Relaminar1zati0n of developing turbulent flow in a 180° curved square channel: A study based on temperature fluctuation measurements
Experimental Heat Transfer
The stabilizing effects of centrifugal forces, for slightly heated airflow in a 180° curved square channel with nearly fully developed entry flow, are studied by temperature fluctuation measurements for Reynolds numbers in the transition range. Re = 2, 000–4, 500. The relaminarization process is caused by secondary flow due to centrifugal forces. This study confirms the feasibility of using a fine thermocouple (12·7μm) to study flow transition phenomena. The results are presented in both time and frequency domains. © 1996 Taylor & Francis.
Ting, D. S.K. and Cheng, K. C.. (1996). Relaminar1zati0n of developing turbulent flow in a 180° curved square channel: A study based on temperature fluctuation measurements. Experimental Heat Transfer, 9 (3), 267-285.