Abstract
The fractional calculus approach in the constitutive relationship model of viscoelastic fluid was introduced. The velocity and temperature fields of the vortex flow of a generalized second fluid with fractional derivative model were described by fractional partial differential equations. Exact analytical solutions of these differential equations were obtained by using the discrete Laplace transform of the sequential fractional derivatives and generalized Mittag-Leffler function. The influence of fractional coefficient on the decay of vortex velocity and diffusion of temperature was also analyzed.
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Communicated by Wu Wang-yi, Original Member of Editorial Committee, AMM
Foundation items: the Society Promotion Science Foundation of Japan (P02325); the National Natural Science Foundation of China (10372007)
Biographies: Shen Fang (1977∼)
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Fang, S., Wen-chang, T., Yao-hua, Z. et al. Decay of vortex velocity and diffusion of temperature in a generalized second grade fluid. Appl Math Mech 25, 1151–1159 (2004). https://doi.org/10.1007/BF02439867
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DOI: https://doi.org/10.1007/BF02439867
Key words
- generalized second grade fluid
- fractional calculus
- unsteady flow
- temperature field
- generalized Mittag-Leffler function