INVESTIGATION OF FLOWFIELDS IN SMALL SONIC VENTURI-NOZZLES |
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| E. von Lavante, M. Ishibashi, G. Wendt |
- Abstract:
- Detailed investigation of flow fields assocciated with several sonic Venturi nozzles with small Reynolds numbers used for flow metering was carried out. The range of Reynolds numbers considered in this work extended from 4 × 103 to 4.4 × 104. In the experimental part, global parameters such as discharge coefficient Cd and local flow variables such as recovery temperature Tr were investigated independently at two different scientific institutions. Both discovered flow phenomena that were not explainable using simple linear theories. Therefore, in the numerical part of the present investigation, the corresponding flow fields were simulated using compressible viscous flow solver ACHIEVE. The qualitative agreement of the numerical and experimental results was satisfactory; the comparison enabled the authors to explain most of the physical phenomena observed.
- Keywords:
- critical nozzles, discharge coefficient, numerical simulation
- Download:
- IMEKO-TC9-2000-065.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC9
- Event name:
- FLOMEKO 2000
- Title:
- 10th Conference on Flow Measurement
- Place:
- Salvador, Bahia, BRAZIL
- Time:
- 04 June 2000 - 08 June 2000