An Exact Renormalization Group analysis of 3 − d Well Developed turbulence ∗
نویسنده
چکیده
We take advantage of peculiar properties of three dimensional incompressible turbulence to introduce a nonstandard Exact Renormalization Group method. A Galilean invariance preserving regularizing procedure is utilized and a field truncation is adopted to test the method. Results are encouraging: the energy spectrum E(k) in the inertial range scales with exponent −1.666±0.001 and the Kolmogorov constant CK , computed for several (realistic) shapes of the stirring force correlator, agrees with experimental data.
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ha o - dy n / 97 06 01 3 v 2 3 1 Ju l 1 99 7 An Exact Renormalization Group analysis of 3 − d Well Developed turbulence ∗
We take advantage of peculiar properties of three dimensional incompressible turbulence to introduce a nonstandard Exact Renormalization Group method. A Galilean invariance preserving regularizing procedure is utilized and a field truncation is adopted to test the method. Results are encouraging: the energy spectrum E(k) in the inertial range scales with exponent −1.666±0.001 and the Kolmogorov...
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