释义 |
hydrodynamic pressure hydrodynamic pressure[‚hī·drō·dī′nam·ik ′presh·ər] (fluid mechanics) The difference between the pressure of a fluid and the hydrostatic pressure; this concept is useful chiefly in problems of the steady flow of an incompressible fluid in which the hydrostatic pressure is constant for a given elevation (as when the fluid is bounded above by a rigid plate), so that the external force field (gravity) may be eliminated from the problem. |