Athin rectangular plate having a width w and a height h is located so that it is noenal to a moving stream of fluid. assume the drag d, that the fluid exerts on the plate is a function of w and h, the fluid viscosity and density, u and p respectively, and the velocity v of the fluid approaching the plate. determine a suitable set of pi terms to study this problem experimentally

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater