How to set up axial circular ventilation ducts?

In MANATEE, to define axial circular ventilation ducts, the first thing to do is to select the corresponding type : Input.Thermics.type_axial_ductr=0;    

Then one need to set several parameters : Number (Navd), Center position (Havd), Diameter (Davd). 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).

Axial circular ventilation ducts schematics
Axial circular ventilation ducts schematics

For the default machine, one can find the corresponding code to define the rotor ventilation ducts :

Input.Thermics.Navdr = [8];            
Input.Thermics.Davdr = [20e-3];             
Input.Thermics.Havdr = [140e-3];

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

Input.Thermics.type_axial_ductr=0;      

Input.Thermics.Navdr = [4,8,16];            
Input.Thermics.Davdr = [20e-3, 10e-3, 5e-3];             
Input.Thermics.Havdr = [120e-3, 160e-3, 180e-3];

Navdr, Davdr and Havdr must have the same length. Every set share the same index in each vector (set 1 is 4 ducts with Davd= 20e-3, Havd=120e-3...)

Machine with several set of axial ventilation ducts
Machine with several set of axial ventilation ducts
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