Permalink
Browse files

update acknowledgment

  • Loading branch information...
1 parent 8854e86 commit 4b2d70bb127467907f1a0d4fbd2209f83d33fb2e @thorade committed Apr 12, 2012
Showing with 31 additions and 24 deletions.
  1. +31 −24 Interfaces/PartialHelmholtzMedium/package.mo
@@ -993,6 +993,10 @@ Residual TC is also modeled by a polynominal.
At the critical point TC becomes infinite; TC is enhanced for a large region around the critical point.
The critical enhancement can be described by various alternative approaches.
Here, the simplified approach as suggested by Olchowy and Sengers is implemented.
+
+Special thanks go to Eric W. Lemmon for answering all my emails
+and programming a special version of RefProp that outputs also intermediate values.
+
</p>
<dl>
<dt>Olchowy, G.A. and Sengers, J.V</dt>
@@ -1161,34 +1165,35 @@ protected
// RefProp results are in µPa·s where µ means micro or 1E-6 but SI default is Pa·s
eta := micro*(eta_0 + eta_1 + eta_r);
- // following lines are for debugging only
- Modelica.Utilities.Streams.print("===========================================");
- Modelica.Utilities.Streams.print(" T = " + String(state.T));
- Modelica.Utilities.Streams.print(" T_star = " + String(T_star));
- Modelica.Utilities.Streams.print(" tau = " + String(tau));
- Modelica.Utilities.Streams.print(" d = " + String(state.d));
- Modelica.Utilities.Streams.print(" dm = " + String(dm));
- Modelica.Utilities.Streams.print(" delta = " + String(delta));
- Modelica.Utilities.Streams.print("delta_exp = " + String(delta_exp));
- Modelica.Utilities.Streams.print("===========================================");
- Modelica.Utilities.Streams.print(" Omega = " + String(Omega));
- Modelica.Utilities.Streams.print(" eta_0 = " + String(eta_0));
- Modelica.Utilities.Streams.print(" B_star = " + String(B_star));
- Modelica.Utilities.Streams.print(" B = " + String(B));
- Modelica.Utilities.Streams.print(" eta_1 = " + String(eta_1));
- Modelica.Utilities.Streams.print(" delta_0 = " + String(delta_0));
- Modelica.Utilities.Streams.print(" xnum = " + String(xnum) + " and xden = " + String(xden));
- Modelica.Utilities.Streams.print(" eta_r = " + String(eta_r));
- Modelica.Utilities.Streams.print(" eta_r_RP = " + String(eta_r+eta_1));
- Modelica.Utilities.Streams.print(" eta = " + String(eta));
- Modelica.Utilities.Streams.print("===========================================");
+ /* // following lines are for debugging only
+ Modelica.Utilities.Streams.print("===========================================");
+ Modelica.Utilities.Streams.print(" T = " + String(state.T));
+ Modelica.Utilities.Streams.print(" T_star = " + String(T_star));
+ Modelica.Utilities.Streams.print(" tau = " + String(tau));
+ Modelica.Utilities.Streams.print(" d = " + String(state.d));
+ Modelica.Utilities.Streams.print(" dm = " + String(dm));
+ Modelica.Utilities.Streams.print(" delta = " + String(delta));
+ Modelica.Utilities.Streams.print("delta_exp = " + String(delta_exp));
+ Modelica.Utilities.Streams.print("===========================================");
+ Modelica.Utilities.Streams.print(" Omega = " + String(Omega));
+ Modelica.Utilities.Streams.print(" eta_0 = " + String(eta_0));
+ Modelica.Utilities.Streams.print(" B_star = " + String(B_star));
+ Modelica.Utilities.Streams.print(" B = " + String(B));
+ Modelica.Utilities.Streams.print(" eta_1 = " + String(eta_1));
+ Modelica.Utilities.Streams.print(" delta_0 = " + String(delta_0));
+ Modelica.Utilities.Streams.print(" xnum = " + String(xnum) + " and xden = " + String(xden));
+ Modelica.Utilities.Streams.print(" eta_r = " + String(eta_r));
+ Modelica.Utilities.Streams.print(" eta_r_RP = " + String(eta_r+eta_1));
+ Modelica.Utilities.Streams.print(" eta = " + String(eta));
+ Modelica.Utilities.Streams.print("===========================================");
+ */
annotation (Documentation(info="<html>
<p>
-This model should return results identical to the RefProp VS1 model.
+This model is identical to the RefProp VS1 or VS2 model.
The viscosity is split into three contributions:
-zero density (ideal gas) viscosity eta_0,
+zero density (dilute gas) viscosity eta_0,
initial density contribution eta_1
and residual contribution eta_r.
@@ -1198,7 +1203,9 @@ The so called background viscosity is the sum of initial and residual viscosity.
At the critical point and a small region around the critical point, the viscosity is enhanced.
As this critical enhancement is small, it is neglected here.
-Special thanks go to Eric W. Lemmon for answering all my emails!
+Special thanks go to Eric W. Lemmon for answering all my emails
+and programming a special version of RefProp that outputs also intermediate values.
+
</p>
<dl>

0 comments on commit 4b2d70b

Please sign in to comment.