Dr. M. Ramasubba Reddy


Author image

About Me

An experienced teacher cum researcher in the areas of BiomedicaI Instrumentation, Signal and Image Processing with B.Tech. in Electronics and Communication Engineering and Ph.D. in Biomedical Signal processing is currently working as professor of Biomedical Engineering at the Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai, India.

Head of Laboratory, Biomedical Engineering Group

Department of Applied Mechanics

Indian Institute of Technology

Chennai - 600036, INDIA.

+91-44 2257 4057

+91 44 2257 4052


Research Interest

  • Biomedical Instrumentation
  • Biomedical Imaging systems
  • Biomedical Signal Processing

Areas of Specialization

  • Turbulent flows and modelling
  • Bluff body Aerodynamics
  • CFD

Latest Papers

  • R.Malathi and M.R.S.Reddy, Arrhythmia studies using computational model of ventricular tissue, Feb.2008.Biophysical Journal, 94, pp. 285.


  • 1991
    Faculty of Engineering, IIS, Bangalore, India

    Title of Thesis : Digital Models for Analysis and Synthesis of ECG

    Topic of Ph.D.: Delineation of component waves, P, QRS and T in a given ECG signal by modeling, filtering and nonlinear transform techniques.

  • 1982
    Electronics and Communication Engineering

    Jawaharlal Nehru Technological University, Hyderabad, India

Courses Taught

  • AM110

    Engineering Mechanics

  • AM253

    Foundation of Fluid Mechanics

  • AM257

    Introduction to Fluid Mechanics

  • AM564

    Turbulence Modelling


  • 49. P.Tarkes Dora, K.Ramesh, Puneet Mahajan and  S.Vengadesan, 'Numerical Modeling of Cooling Stage of Glass Molding Process Assisted by CFD and Measurement of Residual Birefringence', Published online Jl. American Ceramic Society, DOI: 10.1111/jace.14000, Sep.'2015.
  • 48. Shaafi Mohamed, and  S.Vengadesan, 'Wall proximity effects on effectiveness of upstream control rod', Jl. Fluids Struct., Vol.49, pp.112-134, 2014.
  • 47. P. Immanuvel, K. Arul Prakash and  S.Vengadesan, 'Onset of laminar separation and vortex shedding in flow past unconfined elliptic cylidners', Phys. Fluids, Vol. 26, pp.023601-1 - 023601-15, 2014.
  • 46. P. Immanuvel, K. Arul Prakash and  S.Vengadesan, 'Numerical Analysis of Fluid flow past Elliptic Cylinders : A Parametric study', Int. Jl. for Numerical Methods in Heat and Fluid Flow, Vol.24,n7, pp.1570-1594, 2014.
  • 45. Shaafi Mohamed, and  S.Vengadesan, 'Heat transfer characteristics of flow over circular cylinder with an upstream control rod in wall viscinity', Numerical Heat Transfer - Part A, Vol.65, pp.1-25, 2014.
  • 44. P. Immanuvel, K. Arul Prakash and  S.Vengadesan, 'Forced Convection Heat Transfer from unconfined isothermal and influx elliptic cylinders', Numerical Heat Transfer - Part A, Vol. 64, pp.648-573, 2013.
  • 43. S. Kalyana Raman, K. Arul Prakash and  S.Vengadesan, 'Effect of Axis ratio on fluid flow around Elliptic Cylinders - A Numerical Study', ASME Jl. of Fluids Engineering , Vol.135, 111201-1 to 111201-10, Nov., 2013.
  • 42. Shereena,  S.Vengadesan, S.K.Bhattacharyya and  V.G. Idichandy , 'A CFD study of drag reduction in axisymertric underwater vehicles using air jets', Engineering Applications in Computational Fluid Mechanics , Vol.7, n2, pp.193-202, March, 2013.
  • 41. Sreekar Gomatam,  S.Vengadesan and  S.K.Bhattacharyya, 'Numerical Simulations of flow past an autonomous underwater vehicle at various drift angles', Jl. of Naval Architecture and Marine Engineering, Vol.9, n2, pp.135-152, Dec., 2012.
  • 40. S. Kalyana Raman, K. Arul Prakash and  S.Vengadesan, 'Numerical study of mixed convection around an elliptic cylinder using immersed boundary method', Int J Adv Eng Sci Appl Math, Vol.4, n3, pp.173-178, 2012.
  • 39. M.B.Shyam Kumar and  S.Vengadesan, 'Influence of rounded corners on flow interference due to square cylinders using immersed boundary method', ASME Jl. of Fluids Engineering, Vol.134, 091203-1 – 091203-23, June, 2012.
  • 38. J. Poornima and  S.Vengadesan, 'Numerical simulation of a bubble transport in a bifurcating channel – a preliminary study', ASME J. of Biomechanical Engineering , Vol.134, 081005-1 – 081005-10, August, 2012.
