Numerical Simulations Of A Rectangular Channel With Symmetric And Non-Symmetric Wedge-Shaped Turbulators

Abstract

This work is an investigation of the flow field in a narrow rectangular duct with wedge turbulators applied. The Reynolds numbers studied are 10 000, 20 000, 30 000, and 40 000. Two different wedge-shaped transport promoters are studied, a symmetric and a non-symmetric wedges. Only channel configurations with wedges applied to the two opposite wide walls are included in the study. The flow fields in these channels are obtained numerically using RANS-based CFD approach. The purpose of the flow field investigation is to provide a better understanding of the mechanism of heat transport and explain the better thermal performance of channels with wedge-shaped turbulators compared to rib turbulators. Data reported includes numerical predictions of the heat transfer and friction performance of the wedge channels. Vortex trajectories are identified using the Q-criterion and Λ2.

Publication Date

1-1-2015

Publication Title

51st AIAA/SAE/ASEE Joint Propulsion Conference

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.2514/6.2015-3732

Socpus ID

85086054843 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85086054843

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