Abstract
Numerical simulations have been performed in time-developing plane mixing layers of the viscoelastic second-order fluids with pseudo-spectral method. Roll-up, pairing and merging of large eldies were examined at high Reynolds numbers and low Deborah numbers. The effect of viscoelastics on the evolution of the large coherent structure was shown by making a comparison between the second-order and Newtonian fluids at the same Reynolds numbers.
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Project supported by the National Natural Science Foundation of China (19572058)
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Zhaosheng, Y., Jianzhong, L. Numerical research on the coherent structure in the viscoelastic second-order mixing layers. Appl Math Mech 19, 717–723 (1998). https://doi.org/10.1007/BF02457746
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DOI: https://doi.org/10.1007/BF02457746