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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.
Turbulence can be caused by “waves” of air, which form upon contact with mountains and which can end up hitting an aircraft “like ocean waves crashing onto a beach”, by jet streams and ...
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 ...
In fluid dynamics, turbulence or turbulent flow is fluid motion characterized by chaotic changes in pressure and flow velocity. It is in contrast to laminar flow, ...
Upon emerging from clouds, the plane encounters turbulence and collides with a mountain. The wings and tail are separated from the fuselage, which slides down a mountain slope before coming to a stop. Six passengers and one flight attendant are ejected from the plane and die. Antonio, the team captain, coordinates efforts to help the injured.
Experts agree that climate change is making turbulence more frequent and intense. Here's what to know about why and how to stay safe.
In meteorology, clear-air turbulence (CAT) is the turbulent movement of air masses in the absence of any visual clues, such as clouds, and is caused when bodies of air moving at widely different speeds meet.
Mountain waves are usually associated with the presence of high surface winds. [11] [3] In the case of Rocky Mountain Airways Flight 217, a stable air mass and high winds over the Park Range resulted in the formation of a mountain wave over the mountain range. The North Park basin also helped the development of the mountain wave, with the lower ...