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Tang Ke, Zhang Yu, Tang Wentao, Jin Tao, Zhang Xuejun. ANALYSIS OF VELOCITY ANNULAR EFFECT OF OSCILLATORY FLOW INSIDE PARALLEL PLATE CHANNEL[J]. Chinese Journal of Theoretical and Applied Mechanics, 2012, 44(2): 252-258. DOI: 10.6052/0459-1879-2012-2-20120208
Citation: Tang Ke, Zhang Yu, Tang Wentao, Jin Tao, Zhang Xuejun. ANALYSIS OF VELOCITY ANNULAR EFFECT OF OSCILLATORY FLOW INSIDE PARALLEL PLATE CHANNEL[J]. Chinese Journal of Theoretical and Applied Mechanics, 2012, 44(2): 252-258. DOI: 10.6052/0459-1879-2012-2-20120208

ANALYSIS OF VELOCITY ANNULAR EFFECT OF OSCILLATORY FLOW INSIDE PARALLEL PLATE CHANNEL

  • This study focuses on the velocity-annular-effect (VAE) of compressible oscillatory flow inside parallel plate channel. By analyzing the mechanism of VAE, we conclude that VAE, which inevitably occurs in viscous oscillatory pipe flow, is most visible at the phase when the centerline velocity reaches zero. In order to quantitatively evaluate the VAE, coefficient of velocity annular effect (CVAE) was proposed as an index parameter, based on the slope of velocity profile when the centerline velocity reaches zero. Numerical computations with the index parameter CVAE were conducted to analyze the impacts of dimensionless parameters, i.e., Valensi number Va and maximum Reynolds number Remax, on the VAE of oscillatory flow inside parallel plate channel.
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