How to set up axial polar ventilation ducts?

Axial polar ventilation ducts schematics
Axial polar ventilation ducts schematics

In MANATEE, to define axial polar ventilation ducts, the first thing to do is to select the corresponding type :

Input.Thermics.type_axial_ductr=2;

Then one need to set several parameters : Number (Navd), Ventilation position (Havd), Height (Davd) and angular width (W1avd). As the ventilation can be added both on the rotor and on the stator, a letter is added at these names to distinguish them (’s’ for stator and ’r’ for rotor).

Machine with polar ventilation ducts
Machine with polar ventilation ducts

This configuration is generated with MANATEE by using the following set of variables for the rotor ventilation ducts:

Input.Thermics.type_axial_ductr=2;  
Input.Thermics.Navdr =[8];  
Input.Thermics.Davdr =[5e-3];
Input.Thermics.W1avdr = [0.2];  
Input.Thermics.Havdr =[72.5e-3];  

One can see that the parameters Navd, Davdr, W1avd and Havdr are vectors. This allow to define several set of ventilation ducts. The following code define 3 set of ventilation ducts:

Input.Thermics.type_axial_ductr=2;  
 
Input.Thermics.Navdr = [4,8,16];
Input.Thermics.Davdr = [5e-3,10e-3,15e-3];  
Input.Thermics.W1avdr = [5e-3,10e-3,20e-3];
Input.Thermics.Havdr = [60e-3, 70e-3, 85e-3];  

Navdr, Davdr, W1avdand Havdr must have the same length. Every set share the same index in each vector (set 1 is 4 ducts with Davd= 5e-3, Havd=60e-3...)

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