MHD boundary layer flow of Casson nanofluid over a vertical exponentially stretching cylinder under Newtonian heating

• Published in: Research journal of pharmacy and technology 2017-04, Vol.10 (4), p.998
• Main Authors: Babu, M. Sreedhar, Gangadhar, K., Lavanya, M.
• Format: Article
• Language: English
• Subjects: Boundary conditions; Chemical reactions; Cooling; Enhanced oil recovery; Fluid mechanics; Heat transfer; Ordinary differential equations; Partial differential equations; Reynolds number; Velocity
• ISSN: 0974-3618; 0974-360X; 0974-306X
• DOI: 10.5958/0974-360X.2017.00181.0

Magneto-hydronomics (MHD) boundary layers with heat and mass transfer over flat surfaces are found in many engineering and geophysical applications such as geothermal reservoirs, thermal insulation, enhanced oil recovery, packed-bed catalytic reactors, cooling of nuclear reactors. (2016) studied the influence of Non Darcy porous medium and MHD on micro polar fluid over a non-linear stretching sheet and they concluded that on increasing the material parameter leads to a decreasing skin-friction coefficient as well as wall couple stress." (2.10) where primes denote differentiation with respect to T] Here ... is the buoyancy (natural convection) parameter, ... is the Prandtl number ... is the Lewis number, ... is the magnetic parameter, ... is the buoyancy ratio, ... is the Brownian motion parameter, ... is the thermophoresis parameter, Re ... is the local Reynolds number ... is the conjugate parameter for Newtonian heating The physical quantities of interest are the shear stress at the surface Tw, the heat flux at the surface of the cylinder qw, the wall skin friction coefficient С/, and the local Nusselt number Nuz which are defined as ... 4RESULTS AND DISCUSSION Numerical values have been assigned to the governing parameters, the velocity, the temperature and concentration as well as skin friction coefficient, local Nusselt number and local Sherwood number, to get a clear understanding of the physical problem encountered.