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http://dx.doi.org/10.5293/KFMA.2005.8.5.029

Effects of Flow Settling Means on the Performance of Fan Tester  

Choi, Young-Seok (한국생산기술연구원)
Kim, Deok-Su (한양대학교 대학원, 한국생산기술연구원)
Yoon, Joon-Yong (한양대학교 기계공학부)
Publication Information
The KSFM Journal of Fluid Machinery / v.8, no.5, 2005 , pp. 29-34 More about this Journal
Abstract
In this study, the effect of flow settling means on the performance of fan tester were numerically investigated by using a computational fluid dynamics (CFD). The airflow rate was calculated from the pressure differential across a flow nozzle in the measuring plane and the flow settling means were generally installed in the chamber of the fan tester to provide proper airflow patterns ahead of the measuring plane. The predicted nozzle differential pressures with uniform inlet velocities were compared with the values of the ANSI/AMCA 210-99 to verify the performance of the commercial CFD code CFX 5.6. The influence of flow settling means on the measurement of airflow rate in a fan tester were discussed with various porosities and inlet jet velocities. The results obtained show that the proper band of porosities exist to meet the AMCA standard in a specified inlet jet velocity.
Keywords
Fan tester; Flow settling means; Nozzle; Porosity;
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