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CHAPTER 1.docx

# CHAPTER 1.docx - CHAPTER-1 IMPACT OF FREE JETS IMPULSE...

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CHAPTER - 1. IMPACT OF FREE JETS IMPULSE – MOMENTUM PRINCIPLE The state of rest or of uniform motion of a body changes in an external applied force, and that the magnitude of force equals rate of change of momentum. The momentum is the product of change of mass and velocity of the body; this vector quantity has the direction as well as magnitude and it represents energy of motion stored in a moving body JET IMPINGEMENT UPON A STATIONARY FLAT PLATE Consider a circular fluid jet, of area ‘A’ and velocity ‘V’, that impinges onto a flat plate held perpendicular to flow direction. After striking the plate, the fluid particles change the direction, and flow parallel to the plate. Assumptions – Plate is smooth and consequently no force of friction between plate and jet. Jet moves on and off the plate with same velocity. No energy loss due to impact of jet. Uniform distribution of velocity throughout.

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Constant pressure.
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• Summer '17
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