Numerical investigation on the flow structures in a narrow confined channel with staggered jet array arrangement

1Citations
Citations of this article
6Readers
Mendeley users who have this article in their library.

Abstract

A series of numerical analyses have been performed to investigate the flow structures in a narrow confined channel with 12 staggered circular impingement holes and one bigger exit hole. The flow enters the channel through the impingement holes and exits through the far end outlet. The flow fields corresponding to two jet Reynolds numbers (25000 and 65000) and three channel configurations with different ratios of the channel height to the impingement hole diameter (Zr = 1, 3, 5) are analyzed by solving the Reynolds averaged Navier-Stokes equations with the realizable k-ε turbulence model. Detailed flow field information including the secondary flow, the interaction between the jets and the cross flow, and flow distribution along the channel has been obtained. Comparisons between the numerical and experimental results of the flow fields at the four planes along the channel are performed to validate the numerical method. The calculated impingement pattern, high velocity flow distribution, low velocity separation region and vortices are in good agreement with the experimental data, implying the validity and effectiveness of the employed numerical approach for analyzing relevant flow field.

Cite

CITATION STYLE

APA

Liu, H., Liu, C., & Wu, W. (2015, December 1). Numerical investigation on the flow structures in a narrow confined channel with staggered jet array arrangement. Chinese Journal of Aeronautics. Chinese Journal of Aeronautics. https://doi.org/10.1016/j.cja.2015.08.017

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free