Heat and mass transfer effects on the mixed convective flow of chemically reacting nanofluid past a moving/stationary vertical plate

• Main Authors: B. Mahanthesh, B.J. Gireesha, Rama Subba Reddy Gorla
• Format: Article
• Language: English
• Published: Elsevier 2016-03-01
• Series: Alexandria Engineering Journal
• Subjects: Nanofluid; Heat and mass transfer; Thermal radiation; Laplace transform technique; Chemical reaction; Nusselt and Sherwood number
• Online Access: http://www.sciencedirect.com/science/article/pii/S1110016816000284

The problem of conjugate effects of heat and mass transfer over a moving/stationary vertical plate has been studied under the influence of applied magnetic field, thermal radiation, internal heat generation/absorption and first order chemical reaction. The fluid is assumed to be electrically conducting water based Cu-nanofluid. The Tiwari and Das model is used to model the nanofluid, whereas Rosseland approximation is used for thermal radiation effect. Unified closed form solutions are obtained for the governing equations using Laplace transform method. The velocity, temperature and concentration profiles are expressed graphically for different flow pertinent parameters. The physical quantities of engineering interest such as skin friction, Nusselt number and Sherwood number are also computed. The obtained analytical solutions satisfy all imposed initial and boundary conditions and they can be reduced to known previous results in some limiting cases. It is found that, by varying nanoparticle volume fraction, the flow and heat transfer characteristics could be controlled.