The invention provides a flow field aerodynamic characteristic wind tunnel test method for an aircraft head circular seam. The method comprises the following steps: constructing an equivalent scaling test model; determining the flow field aerodynamic characteristics of the equivalent scaling test model; constructing a simplified test model; determining flow field aerodynamic characteristics of the simplified test model; and determining whether the surface pressure distribution difference of the same position in the two models is within a preset range, and under the condition that the surface pressure distribution difference is within the preset range, taking the simplified test model as a test model of an aircraft head to carry out a wind tunnel test. The equivalent scaling test model of the aircraft head is constructed, the circular nozzle is used for simplifying the circular seam, the flow field aerodynamic characteristics of the two test models are analyzed, the simplified test model with the same flow field aerodynamic characteristics as the equivalent scaling test model is used for performing the wind tunnel test, and the result is used as the wind tunnel test result of the aircraft head. And the subsequent optimization process can be realized conveniently.
本公开提供了一种用于飞行器头部环缝的流场气动特性风洞试验方法。该方法包括:构建等效缩比试验模型;确定等效缩比试验模型的流场气动特性;构建简化试验模型;确定简化试验模型的流场气动特性;确定两个模型中相同位置的表面压力分布差别是否在预设范围内,在表面压力分布差别处于预设范围内的情况下,以简化试验模型作为飞行器头部的试验模型,以开展风洞试验。本公开构建飞行器头部的等效缩比试验模型,并利用圆形喷口对环缝进行简化,通过分析两种试验模型的流场气动特性,使用与等效缩比试验模型具有相同流场气动特性的简化试验模型进行风洞试验,以作为飞行器头部的风洞试验结果,便于进行后续优化流程实现。
Flow field aerodynamic characteristic wind tunnel test method for aircraft head circular seam
一种用于飞行器头部环缝的流场气动特性风洞试验方法
29.04.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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