A MIXED ELEMENT TYPE UNSTRUCTURED GRID METHOD FOR SIMULATING 3D TURBULENT FLOWS
In this paper, a method is presented for the viscous flow simulations by solv-ing the Navier-Stokes equations on three-dimensional mixed element type unstructured grids. Pirzadehs advancing-layer method is modified to generate high quality mixed prismatic/pyramidal/ tetrahedral element type unstructured grids in boundary-layer region, and advancing-front method is used to construct isotropic tetrahedral grids in the residual flow region. Threedimensional Navier-Stokes equations are solved by using a cell-centered finite-volume method with AUSM+—up scheme and Spalart-Allmaras one-equation turbulence model. Time is advanced by an implicit Gauss-Seidel relaxation procedure which is constructed by using the first-order linearizing of flux vector and the maximal eigenvalue split-ting of flux Jacobi matrix. The assessments of the presented method are derived from the simulation of viscous flow problems around the ONERA M6 wing, DLR-F6 wingbody and DLR-F6 wing-body-pylon-nacelle configuration.
WANG GANG YE ZHENGYIN
National Key Laboratory of Aerodynamic Research and Design,Northwestern Polytechnical University, Xian, 710072, China
国际会议
The Joint Conference of ICCP6 and CCP2003(第6届国际计算伦理会议)
北京
英文
234-238
2004-05-23（万方平台首次上网日期，不代表论文的发表时间）