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A fluid dynamics lab experiment illustrates flow past a mountain-shaped obstacle. Downstream wave crests radiate upwards with their group velocity pointing about 45° from horizontal. A downslope jet can be seen in the lee of the mountain, an area of lower pressure, enhanced turbulence, and periodic vertical displacement of fluid parcels.
The Mountain Wave Project (MWP) pursues global scientific research of gravity waves and associated turbulence. MWP seeks to develop new scientific insights and knowledge through high altitude and record seeking glider flights with the goal of increasing overall flight safety and improving pilot training.
Mountain wave turbulence, as the name suggests, happens when the wind hits a mountain and is forced upward off its blustery path. That's why it's common to hit some bumps when you're flying over ...
Mr Gallego Marcos explained that routes over the Andes or Alps “appear high in the ranking due to mountain wave turbulence over the Andes and Alps”, while the routes in Japan and China “are ...
Two generic types of wave turbulence should be distinguished: statistical wave turbulence (SWT) and discrete wave turbulence (DWT). In SWT theory exact and quasi-resonances are omitted, which allows using some statistical assumptions and describing the wave system by kinetic equations and their stationary solutions – the approach developed by Vladimir E. Zakharov.
The U.S. FAA lists factors of aircraft upset in the Airplane Upset Recovery Training Aid [1] [2] as follows: . Turbulence causes: . Clear air turbulence; Mountain wave turbulence ...
Wind flow over a mountain produces oscillations (A), (B) etc. Mountain waves are formed when four requirements are met. When these factors coincide with jet streams, CAT can occur: A mountain range, not an isolated mountain; Strong perpendicular wind; Wind direction maintained with altitude; Temperature inversion at the top of the mountain range
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