• Dr Savithri S 
  • Chief Scientist / Head
  • ssavithri@niist.res.in
  • 0471-2515264(Off)     9446183238

  • Manju M.S, and S. Savithri, 2012, Three Dimensional CFD simulation of pneumatic coal injection in a direct reduction rotary kiln, Fuel, 102, 54-64.
  • P. Ranganathan and Savithri S. 2011. Investigations on hydrodynamics and mass transfer in gas-liquid stirred reactor using computational fluid dynamics, Chemical Engineering Science 66, 3108-3125.
  • Syed Ubaid Ahmed, Panneerselvam Ranganathan, Ashok Pandey, and Savithri S ,2010. Computational fluid dynamics modeling of gas dispersion in multi impeller bioreactor, Journal of Bioscience and Bioengineering 109(6), 588–597.
  • Ani K John, Savithri S., Vijayalakshmi K. P., and Suresh C.H. 2010. Density functional theory study of gas phase hydrolysis of Titanium Tetrachloride, Bulletin of the Chemical Society of Japan 83(9)1030-1036.
  • Panneerselvam, R., Savithri, S., Surender, G.D., 2009. CFD simulation of solid suspension in gas-liquid-solid mechanically agitated contactor. Industrial Engineering and Chemistry Research 48, 1608-1620.
  • Panneerselvam, R., Savithri, S., Surender, G.D., 2009. CFD simulation of hydrodynamics gas-liquid-solid fluidised bed reactor. Chemical Engineering Science 64, 1119-1135.
  • Panneerselvam, R., Savithri, S., Surender, G.D., 2008. CFD modeling of gas-liquid-solid mechanically agitated contactor. Chemical Engineering Research and Design 86 1331-1334.
  • Roschen Sasikumar, Michael J Walker, S Savithri and Suresh Sundarraj, Initiation of microporosity from pre-existing bubbles: a computational study, Modelling Simul. Mater. Sci. Eng. 16 (2008)
  • S. Savithri, Subha K, Sasidharan & V. Syam, Assessment of computational models for laminated composite plates, Int. J. Comput. Methods 4, 633-644, 2007.
  • Panneer Selvam, S. Savithri & G.D. Surender, CFD based investigations on hydrodynamics and energy dissipation due to solid motion in liquid fluidized bed, Chemical Engineering Journal, 132(1-3), 159-171, 2007.
  • P.J.Babu, S. Savithri, U.T.S. Pillai, B.C. Pai., Micromechanical modeling of hybrid composites, Polymer, 46(18),7478-7484, 2005.
  • Ani. K. John, S. Savithri, and G.D. Surender , Characteristics of TiO2 nanoparticles synthesized through low temperature aerosol process, International journal of Aerosol & Air quality Research, vol.5(1),2005,1-14.
  • Prem E. J. Babu, S. Savithri, U.T.S. Pillai and B.C. Pai , Micromechanical Modeling of Hybrid Metal Matrix Composites” , Proc. of the 4th Asian Australasian Conference on Composite Materials (ACCM- 4) held at Sydney, Australia 06 – 09 July, 2004 pp. 420-27.
  • Prem E. J. Babu, U.T.S. Pillai, S. Savithri and B.C. Pai, Mathematical Modeling of Steady State Creep in Metal Matrix Composites”, Int. J. Minerals Metals and Materials , 58(2-3),2005, 287-290.
  • Prem E. J. Babu, S. Savithri, U.T.S. Pillai and B.C. Pai Application of Generalized Method of Cells Principle to Particulate Reinforced Metal Matrix Composites, , Mater. Metall. Trans. B., vol. 35B,2004,1029-1039.
  • Prem E. J. Babu, S. Savithri, U.T.S. Pillai and B.C. Pai, A Semi-Analytical approach to model Metal Matrix Composites, Trans. Indian. Inst. Metals, 56(6), 2003, 601-605.
