[jinuvarghese]

Hi all,

Please help me to resolve an issue that I got with the same results for two different conditions for CHT analysis in ANSYS CFX.

Initailly, i did a CHT analysis in cfx with the ambient temperature as 105C. Then i repeated the analysis with the same setup with the ambient temperature as 20C, but i ended up getting the same temperature rise exactly the same as that of first one.

My setup consists of a closed enclosure (top and bottom cover), inside it both the PCB and ICs are placed, inside air is also modeled. Cooling channel is provided on top cover, diesel at -6.11 c is flowing through it.
Mass flow rate of diesel is 0.0019Kg/s (laminar flow)
Outside temperature of top and bottom cover is set as ambient temperature.
is this is the correct way to define the operating conditions?

kindly help me resolving this.