I can work through most thermal and fluid problems now and trust my answer. But the complex ones, where the heat and the flow tangle together in ways I can't picture, still trip me up. I stare at the equations knowing the pieces and still can't see how they fit into one whole.
More people experience this than they realize.
You can handle most thermal-fluid problems but the complex ones still trip you up.
If this sounds familiar, the Library can help you find the bigger picture.