Effect of Homogeneous Condensation on the Interaction of Supersonic Moist Air Jets with Resonance Tube

Authors

1 Department. of Mechanical Engineering, Khulna University of Engineering & Technology, Khulna-9203, Bangladesh

2 Department of Advanced Technology Fusion, Saga University, 1, Honjo-machi, Saga-shi, Saga 840-8502, Japan

3 Institute of Ocean Energy, Saga University, 1, Honjo-machi, Saga-shi, Saga 840-8502, Japan

Abstract

The Hartmann tube, can use for flow-control, is a device which generates high intensity sound through the shock wave oscillations, are created by the interaction of the supersonic jet. In this study, two-phase flow simulations are carried out to characterize the effect of non-equilibrium condensation on the unsteady flowfield of the Hartmann resonance tube. This present numerical work provides a new insight on the flow dynamics and acoustics of the resonance tube – including the shock nature, the tube gas heating, and the effect of non-equilibrium condensation on the flow structure. A TVD numerical method is applied to the Reynolds and Favre-averaged Navier-Stokes equations, and droplet growth equation of liquid phase production. The simulations are performed over a range of nozzle pressure ratios. The numerically simulated flow structure of under-expanded supersonic jets is compared with experimental data. Moreover, the predicted frequency of end wall pressure fluctuations is compared with the experimental results.

Keywords

Journal of Applied Fluid Mechanics
Volume 6, Issue 2
April 2013
Pages 203-212

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