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| 1 | Boundary layer flow of third grade nanofluid with Newtonian heating and viscous dissipation显示文摘Two-dimensional boundary layer flow of an incompressible third grade nanofluid over a stretching surface is investigated.Influence of thermophoresis and Brownian motion is considered in the presence of Newtonian heating and viscous dissipation.Governing nonlinear problems of velocity, temperature and nanoparticle concentration are solved via homotopic procedure.Convergence is examined graphically and numerically. Results of temperature and nanoparticle concentration are plotted and discussed for various values of material parameters, Prandtl number, Lewis number, Newtonian heating parameter, Eckert number and thermophoresis and Brownian motion parameters. Numerical computations are performed. The results show that the change in temperature and nanoparticle concentration distribution functions is similar when we use higher values of material parameters β1 andβ2. It is seen that the temperature and thermal boundary layer thickness are increasing functions of Newtonian heating parameter γ.An increase in thermophoresis and Brownian motion parameters tends to an enhancement in the temperature. | S.A.Shehzad Tariq Hussain T.Hayat M.Ramzan A.Alsaedi | 2015 | Journal of Central South University2015，22，1： | 8 |
| 2 | Convective heat and mass transfer in MHD mixed convection flow of Jeffrey nanofluid over a radially stretching surface with thermal radiation显示文摘Mixed convection flow of magnetohydrodynamic(MHD) Jeffrey nanofluid over a radially stretching surface with radiative surface is studied. Radial sheet is considered to be convectively heated. Convective boundary conditions through heat and mass are employed. The governing boundary layer equations are transformed into ordinary differential equations. Convergent series solutions of the resulting problems are derived. Emphasis has been focused on studying the effects of mixed convection, thermal radiation, magnetic field and nanoparticles on the velocity, temperature and concentration fields. Numerical values of the physical parameters involved in the problem are computed for the local Nusselt and Sherwood numbers are computed. | M.BILAL ASHRAF T.HAYAT A.ALSAEDI S.A.SHEHZAD | 2015 | Journal of Central South University2015，22，3： | 6 |
| 3 | MHD three-dimensional flow of Jeffrey fluid with Newtonian heating显示文摘The magnetohydrodynamic(MHD) three-dimensional flow of Jeffrey fluid in the presence of Newtonian heating is investigated. Flow is caused by a bidirectional stretching surface. Series solutions are constructed for the velocity and temperature fields. Convergence of series solutions is ensured graphically and numerically. The variations of key parameters on the physical quantities are shown and discussed in detail. Constructed series solutions are compared with the existing solutions in the limiting case and an excellent agreement is noticed. Nusselt numbers are computed with and without magnetic fields. It is observed that the Nusselt number decreases in the presence of magnetic field. | S.A.Shehzad T.Hayat M.S.Alhuthali S.Asghar | 2014 | Journal of Central South University2014，21，4： | 6 |
| 4 | On the MHD flow of fractional generalized Burgers' fluid with modified Darcy's law显示文摘这个工作涉及把部分演算途径用于一个部分概括汉堡包在由使用的一个多孔的空格的液体的管子流动修改了的磁电机水动力学(MHD ) Darcy 的关系。液体电子上在横向的方向面对一个经常的应用磁场正在进行。速度分发的准确答案为部分演算在 Fourier 变换的帮助下被开发。答案因为 Navier 司烧,第二个等级,麦克斯韦, Oldroyd-B 和汉堡包是液体作为现在的分析的限制盒子出现。 | T.Hayat M.Khan S.Asghar | 2007 | Acta Mechanica Sinica2007，23，3： | 5 |
| 5 | Mixed convective heat and mass transfer analysis for peristaltic transport in an asymmetric channel with Soret and Dufour effects显示文摘The present investigation addresses the simultaneous effects of heat and mass transfer in the mixed convection peristaltic flow of viscous fluid in an asymmetric channel. The channel walls exhibit the convective boundary conditions. In addition, the effects due to Soret and Dufour are taken into consideration. Resulting problems are solved for the series solutions. Numerical values of heat and mass transfer rates are displayed and studied. Results indicate that the concentration and temperature of the fluid increase whereas the mass transfer rate at the wall decreases with increase of the mass transfer Biot number. Furthermore, it is observed that the temperature decreases with the increase of the heat transfer Biot number. | F.M.Abbasi A.Alsaedi T.Hayat | 2014 | Journal of Central South University2014，21，12： | 5 |