  • G.D. Surender, S. Savithri, K.S. Geetha, K.R. Prasad, & P.S.T Sai, Reactor and reaction engineering aspects in Titanium mineral beneficiation: experimental and modelling studies, Metals Materials and Processes, 13, 2001, 191-204.
  • Roschen Sasikumar, Elizabeth Jacob , S. Savithri, Manoj Kumar and M. Ravi, Computer Simulation of Solidification processes, Metals Materials and Processes, 13, 2001, 361-368.
  • Roschen Sasikumar, Markus Rettenmayr, S. Savithri, Hans Eckart Exner, A model for the formation of interdentritic cavities from pores pre-existing in the melt, Z. Mettallkd, 92,2001,158-162.
  • S. Savithri and G. D. Surender,” Determination of gasification reactivity parameters by temperature programmed reaction analysis”, 7th Australian Coal Science Conference Gippsland, Australia, December 2-4 (1996), 313-319.
  • T.R. Sivakumar and S. Savithri, A new nonlinear integration formula for ODE’s, J. of Computational and Applied Mathematics, 67, 1996, 291-299.
  • K. Sathesh Kumar, S. Savithri and T.R. Ramamohan, Chaotic dynamics and rheology of periodically forced slender bodies in simple shear flow, Jpn. J. Appl. Phys. Part 1, 35, 1996, 5901-5908.
  • S. Savithri and T.R. Ramamohan and M.I. James, Corringendum: “Hsu and Ganatos(1989)”, J. Fluid Mech., 290, 1995, 405.
  • T .R. Ramamohan, S. Savithri, R. Sreenivasan and C. C.S. Bhat, Chaotic dynamics of periodically forced slender body in simple shear flows, Phys. Letters A., 190, 1994, 273 – 278.
  • S. Savithri and T.R. Ramamohan, Corrigendum : “Liron, N and Barta, E, 1993, J. Fluid Mech., 238, 579-598”, J. Fluid Mech., 278, 1994, 407.
  • S. Savithri and T.K. Varadan, Nonlinear bending analysis of symmetric cross-ply laminates, International J. of Nonlinear Mechanics, 28, 1993, 1-12.
  • S. Savithri and T,K, Varadan, Nonlinear bending analysis of shear deformable plates, J. of Aeronautical Society of India, 44, 1992,361-367.
  • S. Savithri and T.K. Varadan, Comparison of various refined theories for the analysis of angle ply laminates, J. of Aeronautical Society of India, 44, 1992, 145 – 151.
  • S. Savithri and T.K. Varadan, Bending analysis of angle-ply laminates, J, of Aeronautical Society of India, 43, 1992, 119-123.
  • S. Savithri and T.K. Varadan, A simple higher order theory for homogeneous plates, Mechanics Research Communications, 19, 1992, 161-167.
  • S. Savithri and T.K. Varadan, Laminated plates under uniformly distributed and concentrated loads, ASME J. of Applied Mechanics, 28, 1992, 211 – 214.
  • S. Savithri and T.K. Varadan, On bending deformation of thick homogeneous clamped plates, J. of Aeronautical Society of India, 42, 1991, 193 – 196.
  • S. Savithri and T.K. Varadan, Comments on ‘Rayleigh Ritz vibration analysis of thick plates by a simple higher order theory , J. of sound and vibration, 140, 1990, 348.
  • S. Savithri and T.K. Varadan, Free vibration and stability of cross-ply laminated plates, J. of sound and vibration, 141, 1990, 516 – 520.
  • S. Savithri and T.K. Varadan, Accurate bending analysis of laminated orthotropic plates, AIAA J., 28, 1990, 1842 –1845.

