CME270H1 Lecture Notes - Lecture 12: Transport Phenomena, Exhaust Gas, V Speeds
12 Jun 2020
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Consider the momentum of a flow a cv with forces section 6 i 6. 5 acting on it that change flow. 1i material force aoeing on in cu ie actingontheflow. 1 rate of change of momentum within the cv leg if messof cv changes with time. Always o in this course flow velocity vector relative to an initial ca 0 frame rate of momentum momentum flux crossing the csis. Fcs flow speed normal to relative to cs. Note if cu is moving pres may not be ths. Consider exhaust gas leads to a force on the cv the rocket surrounding by the moving cv the. It b uexhaust 55 relativeto rocket zg stationary inertial frame of reference and cu moves with rocket the exhaustu is a ref 35. Vcs 5 isspeed not vector frame of reference and cv moves with. In this class velocity 1 density almost always constant across a 1 so the integral becomes.
