Aerodynamic Design of the Bleed Slot in a Hypersonic Quiet Nozzle
Aerodynamic Design of the Bleed Slot in a Hypersonic Quiet Nozzle作者机构：China Academy of Aerospace Aerodynamics Beijing China
出 版 物：《Journal of Applied Mathematics and Physics》 (应用数学与应用物理（英文）)
年 卷 期：2014年第2卷第6期
页 面：437-442页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：Hypersonic Quiet Nozzle Bleed Slot Boundary Layer
摘 要：The bleed slot is necessary for the requirement of the hypersonic quiet flow all over the world. The aim of the bleed slot is to decrease the influence of the disturbances from the contraction of the quiet nozzle to the boundary layer downstream of the throat, so that the boundary layer of the nozzle could be maintained as laminar flow. The main parameters of the bleed slot include the distance from lip to throat (DLT) and the width of slot (WS). Various values of those parameters will affect the performance of the slot by changing the suction intensity of the bleed slot. Two kinds of the bleed slots in the world are compared in this paper and the aerodynamic design of the bleed slots is optimized based on the Purdue-type slot. The influences of the various values of those parameters to the flow field around the throat are analyzed and the optimizing results of DLT and WS are consistent with those relative data designed for the slot of the Boeing/AFOSR Ma 6 Quiet Tunnel.
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