Description: Ratio of the volume of solids to the total volume of all components of the medium.; Name: Volume fraction of solid
Description: ratio of the volume of the solids to the total volume of all constituents the fluid; Name: solids volume fraction
Description: NPSH-value required for a drop of 3 % in the total head of the first stage of the pump as a standard basis for use in performance curves; Name: Net positive suction head required for a drop of 3 %