Here is an introduction to heat flux, including the factors influencing heat flux and how to calculate the heat flux equation.
Heat Transfer Analysis - an overview
Design tool use example: Heat Flux predicting DKR formula
Buoyancy-Driven Flow in a Square Cavity—Wolfram Language Documentation
The Basics of Steady-State Heat Transfer Analysis
What I Learned About Heatsinks Using Thermal Simulation
Internal Flow with Constant Surface Heat Flux
Heat Conduction in a Multilayer Sphere—Wolfram Language Documentation
28 What is Heat Flux?, Direction & Units
The Heat Equation in Alternate Coordinate Systems
Optimal ferrofluids for magnetic cooling devices
Simulating Conductive Heat Transfer