Basu, AJ and Narasimha, R and Sinha, UN (1992) Direct numerical simulation of the initial evolution of a turbulent axisymmetric wake. Current Science, 63 (12). pp. 734-740.
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Abstract
The initial evolution of a turbulent axisymmetric wake at13; a macroscale Reynolds number of 1500 has been simulated by direct solution of the unsteady threedimensional Navier-Stokes equations using a (temporal) spectral scheme on the Flosolver Mk3 parallel computer at NAL A visualization of the flow is presented in terms of constant-vorticity surfaces. The simulation shows a complete sequence of events from formation of vortex rings through generation of azimuthal instability and appearance of streamwise structures to eventual breakdown into turbulent flow, and reveals explicitlycertain interesting features of the development of streamwise vorticity .
| Item Type: | Article |
|---|---|
| Additional Information: | Copyright for this article belongs to Indian Academy of Sciences |
| Uncontrolled Keywords: | Numerical simulation;Evolution of turbulent axisymmetric wake |
| Subjects: | MATHEMATICAL AND COMPUTER SCIENCES > Numerical Analysis |
| Depositing User: | Poornima Narayana |
| Date Deposited: | 17 Jul 2006 |
| Last Modified: | 24 May 2010 04:15 |
| URI: | http://nal-ir.nal.res.in/id/eprint/1993 |
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