Which block to be used in Simulink for a component with Cv (flow Co-efficient) value in determining pressure loss of a system..???

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Karthick Soundarapandy 2019-3-13

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https://ww2.mathworks.cn/matlabcentral/answers/449840-which-block-to-be-used-in-simulink-for-a-component-with-cv-flow-co-efficient-value-in-determining

I need to calculate pressure loss of valves with known Cv placed in a circuit. Please sugggest as which block shall exactly be applied. I tried usig linear resistance block but the output seems to differ. Also I tried using flow co-efficient parameterized (TL) using interface (TL-IL) even then the output do not match with the manual calculation.