SFE command

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  • Last Post 07 March 2019
deepu24 posted this 07 March 2019

Hi guys!

I was solving a problem of sliding block friction. Although I am getting results properly without any convection. When I created a named selection and tried to add convection using SFE command, Ansys showed an error.

Error is : " Invalid element number = 0, SFE command is ignored".

I used the following command for convection. cmsel, s, temp SFE,temp,1,CONV,1,5

Anyone has any idea about it? Please let me know.

jj77 posted this 07 March 2019

Look on the definition of sfe.

(named selection temp should be a surface) 

 

you have selected the relevant elements in cmsel,s,temp,

thus to apply the conv., you should write SFE,all,1,CONV,,5 ! Film coef.
SFE,all,1,CONV,2,60 ! Bulk temp coef. here assume to be 60

finish by allsel, all to select all elements again

so I t should be

/prep7

cmsel,s,temp

SFE,all,1,CONV,,5

SFE,all,1,CONV,2,60 ! Bulk temp coef. here assume to be 60

allsel,all

 

 

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