一种用于暂冲式亚跨超风洞亚跨流场引射开车的方法

Subsonic-transonic flow field ejection operating method for transient type subsonic-transonic-supersonic wind tunnel

Abstract

本发明涉及一种用于暂冲式亚跨超风洞亚跨流场引射开车的方法。本发明基于暂冲式风洞的结构特点,为了有效降低载荷,受超音速流场冲压引射开车方式的启发,创造了亚跨流场引射开车的方式。亚跨超风洞的结构通常都包括主调压阀系统、冲压引射器系统、增量引射器系统,与之而来的便是吹风试验有多种组合开车方式。本发明创造性地采用亚跨流场引射开车的方式,能显著降低载荷,确保亚跨吹风试验尤其是0.8~1.2这些高马赫数试验时模型和天平的安全,进而顺利地完成试验,大大拓展了风洞的试验能力。
The invention relates to a subsonic-transonic flow field ejection operating method for a transient type subsonic-transonic-supersonic wind tunnel. The method has the advantages that the subsonic-transonic flow field ejection operating manner is created on the basis of the structural features of the transient type wind tunnel to effectively lower load under the inspiration of supersonic flow field stamping ejection operation manner; the subsonic-transonic-supersonic wind tunnel usually comprises a main pressure regulating valve system, a stamping ejector system and an increment ejector system, and accordingly a blowing test has various combined operating manners; the subsonic-transonic flow field ejection operating manner is creatively used, the load can be lowered evidently, model and scale safety can be guaranteed during the subsonic-transonic blowing test and especially 0.8-1.2 high-mach-number tests, the test can be completed smoothly, and the test capacity of the wind tunnel is expanded greatly.

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