| 6 | Slip effects on shearing flows in a porous medium显示文摘这篇论文处理磁电机水动力学(MHD ) 当没有滑倒状况不再是有效的时,在多孔的媒介 Oldroyd 8 常数液体流动。修改 Darcy 的法律在流动建模被使用。有非线性的边界条件的非线性的微分方程与一种反复的技术在联合用有限差别计划数字地被解决。数字结果为 Couette, Poiseuille 和概括 Couette 流动被获得。效果在速度侧面上滑动参数被讨论。 | M.Khan T.Hayat Y.Wang | 2008 | Acta Mechanica Sinica2008，24，1： | 5 |
| 7 | Stokes'first problem for the fourth order fluid in a porous half space显示文摘在这研究,在多孔的一半的第四顺序液体的流动空间被建模。由使用修改 Darcy 的法律,在一个突然动人的扁平的盘子上的流动数字地被学习。速度侧面上的兴趣的各种各样的参数的影响被揭示。 | T.Hayat F.Shahazad M.Ayub | 2007 | Acta Mechanica Sinica2007，23，1： | 4 |
| 8 | Heat Transfer Analysis for Peristaltic Mechanism in Variable Viscosity Fluid显示文摘An analysis is carried out for a peristaltic flow of a third-order fluid with heat transfer and variable viscosity when no-slip condition does not hold.Perturbation solution is discussed and a comparative stuity between the cases of constant and variable viscosities is presented and analyzed. | T.Hayat F.M.Abbasi Awatif A.Hendi | 2011 | Chinese Physics Letters2011，28，4： | 4 |
| 9 | Flow of Casson nanofluid with viscous dissipation and convective conditions: A mathematical model显示文摘The magnetohydrodynamic(MHD) boundary layer flow of Casson fluid in the presence of nanoparticles is investigated.Convective conditions of temperature and nanoparticle concentration are employed in the formulation. The flow is generated due to exponentially stretching surface. The governing boundary layer equations are reduced into the ordinary differential equations. Series solutions are presented to analyze the velocity, temperature and nanoparticle concentration fields. Temperature and nanoparticle concentration fields decrease when the values of Casson parameter enhance. It is found that the Biot numbers arising due to thermal and concentration convective conditions yield an enhancement in the temperature and concentration fields. Further, we observed that both the thermal and nanoparticle concentration boundary layer thicknesses are higher for the larger values of thermophoresis parameter. The effects of Brownian motion parameter on the temperature and nanoparticle concentration are reverse. | T.HUSSAIN S.A.SHEHZAD A.ALSAEDI T.HAYAT M.RAMZAN | 2015 | Journal of Central South University2015，22，3： | 4 |
| 10 | Stagnation-point flow of couple stress fluid with melting heat transfer显示文摘Melting heat transfer in the boundary layer flow of a couple stress fluid over a stretching surface is investigated. The developed differential equations are solved for homotopic solutions. It is observed that the velocity and the boundary layer thickness are decreasing functions of the couple stress fluid parameter. However, the temperature and surface heat transfer increase when the values of the couple stress fluid parameter increase. The velocity and temperature fields increase with an increase in the melting process of the stretching sheet. | T.HAYAT M.MUSTAFA Z.IQBAL A.ALSAEDI | 2013 | Applied Mathematics and Mechanics(English Edition)2013，34，2： | 3 |
| 11 | MHD flow of nanofluids over an exponentially stretching sheet in a porous medium with convective boundary conditions显示文摘This article concentrates on the steady magnetohydrodynamic(MHD) flow of viscous nanofluid. The flow is caused by a permeable exponentially stretching surface. An incompressible fluid fills the porous space. A comparative study is made for the nanoparticles namely Copper(Cu), Silver(Ag), Alumina(Al2O3) and Titanium Oxide(TiO2). Water is treated as a base fluid. Convective type boundary conditions are employed in modeling the heat transfer process. The non-linear partial differential equations governing the flow are reduced to an ordinary differential equation by similarity transformations. The obtained equations are then solved for the development of series solutions. Convergence of the obtained series solutions is explicitly discussed. The effects of different parameters on the velocity and temperature profiles are shown and analyzed through graphs. | T.Hayat M.Imtiaz A.Alsaedi R.Mansoor | 2014 | Chinese Physics B2014，23，5： | 3 |
