Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
Computational Thermal Sciences: An International Journal
ESCI SJR: 0.249 SNIP: 0.434 CiteScore™: 1.4

ISSN Druckformat: 1940-2503
ISSN Online: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/ComputThermalScien.2014008401
pages 155-169

FINITE-ELEMENT ANALYSIS OF TRANSIENT HEAT AND MASS TRANSFER IN MICROSTRUCTURAL BOUNDARY LAYER FLOW FROM A POROUS STRETCHING SHEET

Diksha Gupta
Department of Mathematics, Jaypee Institute of Information Technology, A-10, Sector-62, Noida-201307, Uttar Pradesh, India
Lokendra Kumar
Department of Mathematics, Jaypee Institute of Information Technology, A-10, Sector-62, Noida-201307, Uttar Pradesh, India
Osman Anwar Beg
Gort Engovation-Aerospace, Medical and Energy Engineering, Gabriel's Wing House, 15 Southmere Avenue, Bradford, BD73NU, United Kingdom; Fluid Mechanics, Department of Mechanical and Aeronautical Engineering, Salford University, M54WT, England, United Kingdom
Bani Singh
Department of Mathematics, Jaypee Institute of Information Technology, A-10, Sector-62, Noida-201307, Uttar Pradesh, India

ABSTRAKT

In the present study, the unsteady laminar heat and mass transfer in incompressible micropolar boundary layer flow from a porous stretching sheet with variable suction has been examined. The unsteadiness in the flow, temperature, and concentration fields is caused by the time dependence of the stretching velocity, surface temperature, and surface concentration. By using a similarity transformation the governing time-dependent boundary layer equations with appropriate boundary conditions are rendered into a set of nonlinear ordinary differential equations. The dimensionless governing equations are then solved numerically by using the finite-element method. The effect of the suction parameter, unsteadiness parameter, coupling constant parameter, and Schmidt number on the distributions of the velocity, microrotation, temperature, and concentration functions are examined at length. The skin friction, wall heat transfer rate, and wall mass transfer are also computed. Under special cases, comparison of the flow velocity and rate of heat transfer is made with the exact solution and also with numerical results available from the literature. An excellent agreement between the results is obtained. Furthermore, validation of the present finite-element solutions is also achieved with a second-order-accurate finite-difference method outlined in the literature. In addition, the convergence of the finite-element numerical solutions is discussed explicitly. The study is relevant to materials-processing technology.


Articles with similar content:

UNSTEADY BOUNDARY LAYER FLOW OVER A PERMEABLE CURVED STRETCHING/SHRINKING SURFACE
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
Ioan Pop, Roslinda Nazar, Fadzilah Md. Ali, Norfifah Bachok, Siti Suzilliana Putri Mohd Isa, Norihan Md. Arifin
MULTIPLE SLIP EFFECTS ON UNSTEADY MAGNETOHYDRODYNAMIC NANOFLUID TRANSPORT WITH HEAT GENERATION/ABSORPTION EFFECTS IN TEMPERATURE DEPENDENT POROUS MEDIA
Journal of Porous Media, Vol.18, 2015, issue 9
Osman Anwar Beg, Waqar Khan, Mohammed Jashim Uddin
FINITE ELEMENT SIMULATION OF NONLINEAR MAGNETO-MICROPOLAR STAGNATION POINT FLOW FROM A POROUS STRETCHING SHEET WITH PRESCRIBED SKIN FRICTION
Computational Thermal Sciences: An International Journal, Vol.7, 2015, issue 1
Osman Anwar Beg, Diksha Gupta, Bani Singh, Lokendra Kumar
CHEMICALLY REACTIVE HYDROMAGNETIC FLOW OVER A STRETCHABLE OSCILLATORY ROTATING DISK WITH THERMAL RADIATION AND HEAT SOURCE/SINK: A NUMERICAL STUDY
Heat Transfer Research, Vol.50, 2019, issue 15
Sabir Ali Shehzad, Amar Rauf, Zaheer Abbas
UNSTEADY MAGNETOHYDRODYNAMIC CHEMICALLY REACTING FLUID FLOW PAST AN INCLINED VERTICAL PERMEABLE MOVING PLATE
International Journal of Fluid Mechanics Research, Vol.47, 2020, issue 3
Rallabandi Srinivasa Raju, M. Anil Kumar, Rama Subba Reddy Gorla, Gurejala Jithender Reddy