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I think there is an error in the documentation or code of the variable local restricion (2P) of the simscape two-phase domain.

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Whereas the documentation states that KT depends on v_in/v_out and v_out/v_R,
in the code, v_in/v_R and v_out/v_R is used:
% Specific volume restriction area ratio
v_area_ratio_in = simscape.function.limit(area_ratio*v_in /v_R, 0, 1, false);
v_area_ratio_out = simscape.function.limit(area_ratio*v_out/v_R, 0, 1, false);
% Factor for mass flow rate vs pressure drop relationship in the turbulent regime
% Based on combined momentum balance for flow area contraction between inlet and restriction
% and sudden flow area expansion between restriction and outlet
K1_tur = (1 + area_ratio)*(1 - v_area_ratio_in) - 2*area_ratio*(1 - v_area_ratio_out);
Does someone have an idea which version is correct?
Kind regards

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Yifeng Tang
Yifeng Tang el 14 de Jul. de 2022
Typo in the Documentation. Expected to be fixed in future releases and updates. THANKS for pointing it out!!

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