Effect of Hole Size on Flow Structure and Mixing Characteristic in a Multi-Hole Baffled Micro Combustor - Journal of Applied Mathematics and Physics

JAMP > Vol.5 No.1, January 2017

Effect of Hole Size on Flow Structure and Mixing Characteristic in a Multi-Hole Baffled Micro Combustor ()

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DOI: 10.4236/jamp.2017.51002 1,403 Downloads 2,629 Views

Author(s)

Won Hyun Kim, Young Su Park, Seon Myeong Park, Tae Seon Park^*

Affiliation(s)

School of Mechanical Engineering, Kyungpook National University, Daegu, Republic of Korea.

ABSTRACT

Flow structure and mixing properties by the baffle shape are numerically studied for a baffled micro combustor. The baffle shape is changed by various fuel and hole sizes. The numerical simulations based on different geometric conditions are performed by using the Reynolds Stress Model. The fuel-air mixing is greatly affected by flow recirculations. The centrally located flow recirculation has an important role for the entire mixing performance. The results show that this feature depends on the baffle configurations, and the baffle with small air holes represents efficient characters.

KEYWORDS

Micro Combustor, Baffle, Diameter Ratio, Flow Recirculation, Mixing, Secondary Flows

Share and Cite:

Kim, W. , Park, Y. , Park, S. and Park, T. (2017) Effect of Hole Size on Flow Structure and Mixing Characteristic in a Multi-Hole Baffled Micro Combustor. Journal of Applied Mathematics and Physics, 5, 7-16. doi: 10.4236/jamp.2017.51002.

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