Local Reconstruction of Flux Solvers in CFD and New Development
发布时间: 2013-12-20 11:02:00
报告人 Shu Chang 教授
Department of Mechanical Engineering, National University of Singapore
主持人：李存标 教授
时间：12月20日周五中午1:00
地点：工学院1号楼210会议室
报告内容摘要：
Finite volume method is one of the most popular numerical approaches in computational fluid dynamics (CFD). It involves conservative flow variables defined at cell centres and numerical fluxes at cell interfaces. Usually, the flow variables at cell centres are defined as unknowns. Then we need to locally construct a solution from flow variables at cell centres to evaluate fluxes at cell interfaces. Currently, there are three major approaches to reconstruct the solution for evaluation of fluxes. They are based on smooth function approximation (general solver), one-dimensional Euler equation (Riemann solver), and continuous Boltzmann equation (gas-kinetic solver). This talk will give a summary on the 3 flux solvers first. Then two new flux solvers, that is, lattice Boltzmann flux solver and circular function-based gas kinetic flux solver, are presented. The proposed two new flux solvers are validated by some test examples.
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