What are velocity triangles?

pk3610
Member • Nov 2, 2012

What are velocity triangles?

i find difficulty in understanding the velocity triangles that we come across in turbo machines subject.. can any one explain what is the procedure for drawing velocity triangle??what are its uses

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anjali zendre

Member • Nov 3, 2012

bye using of velocity triangle we can easily find out effect and relation between velocity of flowing fluid on vain or runner, relative velocity(velocity which is actually responsible for striking vain/runner. and vain / runner velocity.

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anjali zendre

Member • Nov 3, 2012

bye using all this velocity we can find out force exerted on the runner and torque develop on the runner.
finally we have to find out power required/ work done per second by the jet on the vane.

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VISHNUGOPAN

Member • Nov 4, 2012

pk3610
i find difficulty in understanding the velocity triangles that we come across in turbo machines subject.. can any one explain what is the procedure for drawing velocity triangle??what are its uses
velocity triangles helps us to consider turbo machine problems in a pictorial way. By using a velocity triangles, anyone, with basic understanding of vector addition/subtraction can solve such problems....

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VISHNUGOPAN

Member • Nov 4, 2012

pk3610
i find difficulty in understanding the velocity triangles that we come across in turbo machines subject.. can any one explain what is the procedure for drawing velocity triangle??what are its uses
For a typical problem we draw an inlet velocity triangle and an outlet velocity triangle. We'll mark on it,
@ inlet ->> jet vel, vel of vane, vel pf whirl, vel of flow and angle b/w jet vel and vane vel. Relative vel of jet can be calculated from the triangle using vector calculation. Also corresponding angles could be calculated.
Similarly for outlet triangle.

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pk3610

Member • Nov 5, 2012

thank u for your reply ...i could understand better now. the basic knowledge required to understand these velocity triangles is about addition and subtraction of vectors and knowing difference between relative and absolute velocity..

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VISHNUGOPAN

Member • Nov 9, 2012

a

pk3610
thank u for your reply ...i could understand better now. the basic knowledge required to understand these velocity triangles is about addition and subtraction of vectors and knowing difference between relative and absolute velocity..
absolutely

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