STACK GEOMETRY EFFECTS ON FLOW PATTERN WITH PARTICLE IMAGE VELOCIMETRY (PIV)
Keywords:
Thermoacoustic, stack plates, particle image velocimetry (PIV), viscous penetration depth, reynolds numberAbstract
Thermoacoustic refrigerator system generates cooling power from acoustic energy. Acoustic waves interact with stack plates in the resonator tube of a thermoacoustic refrigerator to induce a temperature difference the significance of which depends on the solid-fluid interactions. In this paper, the flow field at the end of the stack plates was investigated using Particle Image Velocimetry (PIV). Results were obtained from three stack configurations with different plate geometry. Effects of plate thickness and separation gap were determined by comparison of the velocity profile obtained from these three configurations. The ratio of separation gaps to viscous penetration depth was also determined to see the effect of separation gaps. And for plate thickness effects, Reynolds number for each configuration was calculated.References
Carter, R. L., White, M., Steele, A. M. (1962). Private communication of Atomics International Division of North American Aviation Inc.
Herman, C., Kang, E., Wetzel, M. (1998). Expanding the Applications of Holographic Interferometry to the Quantitative Visualization of Oscillatory Thermofluid Processes Using Temperature as Tracer. Exp. Fluids. 24, 431-446.
Taylor, K. J. (1976). Absolute Measurement of Acoustic Particle Velocity. J. Acoust. Soc. Am. 59(3), 691-694.
Bailet, H., Lotton, P., Bruneau, M., Gusev. V., Valiere, J. C., Gazembel, B. (2000). Acoustic Power Flow Measurement in a Thermoacoustic Resonator by Means of Laser Doppler Anemometry (L.D.A) and Microphonic Measurement. Appl. Acoust.
(1), 1-11.
Blance-Benon, P., Besnoin, E., Knio, O. (2003). Experimental and Computational Visualization of the Flow Field in a Thermoacoustic Stack. C. R. Mecanique. 331, 17-24.
Mao, X., Marx, D., Jaworski, A. J. (2005). PIV Measurement of Coherent Structures and Turbulence Created by an Oscillating Flow at the End of a Thermoacoustic Stack.
Proceeding of the iTi conference in turbulence. 25-28 September. Bad-Zwishenahn, German.
Shi, L., Yu, Z., Jaworski, A. J., Abduljalil, A. S. (2009). Vortex Shedding at the End of Parallel-plate Thermoacoustic Stack in the Oscillatory Flow Condition. World Academy of Science, Engineering and Technology. 49.
Swift, G. W. (1988). Thermoacoustic Engines. J. Acoust. Soc. Am. 84, 1145-1179.
Berson, A., Michard, M., Blance-Benon, P. (2008). Measurement of acoustic velocity in the stack of a thermoacoustic refrigerator using particle image velocimetry. Heat Mass Transfer. 44, 1015-1023.
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