Is pipe water hammer related to pipe length?
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This post was last edited by hongri9804 on 2017-8-7 at 11:22. Hello everyone, I still haven’t figured out the issue of water hammer in pipelines. According to the formula for the pressure increase caused by water hammer, this increase depends only on the density of the liquid in the pipeline, the speed at which pressure waves propagate, and the change in flow velocity; it has nothing to do with the length of the pipeline. So, for a 10-kilometer pipeline and a 1-kilometer pipeline, if the valves are closed suddenly at the same speed, will the increase in pressure be the same? Are there any good resources that can help understand this issue? I would appreciate it if you could recommend some, thank you!
Could you please send me the formula for calculating water hammer pressure?
I think it’s the same; is it similar to the “inertia” of an object per unit mass? The magnitude of inertia depends only on mass: the greater the mass, the greater the inertia ； Small mass, low inertia.
Bro, have you solved that problem? I have this problem too
May I ask, which manual or document contains this formula?
Water hammer is only related to the flow velocity; when the flow velocity decreases by 1 meter per second, the resulting water hammer force is approximately 1 MPa. The propagation speed of water hammer force is essentially the speed of sound. The pipe length is related to the time at which primary, secondary, and multiple water hammer effects occur