Application of Density Corrected Spalart-Allmaras Model to Flow Past Ogive Cylinder at High Angles of Attack
Publish place: Journal of Applied Fluid Mechanics، Vol: 6، Issue: 3
Publish Year: 1392
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JAFM-6-3_008
تاریخ نمایه سازی: 5 بهمن 1400
Abstract:
Computation of flow past high speed vehicles requires the use of a reliable turbulence model. Unfortunately, most of the turbulence models are developed for incompressible flows. Application of these models directly to high speed boundary layers with large density gradients can lead to significant errors in prediction of skin friction. Several compressibility corrections have been suggested in literature to predict these turbulent flows at high Mach numbers. In the present work, we have used two such corrections for the Spalart-Allmaras turbulence model and studied their performance at high angles-of-attack. Flow past an ogive cylinder is considered for the study.
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Authors
N. Kumar
Computational & Theoretical Fluid Dynamics Division, National Aerospace Laboratories, Council of Scientific &Industrial Research, Bangalore-۵۶۰۰۱۷, India
M. T. Nair
Computational & Theoretical Fluid Dynamics Division, National Aerospace Laboratories, Council of Scientific &Industrial Research, Bangalore-۵۶۰۰۱۷, India