[jzapatau]

Hi everybody, sorry to interrupt you but I am trying to simulate the high pressure discharge of nitrogen from a long tube.

In order to create a smaller mesh and also capture the physics of the underexpanded jet at the outlet of the tube I wanted to know if it was possible from ICEM ( and subsequently in Fluent ) to generate a mesh like in the picture

captura cfd.jpg

where there is a sort of connection between the "1D region" ( I call this 1D since it has only one cell in vertical direction) and the 2D region.

Thanks for your collaboration and excuse me for my ignorance!

P.D: the most importante issue is that in the connection there is mass flow conservation.