Relaminarization of wall turbulence by high-pressure ramps at low reynolds numbers
Song K, Jovanovic J, Al-Salaymeh A, Rauh C, Delgado A (2016)
Publication Language: English
Publication Type: Journal article
Publication year: 2016
Journal
Publisher: Serbian Society of Heat Transfer Engineers
Book Volume: 20
Pages Range: 93-102
Abstract
Reverse transition from the turbulent towards the laminar flow regime was investigated experimentally by progressively increasing the pressure up to 400 MPa in a fully developed pipe flow operated with silicone oil as the working fluid. Using hot-wire anemometry, it is shown indirectly that at low Reynolds numbers a rapid increase in pressure modifies the turbulence dynamics owing to the processes which induce the effects caused by fluid compressibility in the region very close to the wall. The experimental results confirm that under such circumstances, the traditional mechanism responsible for self-maintenance of turbulence in wall-bounded flows is altered in such a way as to lead towards a state in which turbulence cannot persist any longer.
Authors with CRIS profile
Jovan Jovanovic
Lehrstuhl für Strömungsmechanik
Cornelia Rauh
Lehrstuhl für Strömungsmechanik
Antonio Delgado
Lehrstuhl für Strömungsmechanik
Additional Organisation(s)
Involved external institutions
Jordan (JO)How to cite
APA:
Song, K., Jovanovic, J., Al-Salaymeh, A., Rauh, C., & Delgado, A. (2016). Relaminarization of wall turbulence by high-pressure ramps at low reynolds numbers. Thermal Science, 20, 93-102. https://doi.org/10.2298/TSCI151015085S
MLA:
Song, Kwonyul, et al. "Relaminarization of wall turbulence by high-pressure ramps at low reynolds numbers." Thermal Science 20 (2016): 93-102.
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