R. P. Chhabra
B.E. University of Roorkee 1974
M.E. Indian Institute of Science, Bangalore 1976
Ph.D. Monash University 1980
Phone: 91-512-2597393, 2597607
- Fluid mechanics of multiphase systems.
- Non-Newtonian fluid-particle mechanics.
- Transport properties of molten salts and metals.
recent years, our main focus has been to elucidate the
role of non-Newtonian rheology on flow field in
model configurations including the flow over a single
cylinder of circular, elliptic and square cross-sections
and for two cylinders in a tandem arrangement, over a
solid or a fluid sphere, etc. In particular, extensive
results have been obtained on the detailed kinematics of
the flow in terms of stream line patterns and
isotherm contours to delineate the dead zones and
local hot/cold regions. This information is crucial to
achieve uniform product quality especially during the
thermal processing of temperature sensitive materials
(such as food-stuffs). Reliable values of the gross
transport parameters including drag coefficient and
Nusselt number encompassing wide ranges of the
Reynolds number, Prandtl number and non-Newtonian flow
parameters are also needed while performing process
Fellow, Indian National Science Academy, New Delhi.
Fellow, The Academy of Sciences.
Fellow, National Academy of Sciences (India).
Fellow, Indian National Academy of Engineering.
N. Nirmalkar, R. P. Chhabra and R. J. Poole, Numerical predictions of momentum and heat transfer characteristics from a heated sphere in yield stress fluids,
Ind. Eng. Chem. Res., 52, 6848- (2013).
R. Shyam, C. Sasmal and R. P. Chhabra, Natural convection heat transfer from two vertically aligned circular cylinders in power-law fluids,
International Journal of Heat & Mass Transfer, 64, 1127-1152 (2013).
R. Shyam, M. Sairamu, N. Nirmalkar and R. P. Chhabra, Free convection from a heated circular cylinder in confined power-law fluids,
International Journal of Thermal Sciences, 74, 156-173 (2013).
S. Sivakumar, N. Nirmalkar and R. P. Chhabra, Effect of orientation on mixed convection from a heated square bar in Newtonian and power-law fluids,
Numerical Heat Transfer, Part A, in press (2013).
N. Nirmalkar, R. P. Chhabra and R. J. Poole, Effect of shear-thinning behaviour on heat transfer from a heated sphere in yield-stress fluids,
Ind. Eng. Chem. Res.,
52, 13490-13504 (2013).
A. K. Tiwari and R. P. Chhabra, Effect of orientation on steady laminar free convection heat transfer in power-law fluids from a heated triangular cylinder,
Numerical Heat Transfer, Part A, in press (2014).
S. A. Patel and R. P. Chhabra, Steady flow of Bingham plastic fluids past an elliptical cylinder,
J. Non-Newt. Fluid Mechanics, in press (2013).
V. S. Nalajala, N. Kishore and R. P. Chhabra, Effect of contamination on the rise velocity of bubble swarms at moderate Reynolds numbers,
Chem. Eng. Res. Des., in press (2013).