Title

Relaminar1zati0n of developing turbulent flow in a 180° curved square channel: A study based on temperature fluctuation measurements

Document Type

Article

Publication Date

1-1-1996

Publication Title

Experimental Heat Transfer

Volume

9

Issue

3

First Page

267

Last Page

285

Abstract

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.

DOI

10.1080/08916159608946525

ISSN

08916152

E-ISSN

15210480

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