Proceedings of the
International Conference on Mechanical Engineering 2009
(ICME2009) 26- 28 December 2009, Dhaka, Bangladesh
 

ICME09-FM-12

NUMERICAL SIMULATIONS OF SUPERSONIC MICRO JETS
 

A. M. M. Ashraful1, A. M. Mahabubul2, Matsuo Shigeru3, Setoguchi Toshiaki4 and K. Heuy Dong5
1Graduate School of Science & Engineering, Saga University, Saga, Japan.
2Department of Mechanical Engineering, Chittagong University of Engineering & Technology,
Chittagong, Bangladesh.
3Department of Mechanical Engineering, Saga University, Saga, Japan.
4Institute of Ocean Energy, Saga University, Saga, Japan.
5School of Mechanical Engineering, Andong National University, Andong, Korea

ABSTRACT

Supersonic microjets acquire considerable research interest from a fundamental fluid dynamics perspective in part because the combination of highly compressible flow at low-to-moderate Reynolds number is not very common, and in part due to the complex nature of the flow itself. In addition, microjets have a great variety engineering applications such as micro-propulsion, MEMS (Micro-Electro Mechanical Systems) components, microjet actuators and fine particle deposition and removal. Numerical simulations have been carried out at moderate nozzle pressure ratios and for different nozzle exit diameters to investigate and to understand in-depth of aerodynamic characteristics of supersonic microjets.
 

Keywords: Compressible, Microjets, Supersonic, Jet structure, Numerical simulation.

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