location: Current position: Home >> Scientific Research >> Paper Publications

基于非结构化网格有限体积的LBM

Hits:

Indexed by:期刊论文

Date of Publication:2022-06-29

Journal:大连理工大学学报

Affiliation of Author(s):建设工程学部

Volume:52

Issue:6

Page Number:809-815

ISSN No.:1000-8608

Abstract:A unstructured mesh finite volume LBM is presented. Cell-vertex finite
   volume method is used to discretize the governing equations. During the
   discretization in time, there are two-time steps, pseudo-time step and
   real time step respectively, in which forward scheme is used in former
   while the second order backward scheme is used in latter. In space, an
   edge-based flux calculating algorithm is adopted and higher order TVD
   scheme is utilized to calculate the flux through control volume
   interface. A strategy of implicit iteration is used for solving discrete
   governing equations and the second order five-layer Runge-Kutta method
   is utilized for the solution of variables. The simulating results of 2D
   cylindrical-Couette flow and lid-driven cavity flow show that the
   proposed method is believed to be an effective tool for solving flow
   pattern of flow domain with irregular boundary.

Note:新增回溯数据

Pre One:基于近似模型的核主泵模型泵水力模型优化设计

Next One:多工况下离心压缩机叶片承载的流固耦合效应分析