Suripeddi Srinivas
@vitap.ac.in
Professor, Department of Mathematics
VIT-AP University
RESEARCH INTERESTS
Mathematical Modelling, Fluid Dynamics
Scopus Publications
Scopus Publications
J Bala Anasuya and Suripeddi Srinivas
SAGE Publications
This investigation aims to examine the hydromagnetic flow of two liquid flows of fully developed incompressible Newtonian fluid in an inclined channel through the porous medium accounting for radiative heat flux, Joule heating, and viscous dissipation. The walls of the channel are maintained at different temperatures. A double perturbation method is employed to derive analytical results for velocity and temperature. Graphical results are presented for various arising parameters such as Hartmann number, Grashoff number, ratio of viscosity parameter, thermal conductivity ratio, and porous parameter. Further, the results for mass flux are presented in a tabular form and discussed. Reduction in the velocity and temperature distribution is observed by enhancing Darcy dissipation and frequency parameter. As the angle of inclination increases, there is a rise in flow and heat distribution. With the strength of the magnetic field and the rise in the Reynolds number, the mass flux decreases. A comparative study is carried out with the previously published work and the results are found to be in good agreement.
A. Magesh, P. Tamizharasi, O. D. Makinde, and S. Srinivas
World Scientific Pub Co Pte Ltd
Activation energy and thermal radiation as a means of heat transfer are significant and fascinating phenomena for scientists and researchers because of their significance in cancer treatment. As a result, heat kills cancer cells and shrinks tumors, making hyperthermia therapy a cutting-edge cancer treatment. This paper examines the peristaltic motion of a Johnson–Segalman nanofluid across an asymmetric pliable microchannel under the impact of activation energy. We obtained the governing equations for the non-Newtonian nanofluid. Partial differential equations (PDEs) are reduced to ordinary differential equations (ODEs) under the assumption of large wavelengths and tiny Reynolds number assumptions. The flow patterns and trapping phenomena were numerically generated using the NDSolve command of the computational mathematical software Mathematica. The influence of important liquid parameters was examined with graphical representations of the results. The current study reveals an enhancement in the heat generation parameter, an enhancement in the temperature and a reduction in the concentration.
Komal Goyal and Suripeddi Srinivas
Informa UK Limited
Komal Goyal and Suripeddi Srinivas
Informa UK Limited
A. Magesh, V. Pushparaj, S. Srinivas, and P. Tamizharasi
AIP Publishing
Nanometric particles with base liquids cause the production of nanofluids, which are distinguished by their outstanding thermally conductive fluid properties and the expansion of electrical and mechanical devices. Based on these considerations, we devised a study to investigate the effect of activation energy on the peristaltic motion of Carreau nanofluid inside a curved asymmetric channel under the influence of a magnetic field. The governing equations for the curved channel of non-Newtonian fluid flow are formulated. The nonlinear partial differential equations system has been reduced to ordinary differential equations by the assumptions of low Reynolds number and long wavelength approximations. The resulting nonlinear coupled differential equations are numerically solved directly using NDSolve (numerical differential equation solver) coding of computational mathematical software Mathematica, and velocity, temperature, concentration, and streamlines are plotted. With graphical demonstrations, the influence of essential parameters on velocity, temperature, concentration, and streamlines is explained in detail. The dimensionless temperature distribution grows as the activation energy parameter grows. In reality, the number of energetic particles (with energies equal to or greater than activation energy) increases, resulting in improved temperature distribution.
Komal Goyal and Suripeddi Srinivas
Akademia Baru Publishing
This study is concerned with starting flow of immiscible fluids in porous space owing to a sudden pressure gradient in the presence of a transverse magnetic field. The flow is divided into two regions, Region1(upper layer) and Region2(lower layer), and they are of variable widths. The required eigenvalues and eigenfunctions, along with the orthogonality, are developed. The analytic solution took on an infinite series structure due to the time-dependent initial transient component of the velocity. Analytical expressions for fluid velocity, volumetric flow rate, and shear stress are evaluated for pertinent parameters. We take cases when channels are filled with air over water and oil over water for analyzing the results. Channel with air over water illustrates that the upper layer is filled with air and the lower layer is filled with water. Similarly, a channel with oil over water illustrates that the upper layer is filled with oil, and the lower layer is filled with water. The effect of Hartmann number and time on velocity profiles has been seen in this study for variable fluid widths in both cases. It is observed that the starting flow velocity slows down with the increase of Hartmann number and porous medium parameter. The effect of the Hartmann number and porous medium parameter on the volumetric flow rate for oil over water case is also shown graphically. For a better understanding of the physical characteristics, the results of shear stress on the lower and upper walls of the channel also have been presented in tabular form.
