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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 ...
An important related theorem is the Birkhoff Transitivity Theorem. It is easy to see that the existence of a dense orbit implies topological transitivity. The Birkhoff Transitivity Theorem states that if X is a second countable , complete metric space , then topological transitivity implies the existence of a dense set of points in X that have ...
This is an important area of research in this field, and a major goal of the modern theory of turbulence is to understand what is universal in the inertial range, and how to deduce intermittency properties from the Navier-Stokes equations, i.e. from first principles.
WHAT IS TURBULENCE? Turbulence or pockets of disturbed air can have many causes, most obviously the unstable weather patterns that trigger storms, according to an industry briefing by planemaker ...
One passenger died and 30 others were injured aboard a Singapore Airlines flight that was hit by "severe turbulence," officials said Tuesday, but experts say such deaths are rare even as ...
Flight 826 was piloted by an experienced cockpit crew. The captain had around 15,000 flight hours, including 1,100 hours on the Boeing 747. The first officer had around 10,000 hours, including 1,500 hours on the Boeing 747, and the flight engineer had around 3,500 hours of flight time, including 850 hours in the Boeing 747.
Even in the most severe turbulence, fatalities are extremely rare; the most recent incident I can find was in December 1997 aboard a United Airlines flight from Tokyo to Honolulu, in which one ...
With further increase in flow rate, there is an explosion into turbulence, with many random vortices and the noise of aerodynamic sound. Schubauer and Skramstad overlooked the significance of the co-generation of transverse SH sound by the T-S waves in transition and turbulence.