Fluid Flow
I know this is the wrong place to post this, well wrong forum...
However, i know there are some very clever people here and always provide accurate information. What i am doing is a refuelling assignment, starts with a third world type of setup and ends with modern. I have figured out the modern, using pumps, etc... What i can do is this way. Fuel is stored 20m above ground, and is fed via a 100m long and 125mm diameter line. Friction factor is 0.008 and the K Factors are, Tank Exit = 0.5, bend = 0.9 and Value = 1.0. Assume liquid to be water and not oil/fuel. I cant find an equation to figure this out, pretty sure there are plenty but i am feeling stupid as i cant find them. I had ago at using newtons laws to figure it out, but couldnt take into account the line length or diameter so now i am at a loss. Any help is most appreciated. Thanks |
fluid flow
You need to use the bernoulli equation with the darcy-weisbach equation for pressure loss due to friction.
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Thanks for that.
I now have 2 equations, not to sure which one is right? 0 =Vsq(2) / 2g + Z(2) + 4f L/D + K or 0 = vsq(2) / 2g + Z(2) + 4f l/d + Vsq(2) / 2g + K Vsq(2) / 2g I am trying to solve V2 for the equation I know that f = 0.008 z = 12m L = 200m g = 9.81 k = 3.3 d = 125mm I would ask this on a different forum, like a physics one or similar but cant find one thats any good, if any one can recommend one that would be great. |
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