Quote:
Originally Posted by Cd
Just as the title asks, how does heat coming from hot engine exhaust affect the cool oncoming air ?
( I'm thinking of how that air reacts in clouds when cool air meets warm air. )
From what I understand ( or don't ! ) the air creates a vortex.
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Considering that cars can be front-engine, inline, transverse, mid-engine, rear-engine; have fully-wrapped exhaust systems, fully-exposed exhaust systems, etc., you might want to choose a specific vehicle that we could think about.
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The 'meteorological ' vortex phenomena require special conditions, usually constrained by convective-available-potential-energy ( CAPE ) along the squall line ( recently 1,300-miles in length ), which limits the warm, moist, equatorial 'Gulf' air's buoyancy and ability to penetrate the cold inversion layer aloft, tapping into 33,000' - 47,000' sub-freezing temperature, high-density air, which is part of supercell dynamics, along with opposing shear winds around 10,000-feet, which create the 'couplet' which aids the ant-cyclonic circulation which will lower to the ground in a wall cloud as the vortex.
All this begins at the poles, with the polar vortex.