Non-linear time-dependent flow models of third grade fluids: A conditional symmetry approach
作者： Taha Aziz , F.M. Mahomed , Muhammad Ayub , D.P. Mason
DOI: 10.1016/J.IJNONLINMEC.2013.03.013
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摘要: Abstract In this communication some non-linear flow problems dealing with the unsteady of a third grade fluid in porous half-space are analyzed. A new class closed-form conditionally invariant solutions for these models constructed by using conditional or non-classical symmetry approach. All possible symmetries model equations obtained and various classically have been constructed. The valid also satisfy physically relevant initial boundary conditions.
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