Question

Problem 2

CE 315-Quiz 4-Spring 2018 Name: Student ID #: Problem 1 (15 points) Which of the following are true (select all that apply). (a) The momentum equation is derived from a particle along a streamline (b) For Reynolds Transport Theorem the closed system is the same as the control volume (c) §VdA represents the volume flow rate crossing the control surface (d) For the analogy used in lecture of the marching band (for the Reynolds Transport Theorem), the CY marching band represents the control volume. (e) Form uniform, incompressible flow jp.dA can be simplified to ΣρνΑ Problem 2: (15 points) For unsteady flow through a nozzle which are true (select all that apply). (a) the change in mass of the control volume is always equal to zero (b) the change in momentum of the control volume is always equal to zero (c) the mass flow rate out is always equal to the mass flow rate in at a given time (d) the change in mass of the closed system is always equal to zero (e) the momentum outflow through control surface is always equal to the momentum inflow through the control surface Problem 6 (30 points) Two water jets of constant velocity (V,,A and V,, A,) collide and create a third water jet (V,, A) For this scenario simplify the general form of the continuity equation to a simplified form that is applicable to this scenario. You must show all work, and specifically state the assumption at their appropriate location S

Answer 1

Solution:-

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