Description: free cross-section of the discharge opening in the discharge nozzle of the pump; Name: Outlet cross section of the pump
Description: free cross-sectional area of the orifice in the outlet connection of the pump; Name: outlet area of the pump
Description: determined through a surface, product of the sound pressure, p, and the component of the particle velocity, un, at a point on the surface in the direction normal to the surface, integrated over that surface; Name: sound power