  • 37. S. Kalyana Raman, K. Arul Prakash and  S.Vengadesan, 'Influence of rounded corners on flow interference due to square cylinders using immersed boundary method', Numerical Heat Transfer - Part A , Vol.62, pp.639-658, 2012.
  • 36. Y.Sudhakar and  S.Vengadesan , 'Vortex Shedding Characteristics of a cicular cylinder with an oscillating splitter plate', Computers and Fluids , Vol. 53, pp. 40 - 52, 2012.
  • 35. R.Sakthivel,  S.Vengadesan and S.K.Bhattacharyya, 'Application of non-linear k-ε turbulence model in flow simulation over underwater axisymmetric hull at higher angle of attack', Jl. of Naval Architecture and Marine Engineering, Vol. 2, pp.149-163, Dec., 2011.
  • 34. Virag Mishra,   S.Vengadesan and S.K.Bhattacharyya, 'Estimation of Translational added mass of axisymmetric underwater bodies with forward speed using computational fluid dynamics', Journal of Ship Research, Vol. 55, n3, pp.185-195, Sep., 2011.
  • 33. K.Chitra, S.Vengadesan, T.Sundararajan and P.Nithiarasu, "Non Newtonian blood flow study in a model cavopulmonary study", Int. Jl. for Numer. Methods in Fluids, Vol. 66, pp.269-283. 2011.
  • 32. A.Lankadasu and  S.Vengadesan, 'Shear effect on the square cylinder wake transition characteristics', Int. Jl. for Numer. Methods in Fluids, DOI:10.1002/fld.2408, Vol. 67, pp.1115-1134. 2011.
  • 31. C.Sony and  S.Vengadesan, 'Enhanced vortex stability in Trapped Vortex Combustor', Aeronautical Journal, Vol.114, No.115, PP.333-337, March, 2010.
  • 30. A.Lankadasu and  S.Vengadesan, "Large eddy simulation of near wake topology in shear flow", Inter. Jl. for Numerical Methods in Fluids, Vol.64, pp.676-684, 2010.
  • 29.Y.Sudhakar and  S.Vengadesan, 'Functional significance of delayed stall in performance of hovering inclined stroke plane motion', Numerical Heat Transfer – Part A, Vol.58: pp.65-83, January, 2010.
  • 28. M.B.Shyam Kumar and  S.Vengadesan, " Large eddy simulations of flow interferences between two unequal sized square cylinders", Int. Jl. of Computational Fluid Dynamics, Vol.23, No.10, pp.671-686, Dec, 2009.
  • 27. Y.Sudhakar and  S.Vengadesan: " Flight Force production in flapping insect wings in inclined stroke plane kinematics", Computers and Fluids, Vol.58: pp.65-83, 2009.
  • 26. N.Sekarapandian, Y.V.S.S.Sanyasiraju and   S.Vengadesan: "A Novel Semi-Explicit Spatially Fourth Order Accurate Projection Method for Unsteady Incompressible Viscous Flows", Numerical Heat Transfer - Part A, Vol.56, pp.665-684, 2009.
  • 25. A.Lankadasu and  S.Vengadesan, "Influence of inlet shear on the 3-D flow past a square cylinder at moderate Reynolds number", Jl. of Fluids and Structures, (online doi:10.1016/j.jfluidstructs.2009.04.003), Vol.25, pp.889-896, 2009.
  • 24. N.Sekarapandian, Y.V.S.S.Sanyasiraju and  S.Vengadesan, "Compact Finite Difference to Simulate Unsteady phenomena", Journal of Combinatorics, Information & System Sciences, 33, Nos.3-4, pp.231-241, 2008.
  • 23. K.Chitra, S.Vengadesan, T.Sundararajan and  P.Nithiarasu, "An investigation of pulsatile flow in a model cavo-pulmonary vascular system", Communications in Numerical Methods in Engineering, (online doi:10.1002/cnm.1205, Dec.2008), Vol. 25, pp.1061-1083, 2009.
  • 22. P.Selvaganesh and  S.Vengadesan, "Cold Flow analysis of Trapped Vortex Combustor using two equation models", Aeronautical Journal, Vol.112, No.1136, pp.569 - 580, Oct. 2008.
  • 21. T.Ayyappan and  S.Vengadesan,"Three dimensional unsteady simulation of turbulent flow past circular cylinder", Numerical Heat Transfer - Part A: Application, Vol.54, n2, pp.221-234, 2008.
  • 20. A.Lankadasu and  S.Vengadesan, "Onset of vortex shedding in planar shear flow past a square cylinder", Inter. Jl. Heat and Fluid Flow, Vol.29, pp.1054-1059, 2008.
  • 19. G.Seeta Ratnam and  S.Vengadesan, "Performance of Two Equation Turbulence Models For Prediction of Flow and Heat Transfer Over A Wall Mounted Cube", Int. Jl. of Heat and Mass Transfer, Vol.51, n 11-12, pp.2836-2846, June, 2008.
  • 18. T.Ayyappan and  S.Vengadesan, "Influence of staggering angle of a rotating rod on flow past a circular cylinder", ASME J. Fluids Engineering, Vol.130, 0301103-1 to 0301103-11, March, 2008.
