[dinesh1700]

i got this error while solving the radial turbine simulation.

ERROR #002100024 has occurred in subroutine ASS_FLX_BDINIP. |
| Message: |
| The specified flow direction on boundaries must not be tangential |
| to the boundary. However, on the boundary patch |
| |
| R1 Inlet |
| |
| a specified flow direction having an angle of 8.3 degrees |
| was found, which the solver considers as being nearly tangential. |
| Please do one of the following: |
| (1) Check your direction specification on this boundary. |
| (2) Set the 'Flow Direction Linearisation' to 'Velocity Magnitude' |
| in your boundary specification. |
| (3) Modify the solver tolerance by decreasing the expert parameter |
| 'tangential vector tolerance' below its default of 10 degrees. |
+--------------------------------------------------------------------+

i dont know which point is missing as i checked the R1 inlet many times , but got the same error every time
please help

[ghorrocks]

I don't know what you mean by "missing points" as the error message clearly states that you have defined a flow direction on a boundary which is tangential to the boundary. So you have to look at your boundary conditions where you have defined a flow direction.

[dinesh1700]

yeah actually this is the first time i am using ansys for turbine simulation, this one is solved ..
now the problem is when i tried to run the simulation using inlet condition as static frame total pressure and mass flow rate at outlet. i am getting error of high mach number.
please help in this

[ghorrocks]

Almost certainly this is related to this FAQ: https://www.cfd-online.com/Wiki/Ansy...do_about_it.3F