| 12 | Mixed Convection Stagnation Point Flow of Casson Fluid with Convective Boundary Conditions显示文摘The mixed convection stagnation-point flow of an incompressible non-Newtonian fluid over a stretching sheet under convective boundary conditions is investigated.Mathematical formulation is presented for a Casson fluid.The resulting partial differential equations are converted into the ordinary differential equations by the suitable transformations.The velocity and temperature profiles are computed by employing the homotopy analysis method.The plotted graphs illustrate the flow and heat transfer characteristics and their dependence upon the embedded parameters.Numerical values of skin-friction coefficient and Nusselt number are given and examined.Comparison of the present results with the existing solution is also given. | T.Hayat S.A.Shehzad A.Alsaedi M.S.Alhothuali | 2012 | Chinese Physics Letters2012，29，11： | 3 |
| 13 | Heat transfer analysis in peristaltic flow of MHD Jeffrey fluid with variable thermal conductivity显示文摘The effect of an inclined magnetic field in the peristaltic flow of a Jeffrey fluid with variable thermal conductivity is discussed. The temperature dependent thermal conductivity of fluid in an asymmetric channel is taken into account. A dimensionless nonlinear system subject to a long wavelength and a low Reynolds number is solved.The explicit expressions of the stream function, the axial velocity, the pressure gradient,and the temperature are obtained. The effects of all physical parameters on peristaltic transport and heat transfer characteristics are observed from graphical illustrations. The behaviors of θ∈ [0, π/2] and θ∈ [π/2, π] on fluid flow and heat transfer are found to be opposite. Further, the size of trapped bolus is greater for the case of the inclined magnetic field(θ = π/2) than that for the case of the transverse magnetic field(θ = π/2). The heat transfer coefficient decreases when the constant thermal conductivity(Newtonian)fluid is changed to the variable thermal conductivity(Jeffrey) fluid. | Q.HUSSAIN S.ASGHAR T.HAYAT A.ALSAEDI | 2015 | Applied Mathematics and Mechanics(English Edition)2015，36，4： | 3 |
| 14 | MHD flow of upper-convected Maxwell fluid over porous stretching sheet using successive Taylor series linearization method显示文摘This paper investigates the magnetohydrodynamic(MHD) boundary layer flow of an incompressible upper-convected Maxwell(UCM) fluid over a porous stretching surface.Similarity transformations are used to reduce the governing partial differential equations into a kind of nonlinear ordinary differential equations.The nonlinear problem is solved by using the successive Taylor series linearization method(STSLM).The computations for velocity components are carried out for the emerging parameters.The numerical values of the skin friction coefficient are presented and analyzed for various parameters of interest in the problem. | S.S.MOTSA T.HAYAT O.M.ALDOSSARY | 2012 | Applied Mathematics and Mechanics(English Edition)2012，33，8： | 3 |
| 15 | Heat transfer in a porous saturated wavy channel with asymmetric convective boundary conditions显示文摘The viscous flow in a wavy channel with convective boundary conditions is investigated. The channel is filled with a porous viscous fluid. Two cases of equal and different external convection coefficients on the walls are taken into account. Effect of viscous dissipation is also considered. The governing equations are derived employing long wavelength and low Reynolds number approximations. Exact closed form solutions are obtained for the simplified equations. Important physical features for peristaltic flow caused by the wavy wave are pumping, trapping and heat transfer rate at the channel walls. These are discussed one by one in depth and detail through graphical illustrations. Special attention has been given to the effects of convective boundary conditions. The results show that for Bi1≠Bi2, there exists a critical value of Brinkman number Brc at which the temperatures of both the walls become equal. And, for Bi1>Bi2 and Br>Brc, the temperature of the cold wall exceeds the temperature of hot wall. | Q.Hussain S.Asghar T.Hayat A.Alsaedi | 2015 | Journal of Central South University2015，22，1： | 2 |
