How is the flow rate calculated in this case?
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When the pressure difference ΔP between the two tanks is constant, to complete the pressure equalization as quickly as possible, should the pipe diameter be large or small? How is flow rate calculated?
How is this flow rate calculated?
It’s difficult to determine this flow rate, as it is a unsteady-state process. You can use the average flow rate for calculation, namely U=V/T, where V represents the total volume flow rate between the high-pressure and low-pressure tanks during pressure equalization. Since the pressure changes, you can use the average pressure; T is the time taken for pressure equalization. However, it should be noted that this method results in relatively large errors. For a more accurate calculation, you can refer to the posts below – good mathematical skills are required to do this accurately. http://bbs.hcbbs.com/thread-972373-1-1.html