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Effects of thermophoresis particle deposition and of the thermal conductivity in a porous plate with dissipative heat and mass transfer

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Acta Mechanica Sinica 2011年第3期27卷 389-398页

作者： joaquín zueco O.Anwar Bég L.M.Lpez-Ochoa Thermal Engineering and Fluids Department Technical University of CartagenaETSII Campus Muralla del Mar Aerospace Engineering Department of Engineering and MathematicsSheaf BuildingSheffield Hallam University Mechanical Engineering Departament University of RiojaC/Luís de UlloaLogrono (La Rioja)20E-26004Spain

network simulation method（nSM） is used to solve the laminar heat and mass transfer of an electricallyconducting,heat generating/absorbing fluid past a perforated horizontal surface in the presence of viscous and Joule heating problem. The governing partial differential equations are non-dimensionalized and transformed into a system of nonlinear ordinary differential similarity equations,in a single independent variable,畏. The resulting coupled,nonlinear equations are solved under appropriate transformed boundary conditions. Computations are performed for a wide range of the governing flow parameters,viz Prandtl number,thermophoretic coeffcient（a function of Knudsen number）,thermal conductivity parameter,wall transpiration parameter and Schmidt number. The numerical details are discussed with relevant applications. The present problem finds applications in optical fiber fabrication,aerosol filter precipitators,particle deposition on hydronautical blades,semiconductor wafer design,thermo-electronics and problems including nuclear reactor safety.

关键词： Thermophoresis . MHD . network simulation model . Heat and mass transfer- Hartmann number

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Combined heat and mass transfer by mixed convection MHD flow along a porous plate with chemical reaction in presence of heat source

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Applied Mathematics and Mechanics(English Edition) 2010年第10期31卷 1217-1230页

作者： J.zueco S.AHMED ETS Ingeniería Industrial Departamento de Ingeniería Térmicay FluidosUniversidad Politécnica de Cartagena Fluid Dynamics Research Department of MathematicsGoalpara College

An exact and a numerical solutions to the problem of a steady mixed convective MHD flow of an incompressible viscous electrically conducting fluid past an infinite vertical porous plate with combined heat and mass transfer are presented.A uniform magnetic field is assumed to be applied transversely to the direction of the flow with the consideration of the induced magnetic field with viscous and magnetic dissipations of *** porous plate is subjected to a constant suction velocity as well as a uniform mixed stream *** governing equations are solved by the perturbation technique and a numerical *** analytical expressions for the velocity field,the temperature field,the induced magnetic field,the skin-friction,and the rate of heat transfer at the plate are *** numerical results are demonstrated graphically for various values of the parameters involved in the *** effects of the Hartmann number,the chemical reaction parameter,the magnetic Prandtl number,and the other parameters involved in the velocity field,the temperature field,the concentration field,and the induced magnetic field from the plate to the fluid are *** increase in the heat source/sink or the Eckert number is found to strongly enhance the fluid velocity *** induced magnetic field along the x-direction increases with the increase in the Hartmann number,the magnetic Prandtl number,the heat source/sink,and the viscous *** is found that the flow velocity,the fluid temperature,and the induced magnetic field decrease with the increase in the destructive chemical *** of the study arise in the thermal plasma reactor modelling,the electromagnetic induction,the magnetohydrodynamic transport phenomena in chromatographic systems,and the magnetic field control of materials processing.

关键词： MHD perturbation technique network simulation method Eckert number mixed convection induced magnetic field viscous dissipation heat source/sink

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检查前不予泻剂行CT结肠成像的阳性预测值和临床检查中病人的感受

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国际医学放射学杂志 2012年第4期 401-401页

作者： C.Z. zueco C.S. Sampedro J.D. Corroto P.R. Fernández M.F. Fontanillo 唐光健 Complexo Hospitalario Universitario de Vigo-CHUVI c/ Pizarro 22 36204 Vigo Pontevedra Spain

摘要目的确定使用低剂量碘粪便标记饮食而不服泻剂行检查前准备的CT结肠成像(CTC)检测≥6mm息肉的阳性预测值(PPV),并评价病人的感受。方法1920例危险性平均的病人接受了不服泻剂行检查前准备的CTC检查。采用总量为60mL的泛影葡胺与泛... 详细信息

摘要目的确定使用低剂量碘粪便标记饮食而不服泻剂行检查前准备的CT结肠成像(CTC)检测≥6mm息肉的阳性预测值(PPV),并评价病人的感受。方法1920例危险性平均的病人接受了不服泻剂行检查前准备的CTC检查。采用总量为60mL的泛影葡胺与泛影酸钠(22.2g碘)行粪便标记。标准诊断方法

关键词： CT结肠成像粪便标记病人接受性结直肠癌结直肠息肉的肠道准备腺瘤

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