INVESTIGATION OF FLOW FIELDS IN SONIC NOZZLES FOR METERING SMALL FLOW RATES

E. von Lavante, J. Allofs, H. Kaya
Abstract:
Due to their long term stability, well understood flow behaviour and very low uncertainty, standard critical flow Venturi nozzles (CFVN) are enjoying great popularity as a calibration tool and flow metering device. Their application to very small flow rates beyond the ISO 9300 Standard, however, leaves many questions unanswered. The present work aimed at detailed description of flow fields within CFVNs of diameters between 15 µm and 80 µm. The present numerical flow simulations were validated by corresponding experimental work.
Keywords:
critical flow Venturi nozzles, numerical flow simulation, micro flow rates
Download:
IMEKO-WC-2012-TC9-O6.pdf
DOI:
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Event details
Event name:
XX IMEKO World Congress
Title:

Metrology for Green Growth

Place:
Busan, REPUBLIC of KOREA
Time:
09 September 2012 - 12 September 2012