Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/36137
Title: Local Domain-Free Discretization Method and Its Combination with Immersed Boundary Method for Simulation of Fluid Flows
Authors: WU YANLING
Keywords: Local Domain Free Discretization, Immersed Boundary Method, Cartesian mesh method, non-conforming-mesh method, complex geometries, moving bodies
Issue Date: 30-Jul-2012
Source: WU YANLING (2012-07-30). Local Domain-Free Discretization Method and Its Combination with Immersed Boundary Method for Simulation of Fluid Flows. ScholarBank@NUS Repository.
Abstract: Two new non-conforming-mesh methods, Local Domain-Free Discretization (LDFD) method and hybrid LDFD and Immersed Boundary Method (LDFD-IBM) are proposed to solve the flow problems with complex geometries and/or moving boundaries. The concept of LDFD method is based on the mathematical fact that the solution inside the domain can be extended locally to the outside of the domain. Theoretically, LDFD method can be used to any types of mesh. If a Cartesian mesh is used, LDFD solver is a Cartesian mesh method. LDFD-IBM is a delicate combination of LDFD method and Immersed Boundary Method (IBM), and enjoys the merits of both methods. A variety of flow problems have been solved using the two methods, including incompressible and compressible flows with single or multiple bodies either in rest or in motion, with or without heat transfer. Numerical experiments show that the LDFD method and LDFD-IBM are effective tools for CFD.
URI: http://scholarbank.nus.edu.sg/handle/10635/36137
Appears in Collections:Ph.D Theses (Open)

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