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Why do valves cause minor losses in fluids?
I'm performing an experiment involving measuring the differential head loss across a valve when the valve is opened by different fractions. I'm wondering what exactly causes losses in pressure/ energy as the fluid passes through the valve.
2 Answers
- Mike1942fLv 75 years ago
The changing shape of the opening almost always involves turbulence at some point - so the fluid is working against itself. Some of that energy goes to vibrating and eroding the valve body and valve closure mechanism.
