AAWT with good performance not only depends on excellent flow quality and favorable acoustic performance of test section, but also embodies lower energy consumption.
性能良好的风洞不仅在试验段有着优良的流场品质和良好的声学性能，而且自身的能耗也较低。
2
Studied two conditions of acoustic signals when it was single-phase gas and two-phase flow in the pipeline from sound spectrum, acousticenergy, peak frequency and amplitude.