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Virginia Tech

1. Li, Jiahui. Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form.

Degree: MS, Ocean Engineering, 2019, Virginia Tech

The paper presents the first series of results obtained in an ongoing validation and verification study of inter-dynamic OpenFOAM solver framework on a new set of high quality experimental tests performed on a large (2.4m long) generic planing hull model (GPPH) with high deadrise (18deg), from the pre-planning (Fn∇=2.6) to fully planing (Fn∇=5.7) regimes. This test case is a good benchmark for the free surface capturing model implemented in OpenFOAM which is based on a rather simple transport equation for an additional scalar field that defines the fraction of water in each cell of the computational mesh. This model, in spite of its simplicity, seems capable of reproducing complex violent free surface flows such as that observed in planing hulls, that includes jet spray forming on the bottom and detaching from the chine of the planing hull and overturning waves off the wet chine region, with some nuances. The dependence of the flow solution on the mesh quality is presented and discussed. Practical indication of the level of uncertainty of CFD models for the prediction of the calm water hydrodynamics of the GPPH is given at the highest simulated speed using both fixed and free attitude simulation solutions. Predictions are then extended to the whole speed range, including resistance components, dynamic trim, heave, wetted chine length, and wetted keel length.The effect due to algorithms is also discussed by modifying the settings in wall functions and solvers for the improvements of future simulation. Advisors/Committee Members: Brizzolara, Stefano (committeechair), Brown, Alan J. (committee member), Paterson, Eric G. (committee member).

Subjects/Keywords: Planing Hull; GPPH; OpenFOAM; URANS

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

APA (6th Edition):

Li, J. (2019). Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/89904

Chicago Manual of Style (16th Edition):

Li, Jiahui. “Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form.” 2019. Masters Thesis, Virginia Tech. Accessed November 30, 2020. http://hdl.handle.net/10919/89904.

MLA Handbook (7th Edition):

Li, Jiahui. “Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form.” 2019. Web. 30 Nov 2020.

Vancouver:

Li J. Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form. [Internet] [Masters thesis]. Virginia Tech; 2019. [cited 2020 Nov 30]. Available from: http://hdl.handle.net/10919/89904.

Council of Science Editors:

Li J. Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form. [Masters Thesis]. Virginia Tech; 2019. Available from: http://hdl.handle.net/10919/89904

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