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Tolerate floating-point rounding in friction pressure-drop assert #4791

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Tolerate floating-point rounding in friction pressure-drop assert #4791

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4 changes: 2 additions & 2 deletions Modelica/Thermal/FluidHeatFlow/BaseClasses/SimpleFriction.mo
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Original file line number Diff line number Diff line change
Expand Up @@ -24,8 +24,8 @@ protected
initial algorithm
assert(V_flowNominal>V_flowLaminar,
"SimpleFriction: V_flowNominal has to be > V_flowLaminar!");
assert(dpNominal>=dpNomMin,
"SimpleFriction: dpNominal has to be > dpLaminar/V_flowLaminar*V_flowNominal!");
assert(dpNominal>=dpNomMin*(1 - 100*Modelica.Constants.eps),
"SimpleFriction: dpNominal has to be >= dpLaminar/V_flowLaminar*V_flowNominal!");
k:=(dpNominal - dpNomMin)/(V_flowNominal - V_flowLaminar)^2;
equation
if volumeFlow > +V_flowLaminar then
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