MHD peristaltic flow of a hyperbolic tangent fluid in a non-uniform channel with heat and mass transfer

[摘要] The influence of elastic wall properties on the peristaltic transport of a conducting hyperbolic tangent fluid in a non-uniform channel is investigated with heat and mass transfer. The flow is examined in a fixed frame of reference under the assumptions of long wavelength and low Reynolds number. The velocity slip, temperature and concentration jump boundary conditions are considered at the walls. The perturbation method of solution for stream function, velocity, temperature, concentration and the coefficient of heat transfer are obtained in terms of small Weissenberg number. The influence of several pertinent parameters on the flow are discussed by plotting graphs. The trapping phenomenon is also analysed. It is noticed that the size of the trapping bolus increases with increasing the power law index of hyperbolic tangent fluid.

[发布机构] Department of Mathematics, Madanapalle Institute of Technology and Science, Madanapalle; 517 325, India^1;Department of Mathematics, School of Advanced Science, VIT University, Vellore; 632 014, India^2;Department of Mathematics, Sri Venkateswara University, Tirupati; 517 502, India^3

[效力级别] 工业技术

[关键词] Concentration jumps;Heat and mass transfer;Hyperbolic tangent;Low Reynolds number;Peristaltic flows;Peristaltic transport;Perturbation method;Weissenberg number