fluent噪声的dpdt RMS 是神马？？

dongpo05

各位看官，请问在fluent噪声里面，display>contours>avoustics>surface dpdt RMS 的 dpdt RMS 是神马东西？

dongpo05

Ok，自己解决吧。
基本理解
help里面介绍了：
The RMS value of the static pressure time derivative ( ) is available for postprocessing only on wall surfaces, which are at the same time sources of sound, when the FW-H acoustics model is used.