Hello,
I'm modeling a high pressured water supply system full of partially closed valves (which people use as some kind of "prv's" to reduce pressure because they don't have enough money to buy it).The information they gave me is D(mm) of a valve, type of the valve, pressure before and after the valve (M h2o), and how much flow goes through it after partially closing it (l/s). for instance, pressure before and after the valve is 75m, valve D=150mm, after partially closing it becomes after the valve 20m and 5 l/s goes through it.I used hc=kv2/2g equation to find headloss coefficient setting75 - 20 = k(4Q/3.14D2)2/2gk=13750
but how precise is it? how precise would it be in eps modeling?
How to model this kind of system in watergems?