Release Time:2024-01-09  Hits:

Indexed by: Journal Article

Date of Publication: 2022-06-29

Journal: 大连理工大学学报

Institution: 建设工程学部

Volume: 52

Issue: 6

Page Number: 809-815

ISSN: 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.

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