引射式跨声速风洞流场控制软件设计

Design of Flow Field Control Software for Ejecting Transonic Wind Tunnel

摘要:

目前提出的引射式跨声速风洞流场控制软件抽气端压力过大，导致排气阀气流排气速度变化过于剧烈。设计了一种新的引射式跨声速风洞流场控制软件，在风洞的控制程序中引入了马赫数和雷诺数，对控制质量进行试验检测，以实现风洞系统能够达到更精准快速的控制水平；在风洞流场控制系统中引入了解耦系统，对风洞测试各部分参数进行解耦筛选，提高各参数的准确度，有利于控制系统实现精准控制。实验结果表明，设计的引射式跨声速风洞流场控制软件能有效降低引射式跨声速风洞流场控制软件抽气端压力，使排气阀气流排气速度处于稳定状态。

Abstract:

The flow field control software of the currently proposed transonic wind tunnel has too much pressure on the suction side, which leads to excessive changes in the exhaust velocity of the exhaust valve. A new flow field control software for ejecting transonic wind tunnels is designed, Mach number and Reynolds number are introduced into the wind tunnel control program, and the control quality is tested and tested to realize the wind tunnel system can achieve more accurate and rapid Introduce a decoupling system into the wind tunnel flow field control system to decouple and screen each part of the wind tunnel test parameters, improve the accuracy of each parameter, and help the control system to achieve precise control. The experimental results show that the designed flow field control software of the ejected transonic wind tunnel can effectively reduce the pressure at the exhaust end of the flow field control software of the ejected transonic wind tunnel, so that the air exhaust velocity of the exhaust valve is in a stable state.