Ashish V. Orpe

Ashish V. Orpe

Chemical Engineering & Process Development

About Me

Our work is aimed towards developing a fundamental understanding of the flow of particulate media in conjunction with an interstitial fluid under external forcing. We employ flow visualization techniques, which involves high speed camera imaging, laser fluorescence and analysis, to follow individual particle trajectories. The information gained allows us to extract rheology at the local (particle) level, which would help us understand the global behaviour better. Currently we are working in the area of dense, wet granular systems and dense suspensions subjected to external forcing within different geometries of industrial relevance. In parallel, we are also studying aging and percolation behavour of static suspensions induced due to individual Browninan motion of particles or liquid-particle interactions.

Professional Experience

  • March 2008 - present: Assistant Professor, Academy of Science and Innovative Research, Chennai, India 600113
  • March 2012 - present: Senior Scientist, Chemical Engineering Division, National Chemical Laboratory, Pune India 411008
  • March 2008 - February 2012: Scientist, Chemical Engineering Division, National Chemical Laboratory, Pune, India 411008
  • August 2004 - January 2008: Post Doctoral Research Fellow (with Prof. Arshad Kudrolli), Department of Physics, Clark University, Worcester, MA, USA 01610
  • December 1998 - July 2004: Ph.D, Department of Chemical Engineering, IIT Bombay, Powai, Mumbai, India400076

Selected Publications

  • M. Kulkarni, S. Sahoo, P. Doshi And A. V. Orpe, Fingering instability of a suspension film spreading on a spinning disk, Physics of Fluids., 28, 063303 (2016).
  • A. Kunte, P. Doshi And A. V. Orpe, Spontaneous jamming and unjamming in a hopper with multiple exit orifices, Phys. Rev. E (Rapid Communication)., 90, 020201(R) (2014).
  • S. Kamath, A. Kunte, P. Doshi And A. V. Orpe, Flow of granular matter in a silo with multiple exit orifices: Jamming to mixing, Phys. Rev. E., 90, 062206 (2014).
  • A. V. Orpe, V. Kumaran, A. Reddy And A. Kudrolli, Fast decay of the velocity autocorrelation function in dense shear flow of inelastic hard spheres, Europhys. Lett., 84, 64003 (2008).
  • A. Lobkovsky, A. V. Orpe, R. Molloy, A. Kudrolli And D. H. Rothman, Erosion of a granular bed driven by laminar fluid flow, J. Fluid Mech., 605, 47 (2008).

Research Interest

  • Complex Fluids AND Polymer Engineering
  • Industrial Flow Processes

Contact Details

Dr. Ashish V. Orpe

F-103, Polymer and Advanced Materials Building,
National Chemical Laboratory
Dr. Homi Bhabha Road
Pune 411008, India
Phone +91 20 2590 2749
Fax +91 20 2590 2621