Krishna Veeraraghavan E-mail:********.*******@*****.***
Rockville Centre NY -11570
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Summary
I have around 10 years of experience in Computational Fluid Dynamics (7 years of industrial experience and 2.5 years of research experience ) , my area of expertise in CFD is related to aerodynamics, thermal management studies and passenger comfort
Specialties
CFD code : CD-adapco (STAR-CD,STAR-CCM+),Fluent and ESI(CFD-ace,Viscart)
Education:
● Master of Science in Mechanical and Aerospace Engineering: Syracuse University,Oct2008
● Bachelor of Engineering in Instrumentation and Control :Pune University, India, July 2002
Experience
Industrial Experience
CD-Adapco , Melville, NY : Senior CFD Engineer since Oct 2008
Responsibilities :
● Execute projects related to aerodynamics, cabin comfort and vehicle thermal management studies using STAR-CCM+
● Lead a team (around 3 - 4 engineers ) in projects related to Vehicle thermal management (Underhood and Body in white) analysis
● Lead a team for organizing and imprinting (establish the connectivity between the parts) the CAD data
● Preparing technical documents (user manual) for Underhood analysis and reports for various projects
Projects:
● Vehicle Thermal Management studies
To obtain quantitative results with respect to the front end, underhood airflow and the heat exchanger package thermal performance of the vehicle. To obtain detailed local thermal environment in the underhood and estimates of heat transfer coefficients on any components of interest
● In this analysis the complete vehicle (Fluid and Solid ) with all the components are modeled
● From the Fluid model the following parameters are evaluated :
Mass flux through grill openings, underhood airflow and heat transfer across the heat exchangers
Temperature and Heat flux distribution across various components , Pressure and Velocity distribution in the vehicle
● From the solid model the following parameters are evaluated :
Temperature and heat flux distribution across all components
Procedure :
● The CAD data is imprinted to establish a one to one connectivity between the parts to ensure a good quality of interface for the volume mesh for a proper conduction path
● Fluid and solid parts are modeled separately , the Temperature and Heat transfer coefficient are mapped back and forth between the fluid and solid for two to three cycles till the solution is converged in the solid model.
● Once the flow simulation is converged , Temperature and Heat transfer coefficient is mapped onto the solid model where the radiation effect is also included
● From the solid the Temperature and Heat transfer coefficient is mapped back to fluid model
● Mapping between the fluid and the solid model is done for two - three cycles till the solution is converged in the solid model
● Aerodynamic Analysis - Predict drag,lift and other aerodynamic forces on the vehicle in addition to the flow distribution on the surface of the vehicle.
● Passenger Comfort Analysis - Identify low velocity around the mannequins for various duct configurations
● Exhaust Manifold and Catalytic Converter Analysis - Determine heat transfer in the exhaust manifold of the engine, and analyze the performance of catalytic converter.
Daimler Benz Research & Technology, Bangalore, India : Senior CFD Engineer -Consultant (Feb 06 - Dec 06)
Projects - Vehicle Thermal Management
● Simulation of under-hood/underbody analyses of several designs of passenger vehicles to evaluate the following parameters :
Mass flux through grill openings, Heat transfer across the radiator and condenser , Temperature and Heat flux distribution across various components , Pressure and Velocity distribution in the vehicle
CSM Software Pvt Ltd, Bangalore, India : Application Engineer (Oct 03- Feb 06)
I was responsible for carrying out the following tasks using STAR-CD
● Under-hood simulation: Front end analyses of passenger vehicle to determine the heat transfer across the heat exchangers and optimization of fan
● CFD analysis of passenger vehicle grille to optimize grille configuration based on the mass flux distribution across the grille and the bumper opening
● External aerodynamic analysis of truck to predict the pressure and drag distribution across the truck
● Cabin passenger comfort analysis of a vehicle to evaluate the velocity and temperature distribution inside the cabin and around the mannequin
● CFD analysis to ascertain the noise induced by the flow over a shallow cavity
Research Experience
Graduate Assistant – Research in Syracuse University (Feb 2007 - Oct 2008)
● Heat and Moisture Transport Modeling for a Protective Garment with an Active Sweating Device using CFD code CHAMPS.
● CFD simulation for bluff bodies using K-epsilon and LES using STAR-CD
● Course work Project: Flow field measurements around a thermal manikin using STAR-CD
Institute of Armament Technology IAT,Defense Research and Development Organization , Pune , India - Project Scientist June 2002 – June 2003
● Supersonic Flow Impingement and Confinement studies of Rocket Plume
● Tasks involved :
Literature review relevant to the problem under investigation
Static tests and evaluation with flat deflector, closed duct and open duct to carry out Pressure and Heat Flux measurements
Computational Analysis using CFD code “Fluent”
Preparing technical documents and reports based on experimental and computational results
Awards and Conference:
● Best Employee of the month: CSM Software for the work on the under hood simulation of passenger vehicle using CFD code Es-uhood.
● Conference: 1000 Islands Fluid Dynamics Conference 2008, Ontario, Canada: Flow field simulation around a cylindrical turret