TITLE:
Effect of Hole Size on Flow Structure and Mixing Characteristic in a Multi-Hole Baffled Micro Combustor
AUTHORS:
Won Hyun Kim, Young Su Park, Seon Myeong Park, Tae Seon Park
KEYWORDS:
Micro Combustor, Baffle, Diameter Ratio, Flow Recirculation, Mixing, Secondary Flows
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.5 No.1,
January
4,
2017
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.