한국전산유체공학회:학술대회논문집

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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비정렬 격자계에서 삼각날개 주위의 와류 유동에 대한 DES 및 RANS 모사

DES and RANS Simulations of Vortical Flows over a Slender Delta Wing on Unstructured Meshes

  • 이희동 (KAIST 항공우주공학과 대학원) ;
  • 정문승 (KAIST 항공우주공학과 대학원) ;
  • 권오준 (KAIST 항공우주공학과)
  • 발행 : 2008.03.26
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초록

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.

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