Anisotropic spectra of acoustic turbulence
Anisotropic spectra of acoustic turbulence
复制标题
声湍流的各向异性谱
DOI:
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发表时间:
1999
期刊:
影响因子:
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通讯作者:
A. Pomyalov
中科院分区:
文献类型:
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作者:
V. L’vov;Y. L’vov;A. Pomyalov
We found universal anizopropic spectra of acoustic turbulence with the linear dispersion law {omega}(k)=ck within the framework of generalized kinetic equation which takes into account the finite time of three-wave interactions. This anisotropic spectra can assume both scale-invariant and non-scale-invariant form. The implications for the evolution of the acoustic turbulence with nonisotropic pumping are discussed. The main result of the article is that the spectra of acoustic turbulence tend to become more isotropic. (c) 2000 The American Physical Society.