2.4m风洞大规模测压试验技术及应用

Test technique and application of large-scale pressure measurement in the 2.4m×2.4m transonic wind tunnel

在2.4m风洞中进行全模测压试验,可以充分利用该风洞尺寸大的优势,更精细地模拟试验对象的几何外形,在流场变化比较复杂的地方,可以尽可能多地布置测压点,更准确地测量部件性能和整体性能。但进行大规模的测压试验,对测量设备及测量技术将提出更高的要求。本文讨论了在2.4m风洞进行大规模测压试验需注意的关键技术问题,并提出了解决的方法及其应用效果。

When whole model is tested for measuring pressure in the 2.4m×2.4m transonic wind tunnel, we can take full advantage of the dimension of the wind tunnel,exactly measure the performances of the component part or integral of the model. The geometry of the tested object will be finely simulated. We can also arrange as many pressure taps as possible in the place where the variation of the flowfield is complicated.However,doing largescale pressure measurement experiment needs advanced measuring equipment and technique.Thus,this paper firstly discusses the key technology issues when doing large-scale pressure measurement and then presents the method of solution and application effects.