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The classic problem of mixed convection flow within an inclined square lid-driven cavity is extended to hybrid nanofluid case. The governed partial differential equations with non-homogeneous boundary conditions are studied by means of our proposed Coiflet wavelet-homotopy method. Highly accurate solutions with very clear vortex structures are obtained. The effectiveness and efficiency of these solutions are strictly checked through a series of comparisons with published ones in literature. Results show that our proposed approach holds both strong nonlinear processing capability and excellent local display characteristics so that it can be used to attack complicated nonlinear problems more efficiently and accurately than the traditional homotopy analysis method and the Coiflet wavelet analysis approach. Besides, physical properties of hybrid nanofluid behaviors are examined, it is noticed that, similar to nanofluids, the hybrid nanofluid is superior to traditional heat transfer fluids for heat transfer enhancement but it could be easier and cheaper. [ABSTRACT FROM AUTHOR]

The mixed convection flow of a hybrid nanofluid in an inclined channel with top wall-slip due to wall stripe and constant heat flux conditions is studied. Explicit analytical solutions are given to the flow velocity, temperature, as well as the pressure in non-dimensional forms. The flow regime domain, the velocity and temperature distributions, and the dependence of various physical parameters such as the hybrid nanoparticle volume fractions, the wall-slip, the Grashof number, the Reynolds number, and the inclined angle are analyzed and discussed. It is found that the hybrid nanofluid delays the appearance of flow reversal on both walls and the wall-slip postpones the flow reversal on the top wall. [ABSTRACT FROM AUTHOR]

The unsteady mixed convection of a hybrid nanofluid due to rotating disks is examined. The generialzied homogenous flow model that describes hybrid nanofluids containing multiple kinds of nanoparticles is developed for modelling the problem. Its simplified form is proposed based on the linear assumptions and verified by existing model. The argument that the corresponding nanofluid results by the homogenous model can be restored from those solutions of already solved regular problems via simple arithmetic operations is checked. The relation of similarity variables to nanoparticles volumetric fractions is discussed. [ABSTRACT FROM AUTHOR]