The problem of physical units

[Blackfoxdragon]

I am attempting to calculate the reactor core using the thermal hydraulics module. I realized that since Sinology prefers to use centimeters as the unit, the grid I used for the thermal hydraulics module is also in centimeters. I want to know what the units of my power density, fluid solid physical properties and various thermodynamic parameters should be in this situation?
Is it enough to just convert all the metric units to centimeters, or do I need to strictly adopt the CGS system of units?

[GiudGiud]

Hello

Sinology?? What do you mean?

You likely do not need to do solve thermal hydraulics on the same mesh as anything else. So use SI units for thermal hydraulics, and the required units for the other solves. The transfers can do the scaling between the coordinates using the Mesh/length_unit parameter