摘 要: | The unsteady flow of non-Newtonian fluid is an important problem in the industries of chemistry, polymer, food and power. For Newtonian fluid flow there are some solutions of special cases given in books but no general solution has been obtained. For non-Newtonian fluid there are solutions only for the power law fluid. In the present paper using a variational approach of Kantoroviach an unsteady flow
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