Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/118264
Title: Development of Immersed Boundary Methods for Isothermal and Thermal Flows
Authors: REN WEIWEI
Keywords: immersed boundary method, isothermal flows, moving boundaries, thermal flows, Dirichlet conditions, Neumann conditions
Issue Date: 5-Jun-2014
Citation: REN WEIWEI (2014-06-05). Development of Immersed Boundary Methods for Isothermal and Thermal Flows. ScholarBank@NUS Repository.
Abstract: The immersed boundary method (IBM) has enjoyed great popularity in the community of non-body-conforming method. In this thesis, a boundary condition-enforced IBM under the framework of NS solver in primitive variable form is firstly presented, where the critical issue of how to accurately evaluate body forces is addressed. For two-dimensional incompressible flows, the stream function-vorticity formulation-based NS solver is more efficient. A novel and efficient stream function-vorticity formulation-based IBM solver is then proposed. Heat transfer problems are frequently featured with complex configurations and moving boundaries. In the present thesis, the IBM is creatively extended to the heat transfer field and two novel IBMs are developed, one for thermal problems with Dirichlet conditions and the other for problems with Neumann conditions. The performances of all the developed IBM solvers are extensively studied and the obtained numerical results compare considerably well with the benchmark ones.
URI: http://scholarbank.nus.edu.sg/handle/10635/118264
Appears in Collections:Ph.D Theses (Open)

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