshes are not necessarily built to restore the unique tidal nature, but can also have other functions as recreation and contribution in green city area. Nevertheless, is it still unknown how constructed tidal marshes behave and what the optimal design is. Namely, a mismatch exists between the policymakers and designers on the one side and academic knowledge on the other side. To fill up this gap, accessible knowledge from the experts should be available for designers. Therefore, this research provides guidelines for designers and gains more insight into the behaviour of constructed tidal marshes. This thesis focusses on extracting general knowledge from the results of a numerical model, applied on a case study. Simulations of a numerical 1D Sobek model applied on the case study achieves the influence of model configurations on accretion. Therefore, tidal forcing, marsh design and system adjustments are divided into multiple components. The model simulations of the separate components give the influence on bed shear stress and potential sedimentation. Furthermore, executed fieldwork calibrates the model on measured flow velocities. Besides, the Manning coefficient is estimated, and cross-sections are obtained by gps measurements. The parameters are subsequently used as model input. From the simulations, it can be concluded that tidal asymmetry determines the duration of stagnant water and thus the settling of fine particles. A considerable increase in sedimentation is reached when flats are participating. However, an increasing flat area encourages ebb-dominance and can even lead to erosion. Next, when the width of the cross-section is large compared to the depth, more sedimentation is predicted. With flood-dominant bed shear stresses, a broad cross-section leads to accretion. In the case study, the presence of sand particles is not expected, as sand is deposited close to the inlet, where the bed shear stress is ebb-dominant. In contrast, silt settles throughout the system. Especially at low energetic conditions, such as bends, silt settles. As the occurring bed shear stress is mostly flood-directed, it is likely that sediment entering the system, does not leave the system anymore, and accretion of the bends is presumed. The placement of gate culverts in flood direction leads to higher accretion rates due to the longer slack duration. However, at the… Advisors/Committee Members: Luxemburg, Willem (mentor), Bogaard, Thom (mentor), van Maren, Bas (graduation committee), Mosselman, Erik (graduation committee), van Tuinen, Ebbing (mentor), Delft University of Technology (degree granting institution).

Subjects/Keywords: marsh; design; tidal marsh; accretion; sedimentation and erosion; tidal forcing; design parameters; structures; constructed

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

van Delden, M. (. (2019). Constructed Tidal Marshes: An analysis on how model configurations influence accretion. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:856ef756-c965-4c43-8f21-49cc80dd52e5

Chicago Manual of Style (16th Edition):

van Delden, Maud (author). “Constructed Tidal Marshes: An analysis on how model configurations influence accretion.” 2019. Masters Thesis, Delft University of Technology. Accessed November 29, 2020. http://resolver.tudelft.nl/uuid:856ef756-c965-4c43-8f21-49cc80dd52e5.

MLA Handbook (7th Edition):

van Delden, Maud (author). “Constructed Tidal Marshes: An analysis on how model configurations influence accretion.” 2019. Web. 29 Nov 2020.

Vancouver:

van Delden M(. Constructed Tidal Marshes: An analysis on how model configurations influence accretion. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2020 Nov 29]. Available from: http://resolver.tudelft.nl/uuid:856ef756-c965-4c43-8f21-49cc80dd52e5.

Council of Science Editors:

van Delden M(. Constructed Tidal Marshes: An analysis on how model configurations influence accretion. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:856ef756-c965-4c43-8f21-49cc80dd52e5

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