As time progresses and fuel prices increase, you might have noticed some changes to the tractor trailers you see on the highway. Fairings on tractors have been common for quite a while; however, side skirts and extended "tails" on the trailers are relatively new additions.
To satisfy my curiosity on the effectiveness of these devices, I've performed a virtual experiment using Flow Simulation. Watch the quick video below to see the results of the test.
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