  • 17. A.Lankadasu and  S.Vengadesan, "Interference effect of two equal size cylinders in tandem arrangement: with planar shear flow", Inter. Jl. for Numerical Methods in Fluids, (published online, DOI: 10.1002/ftd.1670, Oct, 2007), Vol.57, 1005-1021, 2008.  
  • 16. M.Kumaran and   S.Vengadesan, "Flow characteristics behind rectangular cylinders placed near a wall", Numerical Heat Transfer - Part A: Application, Vol.57, n2, pp.643-660, 2007.
  • 15. S.Vengadesan and  P.Nithiarasu, "Hybrid LES - Review & Assessment", Sadhana, Proc. Academy of Sciences, Vol.32, n5, pp.501-511, 2007.
  • 14 V.Ramesh, S.Vengadesan and  J.L.Narasimhan: "Mean pressure prediction for the case of 3D unsteady turbulent flow past isolated prismatic cylinder", Int. Jl. Wind and Structure, Vol.9, n5, pp.357-368, 2006.
  • 13. V.Ramesh, S.Vengadesan and  J.L.Narasimhan, "3D Unsteady RANS simulation of turbulent flow over bluff body by non-linear model", Int. Jl. for Numerical Methods in Heat and Fluid Flow, Vol.26, n6, pp.660-673, 2006.
  • 12. S.Vengadesan, A.Nakayama and  S.Yokojima, "Collocated finite difference method in general curvilinear coordinates for flows over arbitrary geometry", Jl. of Aerospace Sciences and Technologies., Vol.57, n2, pp.250-258, 2005.
  • 11. S.Vengadesan, E.G.Tulapurkara and  D.Pramod Kumar, "Influence of splitter plate arrangement on flow past rectangular cylinders of different aspect ratios", Jl. of flow visualization & Image processing,Vol.12, n4, pp.409-434, 2005.
  • 10. S.Vengadesan and  B.H.Lakshmana Gowda, "Influence due to arrangement of splitter plate on the flow past a circular cylinder", Jl. of flow visualization & Image processing, Vol.12, n2, pp.137-150, 2005.
  • 9. S.Vengadesan and  A.Nakayama, "Evaluation of LES for flow over bluff body from engineering application perspective", Sadhana, Proc. Academy of Sciences, Vol.30, n1, pp.11-20, 2005.
  • 8. S.Vengadesan, A.Nakayama and  S.Yokojima: "An investigation on the applicability of cartesian grid approach to calculate flow over arbitrary terrian", Indian Jl. of Engg. and Mat. Sci., Vol.11, pp.465-472, 2004.
  • 7. S.N. Vengadesan and  Akihiko Nakayama, "Comparison of calculations of flow past smooth hill using rectangular and boundary-fitted grid", Annual J. of Hydraulic Engineering, JSCE, Vol.46, pp.391-396, 2002.
  • 6.. A.Nakayama and  S.N. Vengadesan, "On the influence of numerical schemes and subgrid stress models on LES of turbulent flow past a square cylinder", Inter. Jl. for Numerical Methods in Fluids, Vol.38, n3, pp.227-253, 2002.
  • 5. S.N. Vengadesan and  Akihiko Nakayama: "An investigation of appropriate LES method for wind flow over of two-dimensional topography", Annual J. of Hydraulic Engineering, JSCE, Vol.45, pp.223-228, 2001.
  • 4.. S.N. Vengadesan and  Akihiko Nakayama: "Effects of finite difference schemes on LES of turbulent flow around bluff body", Annual J. of Hydraulic Engineering, JSCE, Vol.44, pp.581-587, 2000.
  • 3. S. Vengadesan and  A. Nakayama, "Performance of k-ε model in computing asymmetric near wakes", AIAA Journal, Vol.32, pp.1925-1926, 1994.
  • 2. E. G. Tulapurkara, S.Vengadesan and  J. Lakshminarasimhan, "Calculation of turbulent asymmetric wakes", Inter. Jl. for Numerical Methods in Fluids, Vol.16, pp.239-248, 1993.
  • 1. V.R.Deshpande, E. G. Tulapurkara and  S.Vengadesan, "Parallalization of finite volume code", Inter. Jl. Aero. Soc. India, Vol.44, pp.297-302, 1992.



  • A. K. Jayanthy, Assessment of capillary blood flow variations in normal and diseased real / phantom tissues using laser speckle contrast imaging technique (Degree awarded July 2012)
  • B. S. Suresh Anand, Studies on factors affecting quantification of biomarkers of turbid media using optical spectroscopy (Degree awarded July 2013)
  • K. Udayakumar, Early detection of soft tissue anomalies using optical interferometric techniques (Ongoing)
  • K. BalaNivetha, Depth resolved tissue fluorescence imaging (Ongoing)
  • Pauline John, Optical Coherence Tomography for non invasive glucose detection (co-guidance with Prof. Nilesh Vasa, Engineering Design, Ongoing)