Physical meaning of negative heat flux contour
 

Subject:
what does negative #heat_flux contour on a constant temperature wall signify?

Explanation:
I am solving a #combustion problem where my hot flue gases are flowing around a constant temperature wall boundary condition of 120 deg C. The solution gives a negative heat flux contour on the constant temperature wall. Say if the contour legend ranges from -1e-2 to -1e-5.

What does it mean physically. I am guessing that the region where -1e-5 is recorded is the place where the heat flux is high. Am I right?

This problem is solved in #ansys #fluent

Thank you

#physics #heat #boundary #contour #flux #heattransfer