• Institute Chair Professor
• HWK, Germany Fellowship
• Max Planck Society,Fellowship
• EPSRC, UK Visiting Professor
• FNASc

Journal
• Effects of electrostatic correlations and ion solvent interactions of finite-sized ions on the electrophoresis of a soft particle by Mondal B., Bhattacharyya S. Journal of Fluid Mechanics 1006 - (2025)
• Effects of thermoosmosis and thermophoresis of finite-sized ions along with a pressure-driven flow on the thermoelectric field in a conical hydrophobic nanopore by Paik S., Bhattacharyya S., Weigand B. International Journal of Heat and Mass Transfer 241 - (2025)
• Ion steric interactions and electrostatic correlations on electro-osmotic flow in charged nanopores with multivalent electrolytes by Sahu S., Mondal B., Bhattacharyya S. Physical Review Fluids 9 - (2024)
• Effect of the surface charge-dependent boundary slip on the electrophoresis of a hydrophobic polarizable rigid colloid. by Majhi S., Bhattacharyya S. , Gopmondal P. Langmuir 40 3725-3737 (2024)
• Net flow of charge-asymmetric electrolytes through uncharged channels and over uncharged spheres due to direct-current electroosmosis by Pandey D., Bhattacharyya S., Hardt S. Journal of Fluid Mechanics 997 - (2024)
• Impact of laterally mobile surface charge on diffusiophoresis of hydrophobic rigid colloids by Majhi S., Bhattacharyya S., Gopmandal P.P. Journal of Fluid Mechanics 997 - (2024)
• Nonlinear electrophoresis of a highly charged particle by incorporating electrostatic correlations and ion steric interactions for a finite Debye length by Paik S., Bhattacharyya S., Majhi S. Journal of Fluid Mechanics 1000 - (2024)
• Finite ion size effects on electrophoresis of a dielectric surfactant-laden droplet in a non-dilute electrolyte by Majhi S., Bhattacharyya S. Applied Mathematical Modelling 132 384-401 (2024)
• Finite ion size effects on electrophoresis of a dielectric surfactant-laden droplet in a non-dilute electrolyte by Majhi S., Bhattacharyya S. Applied Mathematical Modelling 132 384-401 (2024)
• Diffusiophoresis of charge-regulated nanoparticles comprising finite ion size and electrostatic correlation effects by Mondal B., Bhattacharyya S. Physics of Fluids 36 - (2024)
• Diffusiophoresis of a charged droplet in asymmetric as well as mixed electrolytes through numerical and semi-analytic models by Majhi S., Bhattacharyya S. Langmuir - (2023)
• Diffusiophoresis of a highly charged rigid colloid in a hydrogel incorporating ion steric interactions. by Bhaskar B., Bhattacharyya S. Physics of Fluids 35 102023- (2023)
• Diffusiophoresis of a soft particle incorporating ion partitioning and hydrophobic core by Mondal B., Bhattacharyya S. , Majhi S. , Ohshima H. Physics of Fluids 35 062017- (2023)
• Numerical model supplemented by thin-layer analysis for diffusiophoresis of a particle incorporating finite ion size effects. by Bhaskar B., Bhattacharyya S. Physics of Fluids 35 062012- (2023)
• Numerical study supplemented with simplified model on electrophoresis of a hydrophobic colloid incorporating finite ion size effects and ion-solvent interactions by Bhaskar B., Bhattacharyya S. Electrophoresis 44 403-416 (2023)
• A numerical study supplemented with theoretical analysis on streaming potential in a soft nanochannel influenced by ion partitioning and mobile surface charge-dependent wall slip by Sahu S., Bhaskar B. , Bhattacharyya S. Physics of Fluids 35 122021- (2023)
• Effect of hybrid nanoparticles on conjugate mixed convection of a viscoplastic fluid in a ventilated enclosure with wall mounted heated block by Dutta S., Bhattacharyya S., Pop I. Alexandria Engineering Journal 62 99-111 (2023)
• A simplified model for the impact of dielectric polarization of a charged droplet on its diffusiophoresis. by Majhi S., Bhattacharyya S. Physics of Fluids 35 032018- (2023)
• E ects of membrane polarization, steric repulsion and ion-solvent inter- actions on electroosmosis through a conical nanopore by Pandey D., Bhattacharyya S. Applied Mathematical Modelling 111 471- (2022)
