Differential pressure flow meter on square tube
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Question: Flow meters of various types are commonly used on circular pipes, and the calculations related to flow rates and differential pressures are well understood. However, I’m not familiar with the use of differential pressure flow meters on square pipes. Could you please tell me: are the selection and calculation methods for differential pressure flow meters the same for square pipes and circular pipes? What’s the difference?
When performing simulations, the flow velocity distribution curves for square tube cross-sections and circular tube cross-sections are definitely different. If the flow velocity is different, then the flow rate equation will also be different. A correction coefficient function can be added to the circular pipe flow equation to calculate the flow rate in square pipes.