Anisotropic high-level turbulence
β Scribed by J. Clodman
- Publisher
- John Wiley and Sons
- Year
- 1957
- Tongue
- English
- Weight
- 393 KB
- Volume
- 83
- Category
- Article
- ISSN
- 0035-9009
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β¦ Synopsis
Abstract
A study is made of several cases of highβlevel turbulence in which the intensity varied with the direction of flight of the aircraft. The direction of maximum turbulence is found to coincide fairly well with the direction of the contour lines. A theory is developed which attributes this type of turbulence to quasiβhorizontal gusts associated with strong horizontal wind shear. Gravity waves are examined as a possible alternative explanation and tentatively rejected.
π SIMILAR VOLUMES
We review some ideas about the physics of small-scale turbulent statistics, focusing on the scaling behavior of anisotropic uctuations. We present results from direct numerical simulations of three-dimensional homogeneous, anisotropically forced, turbulent systems: the Rayleigh-BΓ enard system, the
Statistical functions such as correlation functions and spectra yield length scales, each of which describes a certain aspect of the large-scale structure of turbulence. In this study not only statistics of wind fluctuations measured at the same place have been analysed but also statistics of fluct