• Numerical study on diffusiophoresis of a hydrophobic nanoparticle in a monovalent or multivalent electrolyte by Majhi S., Bhattacharyya S. Colloids and Surfaces A: Physicochemical and Engineering Aspects 648 129272- (2022)
• Effect of hybrid nanoparticles on conjugate mixed convection of a viscoplastic fluid in a ventilated enclosure with wall mounted heated block by Dutta S., Bhattacharyya S. , Pop I. Alexandria Engineering Journal 62 99-111 (2022)
• Finite ion size and ion permittivity effects on gel electrophoresis of a soft particle by Barman S. S., Bhattacharyya S. Colloids and Surfaces A: Physicochemical and Engineering Aspects 636 128088- (2022)
• Resonant Nanopumps: ac Gate Voltages in Conical Nanopores Induce Directed Electrolyte Flow. by Ratschow A., Pandey D. , Liebchen B. , Bhattacharyya S. Physical Review Letters 129 264501- (2022)
• Enhanced electroosmotic flow, conductance and ion selectivity of a viscoplastic fluid in a hydrophobic cylindrical pore by Kundu D., Bhattacharyya S. Applied Mathematical Modelling 111 802- (2022)
• Heat transfer enhancement compared to entropy generation by imposing magnetic field and hybrid nanoparticles in mixed convection of a Bingham plastic fluid in a ventilated enclosure. by Dutta S., Bhattacharyya S. , Pop I. Int. J. Numer Methods Heat & Fluid Flow 32 3007-3038 (2022)
• Ion partitioning and ion size effects on streaming field and energy conversion efficiency in a soft nanochannel by Kundu D., Bhattacharyya S. , Gopmandal P. P. Colloid and Polymer Science 300 1049- (2022)
• Charge selectivity of an ionic transistor by Pandey D., Bhattacharyya S. , Ghosal S. Langmuir 37 4571-4577 (2021)
• A simplified model for gel electrophoresis of a hydrophobic rigid colloid. by B., Gopmandal P. , Bhattacharyya S. , Ohshima H. Soft Matter 17 5700-5710 (2021)
• Impact of finite ion size, Born energy difference and dielectric decrement on the electroosmosis of multivalent ionic mixtures in a nanotube by Pandey D., Bhattacharyya S. Colloids and Surfaces A: Physi. & Eng. Aspects 610 125905- (2021)
• Impact of ion partitioning and double layer polarization on diffusiophoresis of a pH-regulated nanogel. by Majee P., Bhattacharyya S. Meccanica 56 1989-2004 (2021)
• Two-phase model for mixed convection and flowenhancement of a nanofluid in an inclined channel patterned with heated slip stripes by Dutta S., Bhattacharyya S. , Pop I. Int. J. Numer Methods Heat & Fluid Flow 31 3047-3070 (2021)
• Impact of surface hydrophobicity and ion steric effects on the electroosmotic flow and ion selectivity of a conical nanopore by Pandey D., Bhattacharyya S. Applied Mathematical Modelling 94 721-736 (2021)
• Numerical Study on Ion Transport and Electro-Convective Mixing of Power-law Fluid in a Heterogeneous Micro-Constrained Channel by Haque A., Nayak A. , Bhattacharyya S. Physics of Fluids 33 122014- (2021)
• Influence of finite ion size and dielectric decrement on the ion current rectification in a single conical nanopore by Pandey D., Bhattacharyya S. Physics of Fluids 33 062006- (2021)
• Electrokinetic actuation of an uncharged polarizable dielectric droplet in charged hydrogel medium. by Barman S., Bhattacharyya S. , Dutta P. Electrophoresis 42 920931- (2021)
• Settling of a charged hydrophobic rigid colloid in aqueous media under generalized gravitational field. by Kundu D., Bhattacharyya S. , Gopmandal P. , Ohshima H. Electrophoresis 42 10101020- (2021)
• Impact of charged polarizable core on mobility of a soft particle embedded in a hydrogel medium by Barman S., Bhattacharyya S. , Gopmandal P. , Ohshima H. Colloid and Polymer Science 298 17291739- (2020)
• Impact of ion-steric and ion-partitioning effects on electrophoresis of soft particles by Gopmandal P., De S. , Bhattacharyya S. , Ohshima H. PHYSICAL REVIEW E 102 032601- (2020)
• A non-homogeneous model for the mixed convection of a nanofluid in a lid-driven inclined enclosure with discrete heat source by Dutta S., Bhattacharyya S. , Pop I. ASME Journal of Heat Transfer 142 01250- (2020)
