NUMERICAL INVESTIGATION OF TRANSITIONAL BEHAVIOR IN CRITICAL FLOW VENTURI NOZZLES

E. von Lavante, Harun Kaya
Abstract:
The flow fields in two toroidal Venturi nozzles operating at critical conditions have been investigated using numerical flow simulation. The present study focused on the transitional effects in the boundary layer, occuring in critical flow Venturi nozzles (CFVN) with shapes that might not confirm to the ISO 9300 standard. Two intake geometries were studied, with a well-tested transition criterium being applied. The nozzles displayed in most cases delayed transition at Reynolds numbers higher than indicated in the ISO 9300 standard.
Keywords:
critical nozzles, flow metering, laminar-turbulent transition
Download:
IMEKO-WC-2015-TC9-228.pdf
DOI:
-
Event details
Event name:
XXI IMEKO World Congress
Title:

Measurement in Research and Industry

Place:
Prague, CZECH REPUBLIC
Time:
30 August 2015 - 04 September 2015
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