expansion fan उदाहरण वाक्य

In particular, Meyer developed the theory for how gases traveling at supersonic speed slow down abruptly through oblique shock waves, and how they accelerate smoothly through what we now call a Prandtl Meyer expansion fan . then the underlying theory appeared in Meyer's Ph . D . dissertation, hence the present terminology for the Prandtl Meyer function and the Prandtl Meyer expansion fan.