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本文给出了DBM-01标模在西德宇航院3.25米×2.8米槽壁低速风洞的测力和洞壁静压测量结果。研究了主要槽参数(槽形式和开闭比)对洞壁干扰的影响,并与计算结果做了比较。文中的结论指出:槽壁对减小洞壁干扰效果明显;开槽壁不仅对减小纵向洞壁干扰有效,而且对减小横向洞壁干扰同样有效;实际的开槽效果较使用涡格法和等效均匀边界条件计算的结果小。
In this paper, the measurement results of the force and wall static pressure of DBM-01 model at 3.25 m × 2.8 m in low-speed wind tunnel with SID space are given. The influence of main slot parameters (slot shape and opening / closing ratio) on the interference of the tunnel wall was studied and compared with the calculated results. The conclusion of the paper points out that the effect of the groove wall on reducing the interference of the hole wall is obvious. The grooved wall is not only effective in reducing the interference of the longitudinal hole wall, but also effective in reducing the interference of the transverse hole wall. And the equivalent uniform boundary conditions to calculate the result is small.