Book Chapter

    Computational Flow modelling of multiphase mechanically agitated reactors, Panneerselvam. R, Savithri. S, book chapter in Computational Fluid Dynamics, edited by Hyoung Woo Oh, Intech publishers, 2010

Conference proceedings

  • CFD modelling of pneumatic coal injection process in a rotary kiln reactor, XII Internal Conference on Mineral Processing Technology, MPT 2011, 20-22nd October, 2011.
  • Investigations on Hydrodynamics and Mass Transfer in Gas-liquid Stirred tank Reactor using Computational Fluid Dynamics, Gas-Liquid and Gas-Liquid and Solid Reaction engineering Congress (GLS -10), Universidade do Minho, Departamento de Engenharia Biológica, Brago, Portugal during June 26-29th June 2011.
  • Computer simulation of steady state Ilmenite Metallisation process in a rotary kiln reactor, ICMF , GEC, Thrissur, February, 2011.
  • In situ synthesis of silica coated titania nano particles in an aerosol reactor, International conference on synthesis, characterization, consolidation and modelling of nanomaterials, PSG college of Technology, Coimbatore, 5 – 6, march 2010.
  • Manju M.S. & Savithri, S Modeling of pneumatic coal injection
    in a rotary kiln reactor , 22nd Kerala Science Congress, Kerala Forest Research Institute (KFRI), Peechi, Thrissur from 28th to 31st January 2010.
  • Manju M.S & Savithri, S., Kinetics of the Carbothermal Reduction of Ilmenite: Grain Pellet Model, COMSOL 2009 conference, 13-14th Nov. 2009.
  • Panneer Selvam R & Savithri, S., CFD simulation of gas-liquid-solid fluidized bed reactor using population balance, MPT 2009, Oct.28-30th, 2009, Bhubaneswar.
  • Panneerselvam.R, Savithri.S, Surender.G.D., CFD modelling of gas-liquid-solid mechanically agitated contactor, Sixth Symposium on mixing in Industrial Process Industries – ISMIP VI , Canaada, Aug.17-21, 2008.
  • Panneerselvam. R, Savithri.S, Surender.G.D, CFD based Investigation of Solid Suspension in Liquid-Solid and Gas-Liquid-Solid Agitated Contactors. Proceedings of CHEMCON-07, Dec 2007.
  • Panneerselvam. R, Savithri.S, Surender.G.D, CFD based Investigation of Solid Suspension in Liquid-Solid and Gas-Liquid-Solid Agitated Contactors. Ansys India Conference on Elevating Innovation, Oct 2007.
  • Panneerselvam. R, Thomas, J.M, Savithri.S, Surender.G.D, Hydrodynamics of Gas-Liquid-Solid Three Phase Fluidised Bed – A CFD Study, Proceedings of CHEMCON-06, Dec 2006.
  • Panneerselvam. R, Savithri.S, Surender.G.D, CFD Simulations of Suspension of Solids in a Stirred Reactor, Ansys India Conference on Engineering Innovation 2006, Dec 2006, Bangalore.
  • S. Savithri, Ani. k. John. , G.D. Surender, “Simulation of TiO2 nano particle synthesis in an aerosol reactor through low temperature vapor phase hydrolysis”, presented at the 4th Asian Aerosol Conference held at Bombay during Dec. 2005.
  • R. Panneer SElvam, S. Savithri, G.D. Surender,“Local hydrodynamic behaviour of gas-liquid-solid three phase slurry reactors”, presented at the 2005 ANSYS INDIA Conference held at Bangalore during 29th-30th Nov. 2005.
  • Prem E. J. Babu, S. Savithri, U.T.S. Pillai and B.C. Pai, “Analysis of a Smart Composite Laminates using A Coupled Electro-Thermo-Elastic Formulation”, Proc. of NMD-ATM-2005, IIT Madras, Chennai from 14-17 November 2005.
  • Prem E. J. Babu, S. Savithri, U.T.S. Pillai and B.C. Pai “Evaluation of Effective Material Properties of Nano-composites using A Nanoscale Analysis” Proc. Int. Conf. on Nano Sci. & Tech. Bejing China from June 9-11, 2005.
  • Prem E. J. Babu, T.P.D. Rajan, S. Savithri, U.T.S. Pillai and B.C. Pai, Computer Simulation of Particle Gradient Formation in a Functionally Gradient Material during Centrifugal Casting”, Proc. of the 53rd Indian Foundry Congress, Kolkata, January 21-23, 2005.
  • Prem E. J. Babu, T.P.D. Rajan, S. Savithri, U.T.S. Pillai and B.C. Pai, Theoretical Analysis and Computer Simulation of the Particle Gradient Distribution in a Centrifugally Cast Functionally Gradient Material, Proc. Int. Symp. on Research Students (ISRS) -2004, held at IIT, Chennai from 20-22 Dec. 2004.
  • R.Panneerselvam, S.Savithri, G.D. Surender ,Multiphase Flow Modeling of the hydrodynamics of Liquid –Solid Fluidized Bed, ANSYS-CFX Users’ meet, Nov.2004.
  • Simulation of mixing & segregation in tumbling mixers through DEM, V.Hema, V.Subashini, K.K. Usha, S. Savithri, G.D. Surender, NMD ATM-2004 from 17-19 Nov. 2004, Trivandrum.
  • R.Panneerselvam, S.Savithri, G.D. Surender Multiphase Flow Modelling of Liquid –Solid Fluidized Bed for Heavy Mineral Processing, Proc of National seminar on Value Addition to Beach Sand Minearls-2004.
  • V.Subashini, K.Ganesh Palappan, S.Savithri, G.D.Surender, Computer Simulation of Pneumatic Coal Injection in a direct reduction rotary kiln, Proc of National seminar on Value Addition to Beach Sand Minearls-2004.