• Electrokinetic transport of a non-conducting liquid droplet in a polyelectrolyte medium by Barman S., Bhattacharyya S. Physics of Fluids 32 - (2020)
• Influence of slip velocity at the core of a diffuse soft particle and ion partition effects on mobility by Kundu D., Bhattacharyya S. Eur. Phys. J. E 43 27- (2020)
• Analytic expression for electrophoretic mobility of soft particles with hydrophobic inner core at different electrostatic conditions by B., Gopmandal P. P., Bhattacharyya S. , Ohshima H. Langmuir 36 3201-3211 (2020)
• Nonhomogeneous model for conjugate mixed convection of nanofluid and entropy generation in an enclosure in presence of inclined magnetic field with Joule heating by Dutta S., Bhattacharyya S. , Pop I. Int. J. Numer Methods Heat & Fluid Flow - (2020)
• On electrophoresis of a pH-regulated nanogel with ion partitioning e ects by Majee P. S., Bhattacharyya S. , Dutta P. Electrophoresis 40 699-709 (2019)
• Enhanced electroosmotic flow and ion selectivity in a channel patterned with periodically arranged polyelectrolyte filled grooves by Bag N., Bhattacharyya S. Microfluidics Nanofluidics 23 46- (2019)
• Enhanced electroosmotic ow of Herschel-Bulkley uid in a channel patterned with periodically arranged slipping surfaces by Bhattacharyya S., Bag N. Physics of Fluids 31 072007-22 (2019)
• A numerical study of the selectivity of an isolated cylindrical or conical nanopore to a charged macro-ion by Pandey D., Bhattacharyya S. , Ghosal S. Biomicrofluidics 13 054108- (2019)
• A numerical study on non-homogeneous model for the conjugate-mixed convection of a Cu-water nano uid in a thick wavy wall enclosure. by Pal S. K., Bhattacharyya S. , Pop I. Appl. Math. Comput. 356 219-234 (2019)
• Impact of nanoparticles migration on mixed convection and entropy generation of a Al2O3-water nano uid inside an inclined enclosure with wavy side wall by Pal S. K., Bhattacharyya S. , Pop I. Thermal Analysis Calorimetry 138 3205-3221 (2019)
• Nonlinear Effects on Electrophoresis of a Soft Particle and Sustained Solute Release. by Ghosal U. K., Bhattacharyya S. , Gopmandal P. P., De S. Transport in Porous Media 121 121-133 (2018)
• Nonlinear electrophoresis of a charged polarizable liquid droplet by Bhattacharyya S., Majee P. S. Physics of Fluids 30 - (2018)
• Effect of solid-to-fluid conductivity ratio on mixed convection and entropy generation of a nanofluid in a lid-driven enclosure with a thick wavy wall by Pal S. K., Bhattacharyya S. , Pop I. International Journal of Heat and Mass Transfer 127 885-900 (2018)
• On gel electrophoresis of dielectric charged particles with hydrophobic surface: A combined theoretical and numerical study by Majee P. S., Bhattacharyya S. , Gopmandal P. P., Oshima H. Electrophoresis 39 794-806 (2018)
• Effects of geometric modulation and surface potential heterogeneity on electrokinetic flow and solute transport in a microchannel by Bera S., Bhattacharyya S. Theoretical and Computational Fluid Dynamics 32 201-214 (2018)
• Effects of nanoparticles dispersion on the mixed convection of a nanofluid in a skewed enclosure by Nayak R. K., Bhattacharyya S. , Pop I. International Journal of Heat and Mass Transfer 125 908-919 (2018)
• Electroosmotic flow around a dielectric uncharged particle by considering the dielectric decrement effects by Majee P. S., Bhattacharyya S. Colloids and Surfaces A 547 37-48 (2018)
• Electroosmotic flow of a non-Newtonian fluid in a microchannel with heterogeneous surface potential by Bag N., Bhattacharyya S. Journal of Non-Newtonian Fluid Mechanics 259 48-60 (2018)
• Electroosmotic flow reversal and ion selectivity in a soft nanochannel. by Bag N., Bhattacharyya S. , Gopmandal P. P., Ohshima H. Colloid Polymer Science In press - (2018)
• Enhanced electroosmotic flow in a nano-channel patterned with curved hydrophobic strips by Bhattacharyya S., Pal S. Applied Mathematical Modelling 54 567-579 (2018)
• ENHANCED HEAT TRANSFER OF Cu-WATER NANOFLUID IN A CHANNEL WITHWALL MOUNTED BLUNT RIBS by Pal S. K., Bhattacharyya S. Journal of Enhanced Heat Transfer 25 61-78 (2018)
