Accelerating Control Volume - Fluid Momentum Example Problem
Автор: Brian Bernard
Загружено: 2024-02-07
Просмотров: 1976
Don't use the Tsiolkovsky Rocket Equation! It doesn't account for external forces like gravity or drag. You must use Fluid Momentum to solve accelerating control volume problems.
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Draw your Free Body Diagram, set it equal to your Kinetic Diagram, write your equilibrium equation, and solve. That's every momentum problem in your Fluid Mechanics course. Fluid Momentum problems are Force problems. Fluid Momentum Acceleration problems are probably the hardest type of fluid mechanics momentum problems you'll see, since they may involve calculus. But, the accelerating cv doesn't actually change how you start, only the difficulty of the math at the end.
CHAPTERS
0:00 Tsiolkovsky Rocket Equation
0:56 Free Body Diagram = Kinetic Diagram
2:29 Equilibrium Equation
4:17 Set up the Integrals
6:38 Solve the Integrals
9:56 How to check final answer
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