BRADFORD SIMS - CHOKING PRESSURE RATIO GUIDELINES FOR SMALL CFVS |
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| Bradford W. Sims, Michael S. Carter, Charles L. Britton, Robert J. McKee, |
- Abstract:
- The ratio of maximum exit static pressure to inlet stagnation pressure that maintains sonic velocity at the throat of a Critical Flow Venturi (CFV) is referred to as the Maximum Back Pressure Ratio (MBPR). Current standards only provide MBPR equations for CFVs operated at throat Reynolds Numbers (Rent) above 200,000. This paper will provide MBPR guidelines for operating CFVs below a Rent of 200,000. Additionally this paper will examine the causes of "premature unchoking" and how diffuser geometry contributes to this effect.
- Keywords:
- sonic, CFVN, Maximum Back Pressure Ratio, MBPR, premature unchoking
- Download:
- IMEKO-TC9-2013-075.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC9
- Event name:
- FLOMEKO 2013
- Title:
16th International Flow Measurement Conference
- Place:
- Paris, FRANCE
- Time:
- 24 September 2013 - 26 September 2013