CHARACTERISTICS OF SMALL SONIC NOZZLES

K. A Park, Y. M. Choi, H. M. Choi, T. S. Cha, B. H. Yoon

Abstract

Small sonic nozzles (throat diameter 0.28 4.48 mm) were tested in the gas flow standard system. This standard system is composed of two bell provers and 5 column piston provers, compressor, filters, and dehumidifier. The discharge coefficients of small sonic nozzles are obtained and correlated as a function of throat Reynolds numbers with 0.33 % uncertainty at a confidence level 95 %. The tested high Reynolds number was the lower limit of ISO 9300 specifications. The data are useful as data base for revision of ISO 9300.

Keywords

sonic nozzle, throat diameter, discharge coefficient

Download

IMEKO-TC9-2000-060.pdf

DOI

-

IMEKO TC

TC9 - Flow Measurement

Back to the proceedings