• Ion partitioning effect on the electrophoresis of a soft particle with hydrophobic core by Saurabh K. Maurya S., Gopmandal P. , Bhattacharyya S. , Ohshima H. PHYSICAL REVIEW E 98 - (2018)
• Electrophoresis of a polarizable charged colloid with hydrophobic surface: A numerical study by Bhattacharyya S., Majee P. S. Physical Review E - (2017)
• On the similarity between the electrophoresis of a liquid drop and a spherical hydrophobic particle by Gopmandal P. P., Bhattacharyya S. P., Oshima H. Colloid Polymer Science 295 2077-2082 (2017)
• Enhanced electroosmotic flow through a nanochannel patterned with transverse periodic grooves by Bhattacharyya S., Bag N. ASME Journal of Fluids Engineering 139 - (2017)
• Effect of Charge Density on Electrokinetic Ions and Fluid Flow Through Polyelectrolyte Coated Nanopore by Bera S., Bhattacharyya S. ASME Paper No. FEDSM 2017-69194 - (2017)
• Effect of hydrophobic core on the electrophoresis of a diffuse soft particle. by Gopmandal P. P., Bhattacharyya S. , H. O. Proceedings of Royal Society A 473 20160942- (2017)
• A Numerical Study on Hydrodynamics of a Soft Particle with Hydrophobic Core. by Ghosal U. K., Bhattacharyya S. Recent Patents on Mechanical Engineering 10 - (2017)
• Electrophoresis of diffuse soft particles with dielectric charged rigidcore grafted with charge regulated inhomogeneous polymer segments. by Bhattacharyya S., Gopmandal P. , Ohshima H. Colloids and Surfaces A: Physicochem. Eng. Aspects 504 - (2016)
• Electrophoresis of soft particles with charged rigid core coated with pH regulated polyelectrolyte layer by Gopmandal, P., Bhattacharyya S. , Ohshima H. Colloid Polymer Sci. 294 1845-1856 (2016)
• Importance of core electrostatic properties on the electrophoresis of a soft particle. by Bhattacharyya S., De S. Phys. Rev. E 94 022611- (2016)
• Influence of rigid core permittivity and double layer polarization on the electrophoresis of a soft particle: a numerical study by Bhattacharyya S., De S. Physics of Fluids 28 012001- (2016)
• Nonlinear effects on electrophoresis of a charged dielectric nanoparticle in a charged hydrogel medium. by Bhattacharyya S., De S. Physics of Fluids 28 092006- (2016)
• Effect of core charge density on the elec- trophoresis of a soft particle coated with polyelectrolyte layer by Gopmandal P., Bhattacharyya S. , Ohshima H. Colloid Polym. Sci. 294 727-733 (2016)
• Numerical Study on Mixed Convection and Entropy Generation of a Nanofluid in a Lid-Driven Square Enclosure by Nayak R., Bhattacharyya S. , Pop I. J. Heat Transfer 138 - (2016)
• Gel electrophoresis and size selectivity of charged colloidal particles in a charged hydrogel medium. by Bhattacharyya S., De S. Chem. Eng. Sci. 141 304-314 (2016)
• Heat transfer and entropy generation in mixed convection of a nanofluid within an inclined skewed cavity by Bhattacharyya S., Nayak R. , Pop I. Int. J. Heat Mass Transfer 102 596-609. (2016)
• Combined electroosmosis-pressure driven flow and mixing in a microchannel with surface heterogeneity by Bhattacharyya S., Bera S. Applied Mathematical Modelling 39 4337-4350 (2015)
• Electrokinetic Effects on Solute Mixing Near a Conducting Obstacle Within a Microchannel. by Bera S., Bhattacharyya S. Mathematics and Computing 139 427-439 (2015)
• Electroosmotic flow in a slit nanochannel with superhy- drophobic walls. by S. De, S. Bhattacharyya & S. Hardt Microfluidics Nanofluidics 19 1465-1476. (2015)
• Electroosmotic flow in the vicinity of a conducting obstacle mounted on the surface of a wide microchannel by Bera S., Bhattacharyya S. International Journal of Engineering Science 94 128-138 (2015)
• Numerical study of the influence of solid polarization on electrophoresis at finite Debye thickness. by Bhattacharyya S., De S. Physical Review E 92 032309- (2015)
• Numerical study on hydrodynamics of a soft particle and sustained solute release. by Bhattacharyya S., De S. Acta Mechanica 611-624 (2015)
