Avoid chattering in Modelica.Fluid.Examples.TraceSubstances.RoomCO2Wi…

…thControls
HansOlsson · Jan 21, 2025 · caf3eb7 · caf3eb7
1 parent ff95fea
commit caf3eb7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Modelica/Fluid/Utilities.mo b/Modelica/Fluid/Utilities.mo
@@ -700,7 +700,7 @@ for a smooth transition from y1 to y2.
         eta_tilde := rho*eta;
         xi1 := x0 + mu_tilde;
         xi2 := x1 - eta_tilde;
-        if  xi1 < x0 or xi2>x1 then
+        if  xi1 < x0 or xi2>x1 or abs(xi1-xi2) < 100*Modelica.Constants.eps then
           // The limits don't make sense, just use linear interpolation
           y := (y1-y0)*(x-x0)/(x1-x0) + y0;
         else