Soret and MHD effects on bioconvection wall jet flow of nanofluid containing gyrotactic microorganisms

被引：0
作者：
Syed Tauseef Mohyud-Din
Syed Zulfiqar Ali Zaidi
机构：
[1] HITEC University,Department of Mathematics, Faculty of Sciences
来源：
Neural Computing and Applications | 2017年 / 28卷
关键词：
Bioconvection; Gyrotactic microorganisms; MHD; Nanofluid; Soret effect; Wall jet;
D O I：
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中图分类号：
学科分类号：
摘要：
Various applications of bioconvection phenomena in the field of medicine and biotechnology boost us to present the study of laminar wall jet flow in this specific direction. For the purpose, we have considered nanofluid containing gyrotactic microorganisms in the presence of normally applied magnetohydrodynamic forces along with Soret effects. Boundary layer approximation and similarity transformation are utilized to convert governing equations into ordinary differential equations. Influence of different emerging parameters on velocity, temperature and concentration profiles of solute, nanoparticle and motile microorganisms has been investigated. The role of physical quantities like Nusselt number, Sherwood number and density number of microorganisms is also highlighted. Increase in Nusselt number and density number of motile microorganism is observed for incremental values of bioconvection Peclet number. Soret number reflects increasing effect on Nusselt number and decreasing effect on Sherwood number because solute diffusion faces resistance due to higher values of Soret number and in return decreases rate of mass transfer. Also bioconvection Rayleigh number imposes decreasing effect on density number of the motile microorganisms.
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页码：599 / 609
页数：10
相关论文
共 47 条
  • [1] Pedley TJ(1992)Hydrodynamic phenomena in suspensions of swimming micro-organisms Annu Rev Fluid Mech 24 313-358
  • [2] Kessler JO(1911)On the effect of gravity upon the movements and aggregation of Euglena viridis, Ehrb., and other micro-organisms Philos Trans R Soc Lond B Biol Sci 201 333-390
  • [3] Wager H(2004)Effect of small particles on the stability of bioconvection in a suspension of gyrotactic microorganisms in a layer of finite depth Int Commun Heat Mass Transf 31 1-10
  • [4] Kuznetsov AV(1993)Steady free convection flow with variable viscosity and thermal diffusivity along a vertical plate J Phys D 26 2137-2143
  • [5] Avramenko AA(1995)Thermal-diffusion and diffusion-thermo effects on mixed freeforced convective and mass transfer boundary layer flow with temperature dependent viscosity Int J Eng Sci 33 1369-1384
  • [6] Elbashbeshy EMA(1998)Coupled heat and mass transfer in mixed convection over a wedge with variable wall temperature and concentration in porous media: the entire regime Int Commun Heat Mass Transf 25 1145-1158
  • [7] Ibrahim FN(2000)Free convection heat and mass transfer of non-Newtonian power law fluids with yield stress from a vertical flat plate in saturated porous media Int Commun Heat Mass Transf 27 485-494
  • [8] Kafoussias NG(2000)Dufour and Soret effects on free convection boundary layer over a vertical surface embedded in a porous medium Stud Univ Babeş-Bolyai Math 45 11-22
  • [9] Williams EW(1981)The turbulent wall jets Prog Aerosp Sci 19 81-128
  • [10] Yih KA(1983)The turbulent wall jets—measurements and modeling Annu Rev Fluid Mech 15 429-459
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