航空发动机地面试车台排气再吸入问题的数值研究  被引量:1

Numerical Study on Exhaust Re-inhalation Problem of Aero-engine Ground Test Platform

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作  者:陈志龙 羌晓青[1] 曹传军 邱添 CHEN Zhi-long;QIANG Xiao-qing;CAO Chuan-jun;QIU Tian(Shanghai Jiaotong University,Shanghai 201108,China;AECC Commercial Aircraft Engine Co.,Ltd.,Shanghai 201108,China)

机构地区:[1]上海交通大学,上海201108 [2]中国航发商发,上海201108

出  处:《价值工程》2022年第24期72-74,共3页Value Engineering

摘  要:整机地面试车台是航空发动机研制和产品交付试验的必备条件。然而,由于场地布局、当地环境的限制,试车台的设计尺寸有限,这使得在特定环境风向、风速与发动机工况下,试车台的排气气流有可能被进气塔再次吸入,这会对发动机试验造成不利的影响。本文通过气动仿真方法对试车台再吸入的现象进行了研究,量化分析了环境风向风速、发动机工况、排气塔高度等关键因素的影响,从而对新试车台设计或现有车台进行排气再吸入评估提供参考。Indoor test bed is a necessary facility for aero-engine development and product delivery.However,since the limitation of the site layout and local environment,the size design of the test bed is limited.It makes possibilities for the exhaust air flow of the test bed to be re-sucked by the inlet stack under specific environmental wind direction and engine conditions,which will adversely affect the engine test.In this paper,the phenomenon of the test bed re-sucking is studied by dynamic simulation method,and the influence of key factors such as ambient wind direction wind speed,engine working conditions,and exhaust tower height is quantitatively analyzed,so as to provide a reference for the new test bench designed the exhaust re-sucking evaluation of the existing test beds.

关 键 词:整机 试验 试车台设计 再吸入 

分 类 号:V263.4[航空宇航科学与技术—航空宇航制造工程]

 

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