热科学学报（英文版）2006，Vol.15Issue(3)：206-212,7.
Optimization of Mass Bleed Control for Base Drag Reduction of Supersonic Flight Bodies
Optimization of Mass Bleed Control for Base Drag Reduction of Supersonic Flight Bodies
Y.-K.Lee 1H.-D.Kim1
作者信息
- 1. School of Mechanical Engineering, Andong National University, 388 Songcheon-dong, Andong, 760-749, Korea
- 折叠
摘要
Abstract
The minimization of base drag using mass bleed control is examined in consideration of various base to orifice exit area ratios for a body of revolution in the Mach 2.47 freestream. Axisymmtric, compressible, mass-averaged Navier-Stokes equations are solved using the standard k-ω turbulence model, a fully implicit finite volume scheme, and a second order upwind scheme. Base flow characteristics are explained regarding the base configuration as well as the injection parameter which is defined as the mass flow rate of bleed jet non-dimensionalized by the product of the base area and freestream mass flux. The results obtained through the present study show that for a smaller base area, the optimum mass bleed condition leading to minimum base drag occurs at relatively larger mass bleed, and a larger orifice exit can offer better drag control.关键词
base drag/mass bleed/drag reduction/separation/supersonic flowKey words
base drag/mass bleed/drag reduction/separation/supersonic flow分类
数理科学引用本文复制引用
Y.-K.Lee,H.-D.Kim..Optimization of Mass Bleed Control for Base Drag Reduction of Supersonic Flight Bodies[J].热科学学报（英文版）,2006,15(3):206-212,7.
