Transition control of Mach to regular reflection induced interaction using an array of micro ramp vane-type vortex generators
Transition control of Mach to regular reflection induced interaction using an array of micro ramp vane-type vortex generators
复制标题
DOI：
10.1063/1.4932405
复制
发表时间：
2015-10
影响因子：
4.6
通讯作者：
S. Verma;M. Chidambaranathan
中科院分区：
文献类型：
--
作者：
S. Verma;M. Chidambaranathan
An experimental investigation has been conducted to favorably control/modify a Mach reflection induced interaction in a Mach 2.05 flow on a flat plate using an array of single row mechanical micro vane-type vortex generators (VGs). The objective was to study the variation in (i) control device configuration (trapezoidal and the split-trapezoidal or ramp vane-type), (ii) control device height (h/δ = 0.3, 0.5), and (iii) control location (X/δ = 9, 15 upstream of the interaction) in controlling the overall interaction. The primary aim was to investigate a control location and VG configuration which is able to effectively initiate a transition from Mach reflection to regular reflection with minimum changes to the separation characteristics for no control. While the trapezoidal configuration is seen to move the separation location upstream only slightly, the split-trapezoidal configurations result in a considerable upstream movement that is associated with significant reduction in separation shock strength. Th...
