Numerical Investigation of Transitional Effects in Critical Venturi Nozzles |
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| E. von Lavante, B. Mickan, R. Kramer |
- Abstract:
- Several Venturi nozzles, operating at critical conditions and shaped according to the recommendations of the ISO Standard 9300 were selected for the present study. The flow in the nozzles was investigated numerically for a range of Reynolds numbers. The present results were compared with experimental data where available. The unsteady compressible viscous flow in the nozzles was simulated using the Navier-Stokes solver ACHIEVE, developed by the first author. Several models for predicting the laminar-turbulent transition were tested. Significant phenomena associated with the transition were observed, having an influence on the discharge coefficient CD.
- Download:
- IMEKO-TC9-2004-042.pdf
- DOI:
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