Rama Subba Reddy Gorla

Bio: Rama Subba Reddy Gorla is an academic researcher from Cleveland State University. The author has contributed to research in topics: Heat transfer & Boundary layer. The author has an hindex of 41, co-authored 402 publications receiving 6338 citations. Previous affiliations of Rama Subba Reddy Gorla include Chrysler Group LLC & Gannon University.

Free convection on a vertical stretching surface with suction and blowing

Abstract: The natural convective heat transfer from a vertical stretching sheet with surface mass transfer is analyzed. A three dimensional similarity solution to the governing momentum and energy equations is presented. Numerical data for the friction factor and Nusselt number has been tabulated for a range of surface mass transfer rates and Prandtl numbers. Surface mass transfer has a considerable influence on the heat transfer mechanism.

Short communication radiation effects on MHD free convection flow of a gas past a semi—infinite vertical plate

Abstract: Free convection heat transfer due to the simultaneous action of buoyancy, radiation and transverse magnetic field is investigated for a semi‐infinite vertical plate Solutions are derived by expanding the stream function and the temperature into a series in terms of the parameter ζ = x1/2 L–1/2, where L is the length of the plate Velocity and temperature functions are shown on graphs and the numerical values of functions affecting the shear stress and the rate of heat transfer are entered in a table The effects of the magnetic field parameter λ and the radiation parameter F on these functions are discussed

Finite difference solution of mhd radiative boundary layer flow of a nanofluid past a stretching sheet

Abstract: Unsteady heat and mass flow of a nanofluid past a stretching sheet with thermal radiation in the presence of magnetic field is studied. To obtain non-similar equation, continuity, momentum, energy and concentration equations have been non-dimensionalised by usual transformation. The non-similar solutions are presented here which depends on the Magnetic parameter M respectively . The obtained equations have been solved by explicit finite difference method. The temperature and concentration profiles are discussed for the different values of the above parameters with different time steps.

A Benchmark Study on the Thermal Conductivity of Nanofluids

Abstract: This article reports on the International Nanofluid Property Benchmark Exercise, or INPBE, in which the thermal conductivity of identical samples of colloidally stable dispersions of nanoparticles or “nanofluids,” was measured by over 30 organizations worldwide, using a variety of experimental approaches, including the transient hot wire method, steady-state methods, and optical methods. The nanofluids tested in the exercise were comprised of aqueous and nonaqueous basefluids, metal and metal oxide particles, near-spherical and elongated particles, at low and high particle concentrations. The data analysis reveals that the data from most organizations lie within a relatively narrow band (±10% or less) about the sample average with only few outliers. The thermal conductivity of the nanofluids was found to increase with particle concentration and aspect ratio, as expected from classical theory. There are (small) systematic differences in the absolute values of the nanofluid thermal conductivity among the various experimental approaches; however, such differences tend to disappear when the data are normalized to the measured thermal conductivity of the basefluid. The effective medium theory developed for dispersed particles by Maxwell in 1881 and recently generalized by Nan et al. [J. Appl. Phys. 81, 6692 (1997)], was found to be in good agreement with the experimental data, suggesting that no anomalous enhancement of thermal conductivity was achieved in the nanofluids tested in this exercise.