Study 1: Mixture Properties Parameterization
Now, having built the geometry for our system, compute and plot the properties of the glycol-water coolant as defined by the Thermodynamic System.
1
In the Model Builder window, click Study 1 .
2
In the Settings window for Study, type Study 1: Mixture properties parameterization in the Label text field.
3
Locate the Study Settings section. Clear the Generate default plots checkbox.
Step 1: Stationary
Start this investigation by performing an Auxiliary sweep study, where you study the effect of varying mass fraction of ethylene, and varying coolant temperature.
1
In the Model Builder window, under Study 1: Mixture properties parameterization click Step 1: Stationary.
2
In the Settings window for Stationary, click to expand the Study Extensions section and select the Auxiliary sweep checkbox.
3
Click Add twice (button located below the table). This adds two rows to the table.
4
In the table, edit the two rows by selecting the below parameter names from the drop down menu, and enter parameter values so that the table looks like this:
Parameter name
Parameter value list
Parameter unit
w_EG (Mass fraction, ethylene glycol)
0 0.527 1
 
Tc (Coolant temperature)
range(273,10,473)
K
5
From the Sweep type list, choose All combinations.
During this first Auxiliary sweep study there is no need to solve for turbulent flow and heat transfer. Change the settings to omit solving for these interfaces.
1
Locate the Physics and Variables Selection section. In the Physics interface table, clear the Solve for checkboxes for Turbulent Flow, k-ε (spf) and Heat Transfer in Fluids (ht).
2
In the Multiphysics couplings table, clear the Solve for checkbox for Nonisothermal Flow 1 (nitf1).
The parametric solver has now been set up to compute function values for pure water, a 50 volume percent mixture of ethylene glycol and water, and pure ethylene glycol. Furthermore, the solver will compute function values for a temperature range from 273 K to 473 K.
3
In the Home toolbar (or in the Settings window for Stationary), click  Compute.