Research Projects and Publications

Adak D, Akram MB, Roy S, Balasubramanian G. Neural Network Enabled Process Parameter Optimization for Laser Powder Bed Fusion of Inconel 718. Journal of Manufacturing and Materials Processing. 2026 Jun 26;10(7):219. 

Kumar D, Sharma SD, Bose C, Roy S. GPU optimized integration of immersed boundary method and overset mesh framework for moving boundary problems. Available at SSRN 6277625. 2026 Feb 20. 

Alam MI, Dey D, Bhattacharya A, Kumar S, Roy S. Simulation of mixed and natural convection in power-law fluids inside square enclosure with circular cylinder using sharp interface immersed boundary method. The European Physical Journal Special Topics. 2025 Sep 29:1-27. 

Bartwal N, Roy S, Vanka SP. Application of a high-order meshless method to study mixed convection heat transfer in a cavity with rotating circular cylinders. Computers & Fluids. 2025 Oct 8:106868. 

Kumar P, Sharma SD, Das PK, Roy S. Effects of increased heart rates on the hemodynamic features and arterial stress in a realistic left anterior descending coronary artery model of a young human with different degrees of stenosis. The European Physical Journal Special Topics. 2025 Sep 6:1-27. 

Sarkar N, Sharma SD, Chakraborty S, Roy S. Direct numerical simulations reveal vortex stabilisation through streamlined leading and trailing edges of a bileaflet mechanical heart valve. Journal of Fluid Mechanics. 2025 Sep;1018:A43. 

Adak D, Roy S, Balasubramanian G. Process parameter optimization for predictive melt-pool morphology in laser powder bed fusion for Inconel 718. The International Journal of Advanced Manufacturing Technology. 2025 Aug 5:1-7. 

Dutta S, Lakkaraju R, Roy S. Wall effects in fishes-like undulating hydrofoils. Physics of Fluids. 2025 Jan 1;37(1). 

Kumar D, Sharma SD, Roy S. GPU optimized multi-block-multi-mesh immersed boundary method for flows in complex arterial models. Computers & Fluids. 2024 Aug 30;281:106367. 

Sarkar N, Dawn S, Raj A, Khan PM, Roy S. A stable loosely coupled fluid structure interaction scheme using sharp interface immersed boundary method for low to moderate mass ratios. Computers & Fluids. 2024 Aug 15;280:106342. 

Sarkar N, Sharma SD, Chakraborty S, Roy S. A comparative study of Newtonian and non-Newtonian blood flow through Bi-Leaflet Mechanical Heart Valve. Computers & Fluids. 2024 Jul 30;279:106337. 

Dutta S, Raj A, Lakkaraju R, Roy S. Hydrodynamics of pitching hydrofoil in a plane Poiseuille flow. Physics of Fluids. 2024 Feb 1;36(2). 

Sarkar N, Roy S. Periodic flow features in a planar sudden expansion with pulsatile inflow velocity. Journal of Fluid Mechanics. 2024 Feb;980:A43. 

Kumar P, Roy S, Das PK. Stenosis severity and heart rate effects on left coronary artery hemodynamics and myocardial oxygen balance: A comprehensive assessment using pressure gradient. Physics of Fluids. 2024 Feb 1;36(2). 

Khan PM, Sharma SD, Chakraborty S, Roy S. Effects of hematocrit levels on flow structures and stress levels in the healthy and diseased carotid arteries. Physics of Fluids. 2024 Jan 1;36(1). 

Gupta D, Saha P, Roy S. Multi-objective optimization of air-cooled perforated micro-pin fin heat sink via an artificial neural network surrogate model coupled with NSGA-II. Journal of Thermal Science and Engineering Applications. 2024 Jan 1;16(1):011004. 

Das P, Khan PM, Sharma SD, Roy S. Effects of hematocrit level on mass transfer through the walls of stenosed carotid arteries. InAIP Conference Proceedings 2026 May 7 (Vol. 3489, No. 1, p. 030004). AIP Publishing LLC. 

Sanyal S, Sikdar P, Dash SM, Roy S.  A Multiple Relaxation Time Based Lattice Boltzmann Method Coupled with the Flexible Forcing Immersed Boundary Scheme to Study the Power-Law Fluid Flow past a Two-dimensional Circular Cylinder, Proceedings of the 26th AeSI CFD Symposium, August 11-13, 2025, HAL Management Academy, Bangalore, India

Prakash RR, Sarkar N, Roy S. Sudden Expansion in the Presence of Solid Cylinder. Proceedings of Fluid Mechanics and Fluid Power (FMFP) 2023, Vol. 1: Fluid Mechanics. 2025 Mar 15:165.

Sarkar N, Sharma S, Chakraborty S, Roy S. Ameliorating the hemodynamics of Mechanical Heart Valves via leaflet design alteration. InAPS Division of Fluid Dynamics Meeting Abstracts 2024 Nov (pp. R01-006). 

Sharma S, Sarkar N, Chakraborty S, Roy S. Computational study of different sinus geometries on mechanical heart valve hemodynamics. InAPS Division of Fluid Dynamics Meeting Abstracts 2024 Nov (pp. R01-007). 

Sarkar N, Mishra A, Roy S. On the three-dimensionality aspect of flows through sudden expansion. InProceedings of the 27th National and 5th International ISHMT-ASTFE Heat and Mass Transfer Conference December 14-17, 2023, IIT Patna, Patna-801106, Bihar, India 2024. Begel House Inc.. 

Simulating Nature in EXA-Scale: GPU Accelerated Fluid-Structure Interaction modelling of Bio-inspired Drone Swarms - SPARC

CFD Optimization of Topology and Surface Texture for Wings of Butterfly-Mimetic Flyer - Aeronautics R and D Board

Nodal Center in HPC and AI at IIT Kharagpur under National Supercomputing Mission (NSM) - Centre for Development of Advanced Computing

Workshops for NSM Nodal Centre - Centre for Development of Advanced Computing

4D Cardiac Modelling of Pediatric heart - TATA Consultancy Services Limited

Numerical Investigation or Dynamics of Blood Clots in Diseased Carotid Artery

CFD based Design of Mechanical Heart Valves

High-Performance GPU based Immersed Boundary Methods for Simulations of Biological Flows

Development of a Hybrid Continuum to Atomistic Scale Solver for Multiscale Flow Problems

Hydroelasticity of a Large and High Speed Ships Considering the Slamming and Green Water Impact on Regular and Ir-regular Waves