  • Prem E. J. Babu, T.P.D. Rajan, S. Savithri, U.T.S. Pillai and B.C. Pai, Engineering a Desired Gradient in FGM by Means of Computer Simulation, NMD ATM-2004 from 17-19 Nov. 2004, Trivandrum.
  • Manju J. Nair, S. Savithri , U. T. S. Pillai and B. C. Pai “Micromechanical Analysis of Instantaneous Behavior of Aluminium based Metal Matrix Composites” Proc. NMD ATM 2003, 14-16 Nov. 2003, Kolkota, India.
  • Prem E. Babu, S. Savithri , U. T. S. Pillai and B. C. Pai, Micromechanical Analysis of CTE in Metal Matrix Composites, Proc. NMD ATM 2003, 14-16 Nov. 2003, Kalkota, India.
  • Prem E. J. Babu, U.T.S. Pillai, S. Savithri and B.C. Pai, “Mathematical Modeling of Steady State Creep in Metal Matrix Composites”, , Proc of the 4th Conf. on Creep, Fatigue and Creep Fatigue Interaction held at IGCAR, Kalpakkam, 8-10 October, 2003, pp. C21-C26.
  • Prem E. J. Babu, S. Savithri, U.T.S. Pillai and B.C. Pai, A Semi-Analytical approach to model Metal Matrix Composites”, Presented in the Conference of Research Scholars on Materials Science and Engineering (CRSMSE -03) held at Indian Institute of Technology, Kharagpur, during August 30-31, 2003. Awarded Best Technical Paper Presentation Award.
  • Prem. E. J. Babu, S. Savithri , U. T. S. Pillai and B. C. Pai , 3D Micro Mechanical Model for Predicting the Thermo Elastic Behavior of Particulate Reinforced Aluminium Matrix composites, Proc. of the Int. Conf. Aluminium held at New Delhi, 23-25 April 2003, p. 315-322.
  • V. Hema, S. Savithri and G.D. Surender, Transition behaviour of solids motion in a rotating cylinder through Discrete Element Simulation, Proceedings of the International Seminar on Mineral Processing Technology, MPT-2003, 138-143, 2003.
  • Savithri & G.D. Surender, “Multiphase flow modelling of liquid solid fluidised beds” presented in the first CFX user’s conference, India during 2nd-5th December 2002, Bangalore.
  • S. Savithri, Prem E.J. Babu & U.T.S. Pillai, “ Role of particles on the elastic/plastic behaviour of metal matrix composites” presented during the Light metals and composites for strategic and societal needs LMCSSN-2002 during 22-23rd October 2002.
  • Savithri, Ani. K. John and G.D. Surender, Modeling of Titania nano particles synthesis through vapor phase hydrolysis of Titanium Tetra Cholride, presented at National seminar on Processing Characterization and Application of Light Structural Materials for Frontier Sectors, held at Trivandrum during February 14-15, 2002.
  • Prem . E. J. Babu, S. Savithri, U.T.S Pillai and B.C. Pai, Computational Modeling of continuous fiber reinforced metal matrix composites, presented at National seminar on Processing Characterization and Application of Light Structural Materials for Frontier Sectors, held at Trivandrum during February 14-15, 2002. Won the second best paper award.
  • V. Hema, S. Savithri and G.D. Surender, Numerical Simulation of Granular Material Motion in a Rotating Cylinder” Proceedings of the International Seminar on Mineral Processing Technology, MPT-2002, 307-308, 2002.
  • S. Savithri, Dr.G.D. Surender and Ani K. John, “Aerosol dynamics modelling synthesis of Titania nanoparticles through hydrolysis of Titanium Tetrachloride” in proceedings of the IASTA-2000 conference at BARC, Bombay during Feb2-4, 2000.
  • S. Savithri, K.S. Kumar and T.R. Ramamohan, Erratum : Chaotic rheological parameters of periodically forced suspensions of slender rods in simple shear flow, J. Rheol., 1998, 995.
  • K. Satheeshkumar, S. Savithri and T.R. Ramamohan, Review of chaotic dynamics of suspensions of slender rods in simple shear flow, C4, Dynamics of complex fluids (Eds: M.J.Adams, R.A. Mashelkar, J.R.A.Pearson, A.R. Rennie), Imperial college press, The Royal Society, 1998, 286 – 300.
  • K. Bhaskar, S. Savithri and T.K. Varadan, Analysis of thick laminated shells and plates, Indo-US workshop on “composites for aerospace applications”, Bangalore India, July, 1990.
  • S. Savithri and T.K. Varadan, Static and dynamic analysis of rectangular plates of arbitrary thickness, 21st Midweteern Mechanics conference, Michigan, U.S.A., Aug. 1989.
  • S. Savithri, A simple Mathematical model to analyse thick plates, National Seminar on Aerospace structures, Advances and Future trends, Trivandrum, India, Sept., 1988.

Technical reports

  • S. Savithri and G.D. Surender, Steady state simulation of ilmenite metallisation in rotary kiln : Part A : Mass and energy flows, Technical report SR-2, 1994.
  • S. Savithri and G.D. Surender, Steady state simulation of ilmenite metallisation in rotary kiln : Part B : Discharge end coal injection, Technical report SR-3, 1996.