press－relief是何意义

chenggui007

  在作plant－workshorp中的第一个例子，中设置了一个固定压力点，这是什么呢？去掉他结果就大变了，大侠给讲一讲吧

smile

问问PHOENICS，他是高手，他应该知道

denfy

Pressure Relief
The Pressure Relief object is used to create a fixed-pressure point, usually in an enclosed domain. It does not affect the grid - the cell whose centre is nearest the position is used as the fixed-pressure cell.
The only attributes are pressure coefficient and value. Value is the pressure to be fixed, relative to the reference pressure set in the Properties panel of the Main Menu. Coefficient fixes how closely the pressure in the domain matches the set value. A coefficient of 1000 is often found to work well.
Note: The pressure-relief object does not affect the grid. The size of the object is adjusted on exit from VR to cover the cell nearest the origin of the object

chenggui007

谢谢各位了