Since you're calling it physics and not fluid (or thermal, or...) dynamics, I'm assuming you want this to be dumbed down to something that could be "accurately" described by a partial differential equation in no more than about 2 variables by neglecting anything that matters? Or are you trying to do this algebraically? Your basic starting point is ill-defined.
Or you could seek to grasp, with a certain acceptance of randomness (and the inferior and dissatisfying nature of prob/stats) in localized flow. That method expects "hot" and "cold" spots based on local (and now indecipherable) topography. So you would look for the variations as possible evidence for the model rather than as proof of the Sino-Russian bullshit brigade's explanation. (Notice how whatever you do you're just trying to prove your starting point? That's why your sarcasm meter is beeping.) PM klar (and please let us know if she responds).
Or you could just ask yourself how hot gasoline-soaked tires can burn and see if the wheels closest to the gas tank survived more often or not. Which is like setting out to prove Occam right. So, still doing it wrong, but different. In any case, TR please.
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