Scale separation closure and Alfven wave turbulence
Abstract
Based on the concept of scale separation between coherent response function and incoherent source for renormalized turbulence theories, a closure scheme is proposed. A model problem dealing with shear-Alfven wave turbulence is numerically solved; the solution explicitly shows expected turbulence features such as frequency shift from linear modes, band-broadening, and a power law dependence for the turbulence spectrum.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- April 1985
- Bibcode:
- 1985STIN...8535385C
- Keywords:
-
- Broadband;
- Closures;
- Energy Spectra;
- Frequency Shift;
- Linearity;
- Magnetohydrodynamic Waves;
- Plasma Heating;
- S Waves;
- Scale Effect;
- Turbulent Heat Transfer;
- Magnetohydrodynamic Shear Heating;
- Spectral Energy Distribution;
- Turbulence;
- Fluid Mechanics and Heat Transfer