UNIFIED ENGINEERING                                                               Spring 2006

                                                                                                             Ian A. Waitz

Problem P1. (Unified Propulsion) L.O.’s A & B

Below  is a schematic of a gimbaled rocket nozzle.   Assume steady flow and no acceleration of the reference frame of the control volume.

a) Write expressions for the x- and y-components of the momentum flux at the nozzle inlet.

b) Write expressions for the x- and y-components of momentum flux at the nozzle outlet.

c) Write an expression for the x- and y-components of the net pressure force on the control volume.

d) Write expressions for the x- and y-components of the force that must be applied to control volume at the flange to hold the nozzle in place.