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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 29, 1996 - Issue 7
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Original Articles

MODELING OF JET-GENERATED RECIRCULATING FLOWS IN A MINIATURE COMBUSTOR

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Pages 741-755 | Received 19 Oct 1995, Accepted 18 Jan 1996, Published online: 03 Apr 2007
 

Abstract

The complicated flow fields in miniature annular combustors are investigated numerically. The flow parameters studied include the jet tube length and momentum ratio of the primary jet. From the numerical results it is found that four different recirculations, namely, the primary, second, third, and dilution recirculations, might be generated in the combustor owing to the interaction between the mainstream and the lateral jets. In all cases studied, the primary recirculation can be observed, although its strength, size, and location are changed with the flow parameters. The jet tube length produces a significant effect on the recirculation flow structure in the primary zone. The increase of the momentum ratio of the primary jet results in the suppression and enhancement of the primary and second recirculations, respectively.

Additional information

Notes on contributors

Wu-Chi Ho

Address correspondence to Dr. Wu-Chi Ho, Center for Aviation and Space Technology, Industrial Technology Research Institute, Building 12, 321 Kuang Fu Road, Section 2, Hsinchu, Taiwan 30042, Republic of China.

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