Author
Karaiyan Arul Prakash
Bio: Karaiyan Arul Prakash is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Finite element method & Heat transfer. The author has an hindex of 2, co-authored 3 publications receiving 8 citations.
Papers
More filters
TL;DR: In this article, the role of three dimensional flow structures, horseshoe vortex and counter rotating vortex pair in overall heat transfer distribution is examined, and a parametric study is performed to analyze the performance of jets in cross flow for various Reynolds numbers (Re = 100, 250, 500) and velocity ratios (VR = 1.0, 5.0 and 10.0).
Abstract: ABSTRACT The objective of this study is to predict fluid flow and thermal characteristics associated with forced convection cooling of an array of heat sources mounted in a three-dimensional duct by impinging jets in the presence of cross flow. The equations governing fluid flow and heat transfer are solved using Streamline Upwind / Petrov - Galerkin based finite element method. The role of three dimensional flow structures, horseshoe vortex and counter rotating vortex pair in overall heat transfer distribution is examined. A parametric study is performed to analyze the performance of jets in cross flow for various Reynolds numbers (Re = 100, 250, 500) and velocity ratios (VR = 1.0, 5.0, 10.0). It is observed that with the increase in velocity ratio, the enhancement of heat transfer from heat sources occurs due to increase in the dominance of jet flow accompanied by an unfavorable reduction in heat transfer owing to the increase in size of horseshoe vortex. From numerical studies, it can be concluded that VR = 5.0 exhibits higher overall surface averaged Nusselt number (51.7% over VR = 1.0 and 44.1% over VR = 10.0 for Re = 500) compared to other velocity ratios considered in this study.
9 citations
TL;DR: In this article, numerical studies on fluid flow and heat transfer through a two-dimensional 180-degree sharp bend are performed using an in-house code based on streamline upwind Petrov-Galerkin finite element meth.
Abstract: Numerical studies on fluid flow and heat transfer through a two-dimensional 180-degree sharp bend are performed using an in-house code based on streamline upwind Petrov-Galerkin finite element meth...
5 citations
TL;DR: In this article, an in-house finite element method code based on a square configuration of four elliptic cylinders arranged in square configuration was proposed to investigate the flow and heat transfer characteristics of the four cylinders.
Abstract: Fluid flow and heat transfer characteristics past four elliptic cylinders arranged in square configuration are numerically investigated in this study. An in-house finite element method code based o...
3 citations
Cited by
More filters
TL;DR: In this article, the authors investigated the fluid flow and heat transfer behaviors of jet impingement in cross-flow modified by a vortex generator pair (VGP), and they demonstrated that the heat transfer on the target wall is dominated by the wall-normal velocity of the impingements and the turbulent kinetic energy, rather than the streamwise velocity along the crossflow direction.
23 citations
TL;DR: In this article, numerical studies on fluid flow and heat transfer through a two-dimensional 180-degree sharp bend are performed using an in-house code based on streamline upwind Petrov-Galerkin finite element meth.
Abstract: Numerical studies on fluid flow and heat transfer through a two-dimensional 180-degree sharp bend are performed using an in-house code based on streamline upwind Petrov-Galerkin finite element meth...
5 citations
TL;DR: In this article, an in-house finite element method code based on a square configuration of four elliptic cylinders arranged in square configuration was proposed to investigate the flow and heat transfer characteristics of the four cylinders.
Abstract: Fluid flow and heat transfer characteristics past four elliptic cylinders arranged in square configuration are numerically investigated in this study. An in-house finite element method code based o...
3 citations
TL;DR: In this article, numerical investigation on the flow field structure of a hollow cone spray injected transversely into a confined crossflow is presented, and the unsteady turbulent flow is predicted by a...
Abstract: In this paper, numerical investigation on the flow field structure of a hollow cone spray injected transversely into a confined crossflow is presented. The unsteady turbulent flow is predicted by a...
2 citations
TL;DR: In this article , the Runge-Kutta scheme of the fourth-order (shooting technique) method with the assistance of MAPLE software is used to solve a stretching cylinder.
Abstract: In this article, we have inspected multiple slippery consequences along a stretching cylinder. Brownian migration along with thermophoresis is clutched together with an external heat source. Magnetic influence is considered perpendicular to the cylinder. Standard flow systems are transfigured to ordinary differential equations by well‐qualified similarity transformations. They are solved by the Runge–Kutta scheme of the fourth‐order (shooting technique) method with the assistance of MAPLE software. The entire simulation is done with a proper accuracy rate and the upshots are portrayed by graphs and tables. All results are compared under no slip and with slip provisions. Augmentation in Reynolds number and magnetic parameter uprise the velocity lines and the slip effect reduces the magnitude decently. The thermal jump effect reduces the magnitude of the heat transfer rate. The solutal slip effect decreases the concentration boundary layer for magnetic and Brownian migration specifications. Approximately 6.69% and 6.79% drop in Nusselt number is spotted for Brownian migration and thermophoresis parameters. The external heat source parameter brings out 14.98% inflation in the Nusselt number significantly.
1 citations