[Anna Tian]

Hi,

May I ask how to set up the water conductivity to be Cartesian Components instead of only one value for all the directions? I didn't find this option in 'material property'.

[hwangpo]

Originally Posted by Anna Tian

Hi,

May I ask how to set up the water conductivity to be Cartesian Components instead of only one value for all the directions? I didn't find this option in 'material property'.

use Expressions including coordinate direction.

[Anna Tian]

Originally Posted by hwangpo

use Expressions including coordinate direction.

I used:

'
THERMAL CONDUCTIVITY: Option = Orthotropic Cartesian Components
Thermal Conductivity X Component= 0.6069 [W m^-1 K^-1]
Thermal Conductivity Y Component= 0.6069 [W m^-1 K^-1]
Thermal Conductivity Z Component= 99999 [W m^-1 K^-1]
'



The error message is



'
The parameter "Option" in "/LIBRARY/MATERIALorous water/PROPERTIES/THERMAL CONDUCTIVITY" has the value "Orthotropic Cartesian Components". This does not match any of the allowed values: "Value, Kinetic Theory Model, Sutherlands Formula".
'


How to solve this problem?

[hwangpo]

maybe that is not reasonable. check it again

[Anna Tian]

Originally Posted by hwangpo

maybe that is not reasonable. check it again

The error message shows that there are only three options "Value, Kinetic Theory Model, Sutherlands Formula". There is no option for Cartesian Components.

So it comes back to my initial question. Could you tell me how to set up the water conductivity to be Cartesian Components instead of only one value for all the directions? Could you give an example in which you have achieved the Cartesian Components setting for thermal conductivity?

[keeper]

You did it right. The problem is that it is not supported by GUI. That is why you have error message. So you can suppress this message and run it without any troubles. You work in WB or in standalone? Anyway both options will results in same way. So just supress it and that´s it.

[Anna Tian]

Originally Posted by keeper

You did it right. The problem is that it is not supported by GUI. That is why you have error message. So you can suppress this message and run it without any troubles. You work in WB or in standalone? Anyway both options will results in same way. So just supress it and that´s it.

What do you mean by 'supress it'?

[JuPa]

Originally Posted by Anna Tian

What do you mean by 'supress it'?

I think he means suppress it in the expert parameters.

[keeper]

just click with the right button onthose messages in CFX Pre. I deal also with anisotropic conductivity but for solids. I do it exactly like that and it works.