Learning Forum

[sharanvenkatesh.211me344]

Hey guys!
I have been simulating the suction and compression stroke of a 4-stroke hydrogen engine using a modified version of the geometry used in ANSYS 'siengine_gdi_tutorial'.

The modification is done to create an inlet for hydrogen at the injector location. The boundary condition given to the inlet is simple: constant pressure of 50 bar. No errors show up throughout the simulation. But for some reason, there is no flow through the hydrogen inlet. I try to change the boundary condition to 'mass flow rate, time-varying,' and it shows the error shown below, no matter how fine I make the mesh around the inlet.

I would appreciate any assistance in this regard!

[jcooper]

Hi: 

The shape of your inlet hole suggests there may only be one cell there as suggested by the error message:

Refining the mesh in this area will probably resolve the issue.

Regards,

Judy