한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 2004년도 추계 학술대회논문집
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- Pages.47-51
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- 2004
초음속 유도탄 기저항력 예측의 불확실성
Uncertainties In Base Drag Prediction of A Supersonic Missile
초록
Accurate Prediction of a supersonic missile base drag continues to defy even well-rounded CFD codes. In an effort to address the accuracy and predictability of the base drags, the influence of grid system and competitive turbulence models on the base drag is analyzed. Characteristics of some turbulence models is reviewed through incompressible turbulent flow over a flat plate, and performance for the base drag prediction of several turbulence models such as Baldwin-Lomax(B-L), Spalart-Allmaras(S-A),