한국전산유체공학회:학술대회논문집

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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DES and RANS Simulations of Vortical Flows over a Slender Delta Wing on Unstructured Meshes

비정렬 격자계에서 삼각날개 주위의 와류 유동에 대한 DES 및 RANS 모사

  • 이희동 (KAIST 항공우주공학과 대학원) ;
  • 정문승 (KAIST 항공우주공학과 대학원) ;
  • 권오준 (KAIST 항공우주공학과)
  • Published : 2008.03.26
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Abstract

The unsteady vortical flow over ONERA 70-degree delta wing was simulated using RANS and DES flow solvers on hybrid unstructured meshes. A study of time accuracy is accomplished to determine the effects of time step and number of iteration in pseudo-time stepping on numerical solutions. The grid size test is also performed to demonstrate that DES can be used to capture more accurately the unsteady vortical flow features over RANS simulation.

Keywords