Prof. T Sundararajan Sundararajan - Academia.edu (original) (raw)
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Papers by Prof. T Sundararajan Sundararajan
2010 14th International Heat Transfer Conference, Volume 7, 2010
The hydrodynamics of molten metal jet in a coolant pool is characterized by the presence of compl... more The hydrodynamics of molten metal jet in a coolant pool is characterized by the presence of complex and diverse fluid structures whose formation is facilitated by various modes of instabilities acting on the fluid-fluid interface and the bulk material. The large spectrum of scales involved in these processes and the related non-linearities cloud a clear understanding of the associated physical phenomena. In order to overcome these difficulties, a numerical model has been developed in the current work, which aims to simulate the hydrodynamics, fragmentation and solidification of a molten metal jet in the coolant pool. The work uses an axisymmetric flow solver with the Volume of Fluid (VOF) interface tracking model to evaluate the macro features of the molten metal jet dynamics and to predict the evolution of interfacial instabilities. At the same time, the phenomena at the micro scale is predicted by a Lagrangian particle tracking model that is used to capture the dynamics and the he...
Numerical Heat Transfer, Part A: Applications, 2010
A finite-volume-based incompressible flow algorithm on Cartesian grid is presented for the simula... more A finite-volume-based incompressible flow algorithm on Cartesian grid is presented for the simulation of evaporation phenomena in a falling liquid film under low wall superheat con-ditions. The model employs the PLICVOF method to capture the free surface evolution, and the continuum ...
Nuclear Engineering and Design, 2011
Nuclear Engineering and Design, 2005
Metallurgical Transactions B, 1989
A simultaneous heat and mass transfer model has been developed for the multiheart roasters, consi... more A simultaneous heat and mass transfer model has been developed for the multiheart roasters, considering dead roasting of chalcopyrite as a typical roasting reaction. Various mass and energy balances have been worked out during the development of this model yielding coupled nonlinear partial differential equations with highly complex boundary conditions. These equations have been solved numerically using a line-by-line finite
Journal of Nanoparticle Research, 2009
Journal of Computational Physics, 2009
A new Quadratic Spline based Interface (QUASI) reconstruction algorithm is presented which provid... more A new Quadratic Spline based Interface (QUASI) reconstruction algorithm is presented which provides an accurate and continuous representation of the interface in a multiphase domain and facilitates the direct estimation of local interfacial curvature. The fluid interface in each ...
International Journal of Heat and Mass Transfer, 1992
International Journal of Heat and Mass Transfer, 1999
International Journal of Computational Fluid Dynamics, 2009
The present work describes a numerical procedure to simulate the development of hydrodynamic entr... more The present work describes a numerical procedure to simulate the development of hydrodynamic entry region in a gravity-driven laminar liquid film flow over an inclined plane. It provides a better insight into the physics of developing film in entry region. A novel numerical approach is proposed which has the potential to provide solutions for the complex physics of liquid film
International Journal for Numerical Methods in Fluids, 2011
ABSTRACT
Communications in Numerical Methods in Engineering, 2009
Heat and Mass Transfer, 2002
A collocated, non-orthogonal grid based finite volume technique has been applied for investigatin... more A collocated, non-orthogonal grid based finite volume technique has been applied for investigating the two dimensional natural convective flow and heat transfer around a heated cylinder kept in a square enclosure. The effects of different enclosure wall thermal boundary conditions, fluid Prandtl number and the ratio between enclosure and cylinder dimensions (aspect ratio) upon the flow and thermal features, have
Combustion Theory and Modelling, 2009
... Combust. Inst., 26 (1996), pp. 16971704. [25] P. Balakrishnan, T. Sundararajan and R. Natara... more ... Combust. Inst., 26 (1996), pp. 16971704. [25] P. Balakrishnan, T. Sundararajan and R. Natarajan, Interference effects during burning of tandem porous spheres in mixed convective environment, AIAA Journal, 38 (2000), pp. 18891898. ...
The Canadian Journal of Chemical Engineering, 1993
The slow non‐Newtonian (inelastic) flow through packed beds of mono‐size spherical particles has ... more The slow non‐Newtonian (inelastic) flow through packed beds of mono‐size spherical particles has been simulated by solving the equations of motion numerically. The inter‐particle interactions have been modelled by using a simple cell model. Theoretical estimates of pressure, friction and total drag coefficients as function of the pertinent physical (l≥n≥ 0.2; 0.3 ≤ e ≤ 0.5) and kinematic parameters (0.01 ≤ '≤ 100) for a fixed value of Reynolds number {Re = 0.001) have been obtained. The theoretical predictions reported herein have been validated using the suitable experimental results available in the literature, and the importance of including the zero shear viscosity in analyses for the creeping flow problems is convincingly demonstrated.
Bulletin of Materials Science, 2008
Annals of Nuclear Energy, 2014
International Communications in Heat and Mass Transfer, 2011
Steady flow of liquid sodium over a bundle of heat generating hexagonal subassemblies has been in... more Steady flow of liquid sodium over a bundle of heat generating hexagonal subassemblies has been investigated. The cross flow pressure drop and heat transfer are characterized using the general purpose CFD code STAR-CD. Analysis has been carried out for both laminar and ...
