Dr. KETINENI SUBBARAYUDU
@vitspdtr.ac.in
Assistant Professor, Mathematics, Depeartment of Basic science and Humanities
vaagdevi institute of technology and sciecnce
RESEARCH, TEACHING, or OTHER INTERESTS
Applied Mathematics, Numerical Analysis, Mathematical Physics, Computational Mathematics
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
S. SUNEETHA, K. SUBBARAYUDU, and P. Bala Anki REDDY
Journal of Thermal Engineering
Hybrid nanofluids (HNFs) have received the prominent attention of researchers due to their improved thermophysical properties than conventional liquids and single-phase nanofluids. Such high potential heat transfer fluids are obtained from the suspension of two or more dissimilar nanoparticles in a regular heat transfer liquid. Owing to the high heat transfer properties of hybrid nanofluid, these are widely used in industrial processes, manufacturing processes, and biomedical engineering. This framework presents a detailed review of hybrid nanofluids preparation, stability, thermophysical properties, and importance in various engineering fields. Furthermore, present analysis addresses the pH control and ultrasound intensity of hybrid nanofluid. This analysis also manifests a hybrid nanofluid preparation method and suitable nanoparticles mixers for various industrial uses. This study reveals some future trends and possibilities related to HNF and a few suggestions regarding the scope in the future research in this area. A big impact with small particles for coming years. The hybrid nanofluid are having higher thermal conductivity which affects significantly to machining output response variables. By hybridizing the suitable combination of nanoparticles, the required heat transfer effect can be obtained still at low particle concentrations.
S. Suneetha, K. Subbarayudu, and P. Bala Anki Reddy
Springer Nature Singapore
P. Bala Anki Reddy, S. Suneetha, K. Subbarayudu, T.H. Al-Arabi, and A.M. Rashad
Informa UK Limited
Topical endeavour is made to describe and search out the flow characteristics correspond to nano flow over thin liquid film dispensed with Molybdenum disulphide (MOS2) in a Casson fluid past an unsteady exponentially stretching sheet in porous medium. Due to this problem is modelled to boost the rate of thermal transfer of Diathermic oils, particularly, Kerosene-oil (KO) and Engine-oil (EO) by considering uneven heat source/sink. The governing equations are standardized into a system of ordinary differential equations by means of similarity transformations. The elucidation of the physical problem is conquered by shooting technique. The impact of pertinent parameters on flow and heat transfer is deliberated with the aid of graphs and tables. It is shown that the rate of heat transfer enhances by adding MOS2 in engine oil than MOS2 in kerosene oil, which improves its lubrication properties. The current conclusions are promoted academic research, tribology and polymer industry.
K. Subbarayudu, L. Wahidunnisa, S. Suneetha, and P. Bala Anki Reddy
Springer Singapore
K. Subbarayudu, S. Suneetha, and P. Bala Anki Reddy
Elsevier BV
S. Suneetha, K. Subbarayudu, L. Wahidunnisa and Bala Anki Reddy Polu
This work concentrates on the study of the two-dimensional hydromagnetic flow of nanofluids over an suddenly started nonlinear stretching sheet in the presence of radiation and dissipation. The Soret effect and heat generation are also taken into consideration. The transformed ordinary differential equations (ODEs) are solved numerically via the MATLAB RK4S approach bvp4c solver with the assistance of similarity variables. The effects of various parameters are explored and shown in graphs and tables. It is noted that the concentration increases as the Soret number increases within the boundary layer. An increase in velocity slip decreases the velocity and a reverse effect is observed for temperature. This model has significance in different areas such as polymer chemical and metallurgical industries, and other fields that use the latest technology and thermo-processed materials such as metallic and glass sheets.
K. Subbarayudu, S. Suneetha, P. Bala Anki Reddy, and A. M. Rashad
Springer Science and Business Media LLC
T. V. S. Sekhar, R. Sivakumar, K. Subbarayudu, and Y. V. S. S. S. Sanyasiraju
Informa UK Limited
The heat transfer due to forced convection from an isothermal sphere in a steady stream of viscous, incompressible, and electrically conducting fluid under the influence of an external magnetic field is analyzed. Fourth order compact scheme is combined with the multigrid method to solve the energy equation in spherical polar coordinates. It is known from the literature that in the absence of a magnetic field, the variation of mean Nusselt number N m with Prandtl number Pr follows a power law which in the present work is modified to include the effect of the magnetic field. For low moderate strength of magnetic field, i.e., 0 < N ≤ 2, a degradation of heat transfer is observed, however for N ≥ 3 the heat transfer is increased leading to a non-monotonic behavior. Further, it is observed that the thermal gradients are found to be non-monotonic with magnetic field. The relation between mean Nusselt number and thermal boundary layer thickness with respect to Prandtl number has also been analyzed.
T.V.S. Sekhar, R. Sivakumar, T.V.R. Ravi Kumar, and K. Subbarayudu
Elsevier BV