Experimental investigation of the effect of nozzle shape and test section perforation on the stationary and non-stationary characteristics of flow field in the large transonic TsAGI T-128 Wind tunnel

被引：0

作者：

机构：

[1] Biryukov, V.I.

[2] Glazkov, S.A.

[3] Gorbushin, A.R.

[4] Ivanov, A.I.

[5] Semenov, A.V.

来源：

Biryukov, V.I. | 1600年 / Royal Aeronautical Society卷 / 109期

关键词：

Boundary layers - Flow measurement - Nozzles - Parameter estimation - Perturbation techniques - Pressure effects - Reynolds number - Transonic flow;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The results are presented for a cycle of experimental investigations of flow field characteristics (static pressure distribution, static pressure fluctuations, upwash, boundary-layer parameters) in the perforated test section of the transonic TsAGI T-128 Wind Tunnel. The investigations concern the effect of nozzle shape, wall open-area ratio, Mach and Reynolds numbers on the above-outlined flow characteristics. During the tests, the main Wind-tunnel drive power is measured. Optimal parameters of the nozzle shape and test section perforation are obtained to minimise acoustic perturbations in the test section and their non-uniformity in frequency, static pressure field non-uniformity, nozzle and test section drag and, accordingly, required main Wind-tunnel drive power.

引用