Personal Information
Full Name: Prof. Prabhu Ramachandran
Building: Aero annex
Phone: 25767121
Email: prabhu[at]aero.iitb.ac.in
Website: http://www.aero.iitb.ac.in/~prabhu/

Specialization: Aerodynamics

Awards & Fellowships

    • 2008: two FOSS Awards for Mayavi and TVTK as two of the top open source projects from India.
    • 2010: Nominated member of the Python Software Foundation.
    • 2010: Excellence in Teaching Award for the year 2010 from IIT Bombay.
    • 2012: Hotchand Lala Teaching Award for undergraduate teaching, from the Department of Aerospace Engineering, IIT Bombay.
    • 2014: Kenneth Gonsalves Award 2014: an annual award constituted by the Python Software Society of India for recognition of substantial and original community contribution towards Python programming by an Indian.
    • 2017: D. P. Joshi Award for Excellence in Teaching for the year 2017 from the Department of Aerospace Engineering, IIT Bombay.
R&D
Publications: 

Journal papers

  • Prabhu Ramachandran and Kunal Puri, "Entropically Damped Artificial Compressibility for SPH", under review.
  • Kunal Puri and Prabhu Ramachandran, "Approximate Riemann Solvers for the Godunov SPH (GSPH)", Journal of Computational Physics, Volume 270, 1 August 2014, Pages 432–458.
  • Kunal Puri and Prabhu Ramachandran, "A comparison of SPH schemes for the compressible Euler equations", Journal of Computational Physics, Volume 256, 1 January 2014, Pages 308-333.
  • Jain S and Prabhu Ramachandran, "Development of object-oriented Direct Simulation Monte Carlo code for modeling of rarefied flow around geometries of arbitrary shapes",Applied Mechanics and Materials, Volume 110-116, 2012, Pages 2491-2496.
  • Prabhu Ramachandran and Gaël Varoquaux, "Mayavi: 3D visualization of scientific data", IEEE Computing in Science and Engineering Volume 13, Issue 2, pp 40-51, March 2011.
  • Prabhu Ramachandran and M. Ramakrishna. "An Object-Oriented Design for 2D Vortex Particle Methods.", ACM Transactions on Mathematical Software, 36(4):1-28, 2009.
  • Prabhu Ramachandran, M. Ramakrishna, and S. C. Rajan. "Efficient random walks in the presence of complex two-dimensional geometries.", Computers and Mathematics with Applications, Recent Advances in Non-Linear Mechanics, 53(2):329-344, January 2007.
  • Prabhu Ramachandran, S. C. Rajan, and M. Ramakrishna. "A fast multipole method for higher order vortex panels in two-dimensions." SIAM Journal on Scientific Computing, 26(5):1620-1642, 2005. PDF 324K.
  • Prabhu Ramachandran, S. C. Rajan and S. Santhakumar. "Engineering estimates of normal loads on slender air-breathing bodies." Journal of Spacecraft and Rockets, 41(6):942-947, November-December, 2004.
  • Prabhu Ramachandran, S. C. Rajan, and M. Ramakrishna. "A fast, two-dimensional panel method." SIAM Journal on Scientific Computing, 24(6):1864-1878, 2003. PDF 164K.
  • Prabhu Ramachandran and S. C. Rajan. "Identification of regions of fastest mixing in a system of point vortices." International Journal of Numerical Methods in Fluids, 38:447-469, 2002.
  • Prabhu Ramachandran, M. Ramakrishna, and S. C. Rajan. "Particle based flow solvers for incompressible flows in two dimensions: impulsively started flow past a circular cylinder." Journal of the Aeronautical Society of India, 53(2):102-110, May 2001. PDF 168K.
R&D Areas/Projects: 

    Research areas: Vortex methods, Particle methods, Scientific computing, Computational fluid dynamics

    My current interests include:

    • Vortex methods for 2D and 3D fluid flow simulations.
    • Smoothed particle hydrodynamics.
    • Application of vortex methods to challenging fluid flow problems.

    There are two aspects of my research work:

    1. Building the necessary tools of interest using particle methods. Currently we have a powerful 2D vortex method code capable of simulating complex moving geometries. Our current work is focussed on building tools in 3D using both vortex methods and smoothed particle hydrodynamics.
    2. Application of the built tools to various problems: currently we are using the 2D vortex method code to simulate challenging and very interesting problems.

    One of the major advantages of particle methods is that they are mesh-free and this allows for very interesting computations. In this context we are currently investigating a few problems of practical interest. One of these is the simulation of horizontal axis wind turbines to assess how well they perform. This is an ongoing project. Additionally, particle based methods tend to be very accurate and cost effective for a certain class of problems (unsteady, incompressible flows). Please take a look at the Publications page for some recent results.

Teaching
Courses Taught: 
  • AE 305/AE 717 Flight Mechanics II/Aircraft flight dynamics.
  • AE 625 Particle methods for fluid flow simulation: Introduces the student to particle methods (viscous/inviscid vortex methods in 2D, 3D, SPH and DSMC).
  • AE 705: Introduction to flight (along with Prof. V. Menezes)
  • AE 451 Numerical methods for engineers /AE 771 Matrix computations
  • AE 152 Flight Mechanics I (along with Prof. K. Sudhakar)
  • HS 699: Communication and Presentation Skills