• Numerical study on mixed convection and entropy generation of Cu-water nanofluid in a diffferentially heated skewed enclosure. by Nayak R. K., Bhattacharyya S. , Pop I. Int. J. Heat Mass Transfer 85 620-634 (2015)
• Control of vortex shedding and drag reduction through dual splitter plates attached to a square cylinder. by Barman B., Bhattacharyya S. Journal of Marine Science 138-145 (2015)
• Effect of Dual Splitter Plate Attached with a Square Cylinder Immersed in a Uniform Flow by Barman B., Bhattacharyya S. Applied Mathematics (Springer Proceedings in Mathematics & Statistics) 146 161-170 (2015)
• Effects of convection on isotachophoresis of electrolytes by Gopmandal P. P., Bhattacharyya S. ASME J. Fluids Engineering 137 081202- (2015)
• Effect of induced electric field on migration of a charged porous particle. by Barman B., Bhattacharyya S. European Physical Journal E 37 104- (2014)
• Electrophoresis of a colloidal particle embedded in electrolyte saturated porous media by Bhattacharyya S., Gopmandal P. Chem. Eng. Sci. 118 184-191 (2014)
• Nonlinear effects on electrokinetics of a highly charged porous sphere by Gopmandal P. P., Bhattacharyya S. Colloid Polymer Sci. 292 905-914 (2014)
• Nonlinear electroosmosis-pressure driven flow in a wide microchannel with patchwise surface heterogeneity by Bhattacharyya S., Bera S. J. Fluids Eng. 021303 135- (2013)
• On mixed electroosmotic-pressure driven flow and mass transport in microchannels by Bera S., Bhattacharyya S. Int. J. Eng. Sci. 62 165-176 (2013)
• Effects of electroosmosis and counterion penetration on electrophoresis of a positively charged spherical permeable particle by S. Bhattacharyya & P.P. Gopmandal Soft Matter 9 1871-1884 (2013)
• Electrokinetics of a charged permeable porous aggregate in an aqueous medium. by Gopmandal P. P., Bhattacharyya S. Colloids Surf. A: Physicochem. Eng. Aspects 433 433 64-76 (2013)
• Sample dispersion in isotachophoresis with Poiseuille counter flow by Bhattacharyya S. Physics of Fluids 25 022001- (2013)
• Double-diffusive convection in a cubical lid-driven cavity with opposing temperature and concentration gradients by Nayak A. K., Bhattacharyya S. Theo. Comput. Fluid Dyn. 26 565-581 (2012)
• Migration of a charged sphere at an arbitrary velocity in an axial electric field. by Bhattacharyya S., Gopmandal P. P. 390 86-94 (2011)
• Thermal Buoyancy-Aided Flow around a Heated/Cooled Spherical Particle by Gopmandal P. P., Bhattacharyya S. Heat Transfer Research 42 689-710 (2011)
• Reduction of drag and vortex shedding frequency through porous sheath around a circular cylinder by S. Bhattacharyya & A. K. Singh International Journal for Numerical Methods in Fluids 65 683-698 (2011)
• Electroosmotic flow in two-dimensional charged micro- and nanochannels by S. Bhattacharyya, Z. Zheng & A.T. Conlisk Journal of Fluid Mechanics 540 247-267 (2005)
• Comparisons of direct simulations and analytical predictions for multi-plate flows by S. Bhattacharyya & F.T. Smith Computers & Fluids 33 257-265 (2004)
Conferences
• Ion Partitioning Effects on Electroosmotic Flow Through pH Regulated Cylindrical Nanopore by Bera S., Bhattacharyya S. Studies in Computational Intelligence 1042 105-116 (2023)
Book
• Mathematical Modeling and Computational Tools by Bhattacharyya S., Kumar J. , Ghoshal K. - (2020)

Principal Investigator

• VORTEX BODY INTERACTIONS AND UNSTEADY FLOW SEPARATION USING PARTICLE SIMULATION APPROACH
• WALL PROXIMITY ON BLUFF BODY WAKE : 3-D ASPECTS
• ELECTRO-OSMOTIC FLOW AND MIXING IN CHARGED MICRO AND NANO-CHANNELS: A COMPUTATIONAL AND ANALYTICAL STUDY
• Modelling Electrokinetic flows in microfludics
• Numerical study on electro-hydrodynamics of immiscible or miscible fluids with conductivity gradient
• Electro-osmotic Flow, Interfacial Patterns and Instabilities in Micro/nano-channels with Indentations
• Numerical and Theoretical Analysis of Micro-Particles Self-Propulsion in Electrolyte of Gel Medium
• Modified Mathematical Model for Micro-scale Transport of Ionic Fluids Incorporating Short Range Interactions Pertaining to Microfluidics