Flow structure of pressure transmission tube and its influence on unsteady pressure measuring results in compressible flow

The computational fluid dynamics method is introduced to study the dynamic response of pressure transmission tubes in compressible flow. A simple theoretical model based on the flow structure was developed to reveal the physical mechanism of the tube dynamic response. According to the dominant variables in the model, the influence of Mach number, tube configuration and tube cooling was numerically studied with CFD tools. The CFD results indicate...