Anala Subramanyam Reddy, Somasundaram Rajamani, Ali J. Chamkha, Suripeddi Srinivas, and Krishnamurthy Jagadeshkumar
Vilnius University Press
This article studies the magnetohydrodynamic flow of non-Newtonian ferro nanofluid subject to time-dependent pressure gradient between two vertical permeable walls with Cattaneo–Christov heat flux and entropy generation. In this study, blood is considered as non-Newtonian fluid (couple stress fluid). Nanoparticles’ shape factor, Joule heating, viscous dissipation, and radiative heat impacts are examined. This investigation is crucial in nanodrug delivery, pharmaceutical processes, microelectronics, biomedicines, and dynamics of physiological fluids. The flow governing partial differential equations are transformed into the system of ordinary differential equations by deploying the perturbation process and then handled with Runge–Kutta 4th-order procedure aided by the shooting approach. Hamilton–Crosser model is employed to analyze the thermal conductivity of different shapes of nanoparticles. The obtained results reveal that intensifying Eckert number leads to a higher temperature, while the reverse is true for increased thermal relaxation parameter. Heat transfer rate escalates for increasing thermal radiation. Entropy dwindles for intensifying thermal relaxation parameter.
Komal Goyal and Suripeddi Srinivas
Elsevier BV
Medisetty Padma Devi and Suripeddi Srinivas
Vilnius University Press
The MHD oscillatory flow of two immiscible, viscous liquids in a porous channel with heat transfer is the subject of this investigation. The two liquid layers with different viscosities flow in both regions. The analytical expressions for velocity and temperature distribution have been derived by solving the governing flow equations using the regular perturbation method. The effects of various parameters on the velocity, temperature, and Nusselt number have been shown graphically, and numerical values of skin friction and flow rate are presented in tabular form and discussed. According to our analysis, the mass flux reduces as the magnetic field strength rises. While the temperature of the liquid enhances with an increase in the Eckert number and the Prandtl number, the temperature distribution rises with a decrease in the thermal conductivity ratio. To validate the results, the analytical solutions are compared with the fourth-order numerical Runge–Kutta method coupled with the shooting approach, and the results are found to be in excellent agreement.
M. Padma Devi and S. Srinivas
Elsevier BV
Kannaiah Govindarajulu, Anala Subramanyam Reddy, Krishnamurthy Jagadeshkumar, Suripeddi Srinivas, Bangalore Rushi Kumar, and Kuppalapalle Vajravelu
Informa UK Limited
Suripeddi Srinivas, Challa Kalyan Kumar, Satyanarayana Badeti, and Anala Subramanyam Reddy
Springer Nature Singapore
R. Muthuraj, S. Srinivas, and D. Lourdu Immaculate
Springer Nature Singapore
P. Devaki, S. Sreenadh, S. Srinivas, and A. Kavitha
Springer Nature Singapore
M. Padma Devi and Suripeddi Srinivas
SAGE Publications
The present investigation deals with the pulsating magnetohydrodynamic flow of two immiscible conducting incompressible viscous fluids in a channel filled with a porous medium, accounting for the thermal radiation effect. The problem is formulated by employing the balance of linear momentum, energy for both phases. The effects of governing flow parameters on the velocities, temperature, and stresses are studied by the perturbation method. Expressions for velocity and the temperature in both regions are obtained. Graphical results for the velocity, temperature distributions for various emerging parameters, and tabulated results for shear-stress and mass flux are presented and discussed.
D. Rajkumar, A. Subramanyam Reddy, S. Srinivas, and K. Jagadeshkumar
Springer Science and Business Media LLC
D. Rajkumar, K. Govindarajulu, T. Thamizharasan, A. Subramanyam Reddy, K. Jagadeshkumar, S. Srinivas, and A.K. Shukla
Elsevier
S. Rajamani, G. Venkatesan, A. Subramanyam Reddy, A.K. Shukla, K. Jagadeshkumar, and S. Srinivas
Elsevier
Suripeddi Srinivas, Challa Kalyan Kumar, and Anala Subramanyam Reddy
Vilnius University Press
This article aims to inspect the pulsating hydromagnetic slip flow of Casson fluid in a vertical porous channel with heat and mass transfer. The fluid is injected into the channel from the left wall and removed at the opposite wall with the same velocity. The impact of non-Darcy, Soret, and Dufour effects are taken under consideration. The governing partial differential equations (PDEs) are converted to ordinary differential equations (ODEs) using perturbation method and solved by utilizing 4th-order Runge–Kutta (R–K) technique together with shooting method. The impact of dissimilar parameters on flow, heat and mass transfer characteristics are displayed and discussed.