Experimental study of the effects of isolated roughness elements on the stability and transition of a hypersonic boundary layer on a flat plate
Shicheng Liu,
Hao Dong,
Yinglei Jiang
Abstract:Surface roughness elements on hypersonic vehicles can cause early boundary layer transition, increasing wall skin friction and heat flux and affecting aircraft range and thermal protection systems. Accurate prediction of the transition caused by these roughness elements is crucial for the design of hypersonic vehicles. In this work, wind tunnel experiments on isolated roughness-induced boundary layer transition at Ma = 6 are conducted. Infrared thermography and high-frequency pressure sensors are utilized to i… Show more
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