wall_function_heat_flux_factor

Altair Forum User

Hi All,

 

please anybody tell me where to define 'wall_function_heat_flux_factor      = 1.0'

I am getting these errors

 

acuPrep: Reading SURFACE_OUTPUT( '2-12: outlet-walls2' )

acuPrep: Reading SIMPLE_BOUNDARY_CONDITION( '2-13: outlet-walls1' )

acuPrep: ***ERROR: parameter wall_function_heat_flux_factor not found; file Nidec_CFD_aerator.inp line 1121; at or before: yŽÃ

acuPrep: ***ERROR:     roughness_height                    = 0.0           # m

acuPrep: ***ERROR:     wall_function_heat_flux_factor      = 1.0

 

Regards

Ravi H

cfdguru

This option should appear under the SIMPLE_BOUNDARY_CONDITION command.  It looks like that is where you have it based on the error message.  So, it may be that you are just using the wrong version of the code.  The wall_function_heat_flux factor was introduced in V13.0, so make sure that is the version you are using.

Altair Forum User

 Thanks for your reply.

 

I am using v13.0. but in SBC i did not find 'wall_function_heat_flux factor'.

 

Regard

 

 

 

cfdguru

Could you upload your .Log file and .inp file?  That will tell us exactly what is going on.

Altair Forum User

Hi,

 

I am not able to attach files.

but i have attached snap shot for both inp & log.

<?xml version="1.0" encoding="UTF-8"?>

<?xml version="1.0" encoding="UTF-8"?>

cfdguru

What we need to see is the top of the .Log file where it tells what version of AcuPrep is running.  It should look something like this:

acuPrep:                         Date = Tue Nov 11 07:40:07 2014
acuPrep:                      Problem = channel
acuPrep:                          Run = 1
acuPrep:                     Hostname = sacandaga
acuPrep:                     Platform = Linux 3.11.10-21-desktop x86_64
acuPrep:                      Machine = linux64
acuPrep:                      Release = 13.0
acuPrep:                 Release date = Jun  6 2014
acuPrep:         Number of subdomains = 1
acuPrep:            Number of threads = 1
acuPrep:            Working directory = ACUSIM.DIR
acuPrep: ------------------------------------------------------------------
...

Altair Forum User

Thanks for your reply.

 

I am using v13.0 in local system and in cluster it is v12.0.

 

 

Regards

Ravi H

cfdguru

I think that explains it then.  If the input file was written in V13.0, it won't run in V12.0.  However, if it is written in V12.0, it will run in V13.0.