Simulation-based Research and development of advanced energy systems

CFD modeling and simulation of turbulence in two-phase bubbly flows - Developed CFD routines and integrated it in C++ based code OpenFOAM to achieve accurate prediction of turbulent flows in multi-phase flow systems - Developed computational models for multiphase turbulent flows (RST, k-epsilon, k-omega). - Performed verification and validation of developed models on turbulent multi-phase flow processes in fluidised bed, bubble column reactor and stirred tank reactor using… Show more CFD modeling and simulation of turbulence in two-phase bubbly flows - Developed CFD routines and integrated it in C++ based code OpenFOAM to achieve accurate prediction of turbulent flows in multi-phase flow systems - Developed computational models for multiphase turbulent flows (RST, k-epsilon, k-omega). - Performed verification and validation of developed models on turbulent multi-phase flow processes in fluidised bed, bubble column reactor and stirred tank reactor using commercial codes (ANSYS, MFIX) and OpenFOAM. Show less

Simulation based engineering of surface wettability to obtain enhanced evaporative chip cooling - Developed computational model for the evaporative cooling process on a heated surface wherephase change was captured by level set method - Performed parallel simulations using the commercial code TRANSAT by varying the wettability of the heated surface. - Identified the optimum wetting property which gave maximum cooling performance. - Wrote sub routines in FORTRAN to… Show more Simulation based engineering of surface wettability to obtain enhanced evaporative chip cooling - Developed computational model for the evaporative cooling process on a heated surface wherephase change was captured by level set method - Performed parallel simulations using the commercial code TRANSAT by varying the wettability of the heated surface. - Identified the optimum wetting property which gave maximum cooling performance. - Wrote sub routines in FORTRAN to integrate the micro-layer evaporation sub-model which is not captured by the computational grid. - Wrote scripts in python to postprocess the data in paraview. Show less

Aided in the simulation based design of Gas Absorption Heat Pump (GAHP ) used in HVAC systems to achieve 40% reduction in volume. - Developed Numerical model for the flow and gas-liquid absorption process in the pump based on VOF. - Developed numerical model for NH3-H2O species transport in the flow. - Built the geometry, meshed it and performed parallel simulations in ANSYS using BOSCH clusters. - Developed scripts to automate parallel simulations and post process the… Show more Aided in the simulation based design of Gas Absorption Heat Pump (GAHP ) used in HVAC systems to achieve 40% reduction in volume. - Developed Numerical model for the flow and gas-liquid absorption process in the pump based on VOF. - Developed numerical model for NH3-H2O species transport in the flow. - Built the geometry, meshed it and performed parallel simulations in ANSYS using BOSCH clusters. - Developed scripts to automate parallel simulations and post process the simulation data in parallel. - Proposed design solutions based on the simulations. Show less

Evaluated the heat transfer or mixing in a droplet due to alternating electric field (typical applications involve heat exchangers, combustors etc.) - Developed a 2D transient computational solver in C for the process, based on VOF method. - Developed Lagrangian Particle Tracking (LPT) routine to study the mixing. - Studied the effect of voltage on mixing for different voltage frequencies.

Aided in the modeling and simulation of multiphase flow in a Blast furnace. - Coupled the in-house gas-particle solver developed in C with the gas-liquid solver in FORTRAN to simulate the flow inside the Blast furnace. - Performed CFD simulations to get better insight on the physics inside the furnace.