transient problem
 

Actually We are working in transient analysis of first stage Gas turbine Nozzle with Prostar.

I have a question in the way we want set the boundary conditions, this because we are working the input region with a table option (R=radial position of the blade lengt[mm], TEMP, DEN, V)I mean, the table contains 4 parameter R=independet variable, (TEMP,DEN,VElocity=dependent variable).

In the case of transient, I need another aditional table with a new dependent variable..the time, I want to set the boundary condition :(TEMP; DEN; VEL) depending of TIME AND RADIAL POSITION....HOW can I do THAT??

Actually I have results with boundaries depending of Radial position....But we need both independent variables (time and Radial pos.)

Another problem is a error message that appears : ERROR #211 *** INSUFFICIENT DIMENSIONS FOR THE CONDUCTIVITY ARRAY.INCREASE PARAMETER NCTMXC OR NBTMXC AND RECOMPILE. ?????I had increased this parameters in the parm.inc, but the problem still appears.....

I´d appreciate any information yuo can give me...

best regards

Alejandro Hernandez Rossette

MEXICO

Re: transient problem
 

Hi Why don´t you try with bcdefi.f user subroutine? Reagrding the parameters, you have to increase them from within prostar. Best regards Roadracer