| 16 | Melting heat transfer in Cu-water and Ag-water nanofluids flow with homogeneous-heterogeneous reactions显示文摘This article addresses melting heat transfer in magnetohydrodynamics(MHD)nanofluid flows by a rotating disk. The analysis is performed in Cu-water and Ag-water nanofluids. Thermal radiation, viscous dissipation, and chemical reactions impacts are added in the nanofluid model. Appropriate transformations lead to the nondimensionalized boundary layer equations. Series solutions for the resulting equations are computed.The role of pertinent parameters on the velocity, temperature, and concentration is analyzed in the outputs. It is revealed that the larger melting parameter enhances the velocity profile while the temperature profile decreases. The surface drag force and heat transfer rate are computed under the influence of pertinent parameters. Furthermore, the homogeneous reaction parameter serves to decrease the surface concentration. | M.IMTIAZ F.SHAHID T.HAYAT A.ALSAEDI | 2019 | Applied Mathematics and Mechanics(English Edition)2019，40，4： | 2 |
| 17 | Hall and ion slip effects on peristaltic flow and heat transfer analysis with Ohmic heating显示文摘The peristaltic transport of a magnetohydrodynamic(MHD) fluid is examined for both symmetric and asymmetric channels. Hall and ion slip effects are taken into account. The heat transfer is analyzed by considering the effects of viscous and Ohmic dissipations. The relevant flow problems are first modeled, and then the closed form solutions are constructed under the assumptions of long wavelength and low Reynolds number. The solutions are analyzed through graphical illustration. It is noted that the velocity increases but the temperature decreases with the increases in the Hall and ion slip parameters. The axial pressure gradient is less in magnitude in the presence of Hall and ion slip currents. The Hall and ion slip effects are to decrease the maximum pressure against which peristalsis works as a pump. The free pumping flux decreases with the increases in the Hall and ion slip parameters. The increases in the Hall and ion slip parameters result in an increase in the size of the trapped bolus. | S.ASGHAR Q.HUSSAIN T.HAYAT F.ALSAADI | 2014 | Applied Mathematics and Mechanics(English Edition)2014，35，12： | 2 |
| 18 | Flow of Burgers' fluid over an inclined stretching sheet with heat and mass transfer显示文摘Effects of heat and mass transfer in the flow of Burgers fluid over an inclined sheet are discussed. Problems formulation and relevant analysis are given in the presence of thermal radiation and non-uniform heat source/sink. Thermal conductivity is taken temperature dependent. The nonlinear partial differential equations are simplified using boundary layer approximations. The resultant nonlinear ordinary differential equations are solved for the series solutions. The convergence of series solutions is obtained by plotting theη-curves for the velocity, temperature and concentration fields. Results of this work describe the role of different physical parameters involved in the problem. The Deborah numbers corresponding to relaxation time(β1 and β2) and angle of inclination(α) decrease the fluid velocity and concentration field. Concentration field decays as Deborah numbers corresponding to retardation time(β3) and mixed convection parameter(G) increase. Large values of heat generation/absorption parameters A/B, and the temperature distribution across the boundary layer increase. Numerical values of local Nusselt number,-θ′(0), and local Sherwood number,-f′(0), are computed and analyzed. It is found that θ′(0) increases with an increase in β3. | T.Hayat Sadia Asad A.Alsaedi | 2015 | Journal of Central South University2015，22，8： | 2 |
| 19 | 霍尔效应和欧姆热效应下纳米流体通过弯曲通道时的蠕动(英文)显示文摘纳米流体以其优异的热物理性质吸引了许多科学家。在常规流体中加入少量的纳米粒子会显著地增强传热特性。纳米材料的可持续性和效率对纳米技术的进步具有关键作用。本文分析了霍尔效应、欧姆热效应和速度滑移对纳米流体蠕动的影响。考虑了对流边界条件和热的产生/吸收,以促进传热特性。在曲线坐标下导出了弯曲通道中蠕动的控制方程。在长波长和小雷诺数的假设条件下,对方程进行了数值求解。研究表明,纳米流体提高了传热速率,降低了流体温度。Hartman数和Hall参数在流体运动和传热特性上表现出相反的行为。在存在速度滑移的情况下,压力梯度迅速减小,在通道的狭小区域表现出主导作用。 | T.HAYAT B.AHMED F.M.ABBASI A.ALSAEDI | 2019 | Journal of Central South University2019，26，9： | 2 |
| 20 | Peristaltic flow of couple stress fluid through uniform porous medium显示文摘Investigation concerning peristaltic motion of couple stress fluid is made. An incompressible couple stress fluid occupies the porous medium. Mathematical analysis is presented through large wavelength and low Reynolds number. Exact analytical expressions of axial velocity, volume flow rate, pressure gradient, and stream function are calculated as a function of couple stress parameter. The essential feature of the analysis is a full description of influence of couple stress parameter and permeability parameter on the pressure, frictional force, mechanical efficiency, and trapping. | A.ALSAEDI N.ALI D.TRIPATHI T.HAYAT | 2014 | Applied Mathematics and Mechanics(English Edition)2014，35，4： | 2 |
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