What is the purpose of Isothermal Volume and its interpretation

I would like to know more about Isothermal Volume in SimScale and how I can interprete the results. From what I know Isothermal means temperature is same, but in SimScale I am able to different shade of colour in isothermal volume. Is there any particular reason for it and how would I try to use it for thermal analysis.

I have attached a picture where air would be flowing from a top cut-out into my base while a fan at the side of the base will blow out the air. How would I interpret it?

Hi nniloy,

can you please share a link to your project, so that we can have a look at the setup of your simulation?

Best regards