2010 14th International Heat Transfer Conference, Volume 7, 2010
The hydrodynamics of molten metal jet in a coolant pool is characterized by the presence of compl... more The hydrodynamics of molten metal jet in a coolant pool is characterized by the presence of complex and diverse fluid structures whose formation is facilitated by various modes of instabilities acting on the fluid-fluid interface and the bulk material. The large spectrum of scales involved in these processes and the related non-linearities cloud a clear understanding of the associated physical phenomena. In order to overcome these difficulties, a numerical model has been developed in the current work, which aims to simulate the hydrodynamics, fragmentation and solidification of a molten metal jet in the coolant pool. The work uses an axisymmetric flow solver with the Volume of Fluid (VOF) interface tracking model to evaluate the macro features of the molten metal jet dynamics and to predict the evolution of interfacial instabilities. At the same time, the phenomena at the micro scale is predicted by a Lagrangian particle tracking model that is used to capture the dynamics and the he...
Numerical Heat Transfer, Part A: Applications, 2010
A finite-volume-based incompressible flow algorithm on Cartesian grid is presented for the simula... more A finite-volume-based incompressible flow algorithm on Cartesian grid is presented for the simulation of evaporation phenomena in a falling liquid film under low wall superheat con-ditions. The model employs the PLICVOF method to capture the free surface evolution, and the continuum ...
Nuclear Engineering and Design, 2011
Nuclear Engineering and Design, 2005
Metallurgical Transactions B, 1989
A simultaneous heat and mass transfer model has been developed for the multiheart roasters, consi... more A simultaneous heat and mass transfer model has been developed for the multiheart roasters, considering dead roasting of chalcopyrite as a typical roasting reaction. Various mass and energy balances have been worked out during the development of this model yielding coupled nonlinear partial differential equations with highly complex boundary conditions. These equations have been solved numerically using a line-by-line finite
Journal of Nanoparticle Research, 2009
Journal of Computational Physics, 2009
A new Quadratic Spline based Interface (QUASI) reconstruction algorithm is presented which provid... more A new Quadratic Spline based Interface (QUASI) reconstruction algorithm is presented which provides an accurate and continuous representation of the interface in a multiphase domain and facilitates the direct estimation of local interfacial curvature. The fluid interface in each ...
International Journal of Heat and Mass Transfer, 1992
International Journal of Heat and Mass Transfer, 1999
International Journal of Computational Fluid Dynamics, 2009
The present work describes a numerical procedure to simulate the development of hydrodynamic entr... more The present work describes a numerical procedure to simulate the development of hydrodynamic entry region in a gravity-driven laminar liquid film flow over an inclined plane. It provides a better insight into the physics of developing film in entry region. A novel numerical approach is proposed which has the potential to provide solutions for the complex physics of liquid film
International Journal for Numerical Methods in Fluids, 2011
ABSTRACT
Communications in Numerical Methods in Engineering, 2009
Heat and Mass Transfer, 2002
A collocated, non-orthogonal grid based finite volume technique has been applied for investigatin... more A collocated, non-orthogonal grid based finite volume technique has been applied for investigating the two dimensional natural convective flow and heat transfer around a heated cylinder kept in a square enclosure. The effects of different enclosure wall thermal boundary conditions, fluid Prandtl number and the ratio between enclosure and cylinder dimensions (aspect ratio) upon the flow and thermal features, have
Combustion Theory and Modelling, 2009
... Combust. Inst., 26 (1996), pp. 16971704. [25] P. Balakrishnan, T. Sundararajan and R. Natara... more ... Combust. Inst., 26 (1996), pp. 16971704. [25] P. Balakrishnan, T. Sundararajan and R. Natarajan, Interference effects during burning of tandem porous spheres in mixed convective environment, AIAA Journal, 38 (2000), pp. 18891898. ...
The Canadian Journal of Chemical Engineering, 1993
The slow non‐Newtonian (inelastic) flow through packed beds of mono‐size spherical particles has ... more The slow non‐Newtonian (inelastic) flow through packed beds of mono‐size spherical particles has been simulated by solving the equations of motion numerically. The inter‐particle interactions have been modelled by using a simple cell model. Theoretical estimates of pressure, friction and total drag coefficients as function of the pertinent physical (l≥n≥ 0.2; 0.3 ≤ e ≤ 0.5) and kinematic parameters (0.01 ≤ '≤ 100) for a fixed value of Reynolds number {Re = 0.001) have been obtained. The theoretical predictions reported herein have been validated using the suitable experimental results available in the literature, and the importance of including the zero shear viscosity in analyses for the creeping flow problems is convincingly demonstrated.
Bulletin of Materials Science, 2008
Annals of Nuclear Energy, 2014
International Communications in Heat and Mass Transfer, 2011
Steady flow of liquid sodium over a bundle of heat generating hexagonal subassemblies has been in... more Steady flow of liquid sodium over a bundle of heat generating hexagonal subassemblies has been investigated. The cross flow pressure drop and heat transfer are characterized using the general purpose CFD code STAR-CD. Analysis has been carried out for both laminar and ...