CFD Engineer

OBJECTIVE

A career as an active team member in a group involved in applications of Computational Fluid Dynamics for optimizing process and design.

EDUCATION

PhD – University of California Davis Graduated: Dec 2007

Specialization: Computational modeling of flow field inside human stomach using FLUENT.

MS – University of California Davis Graduated: Dec 2005

Specialization: Modeling and measurement of fluid flow and heat transfer during air impingement.

Years of Experience using CFD: 6+.

SKILLS

Modeling, simulation, and design: (Air flow, Heat transfer, Particle flow, Air conditioning, Aeroacoustics)

FLUENT (with udf), Star CCM+ (with javaScript), Flowmaster, EDEM (with API), Hypermesh, T-Grid (including wrapper), Gambit, Ensight, Pro-E, Solid Works, AutoCAD.

Programming: C, C++, Action Scrip, PHP, PLC, FORTRAN, Matlab, HTML, SAS.

Instrumentation: Particle image velocimetry (Air flow measurement), Data acquisition, Hot air anemometer, Building electronic circuits, Texture analyzer, Viscometer.

WORK EXPERIENCE

• Case New Holland, Burr Ridge: Working as a CFD Engineer since January 2008.

Key Roles and Responsibilities:

o To use the various preprocessing, solver and post-processing CFD tools improve the fluid flow and heat transfer performance of the vehicle in whole or individual parts.

o To assemble and clean the geometry using preprocessing tools.

o To identify the regions of interest for fluid flow and heat transfer and create the surface mesh using wrapper (StarCCM+ or T-Grid) of good quality.

o To select the solvers (turbulence model, heat transfer methods, steady/unsteady, fluid properties etc) based on the input and output requirements.

o To extract, convert and sanity check the supplier/platform data to be applied in to the model and define appropriate boundary conditions based on the scale and surroundings of the system.

o To conduct post-processing in form of numbers, contour/vector images and ensight animation files and to sanity check the data.

o To communicate the results and finding to the design team and propose the potential solutions and design changes and if necessary conduct the subsequent design iterations.

o To prepare presentations and to write the reports with detailed description of problem, procedure, results and solutions.

o To continuously improve/update the modeling practices for a better correlation between CFD and test data.

CFD Projects (Star CCM+ and FLUENT)

o Modeled and optimized the underhood air flow and heat transfer through heat exchangers for multiple platforms of Case and New Holland tractors models.

o Conducted thermal analysis of gear box design of a vehicle, under stress conditions.

o Performed computational analysis of underhood cooling of the a Dozer.

o Performed computational analysis and provided recommendations for different designs of pneumatic seeders and planters.

o Computational modeling and optimization of pre-cleaner air filter designs for a tractor.

Particle and air flow (DEM and CFD coupleled)

o Modeled two phase flow of seeds and air inside the pneumatic seed planter.

o Optimize the cleaning fan blade design to achieve a uniform air flow through the cleaning system of a combine harvester.

o Modeled two-phase flow of chaff and air in spreader system for combine harvester.

o Modeled the particle (seed) flow inside the rotor of a combine harvester using EDEM.

o Modeled particles flow in grape harvester chaff separator system.

o Modeled the flow behavior and dust accumulation in the air filter and heat exchanger for a sprayer vehicle.

Air conditioning (Flowmaster)

o Modeled AC loop and suggested recommendations for the sizes of compressor and reciever drier inside a utility tractor.

o Performed benchmark analysis for AC system inside an all purpose tractor.

RELEVANT COURSES TAKEN AT UC DAVIS

• Advanced Fluid Mechanics and Heat Transfer-I (MAE 210A).

• Advanced Fluid Mechanics and Heat Transfer-II (MAE 210B).

• Advanced Turbulence Modeling (MAE 213).

• Measurement Methods in Fluid Mechanics and Combustion ((MAE 208).

• Numerical methods (EAD 115).

• Design and Analysis of Engineering Experiments (EBS 265).

• Engineering Experimentation and Uncertainty Analysis (MAE 207).

*MAE: classes taken in Department of Mechanical and Aeronautical Engineering

ACADEMIC DISTINCTIONS

• 1st place in poster competition presented at University of Massachusetts, Amherst, 2007.

• Won 1st place in graduate Research Paper Competition award, IFT 2005.

• Awarded the gold medal for “Best Student”, year 2003-2004 TNAU.

• Ranked 1st in the class during the four years of undergraduate study.

• Semi-finalist of Sigma-pi-tau paper competition award, IFT 2007.

• Ranked 2nd in high school science project competition at state level during the year 1997.

PROJECTS AT UC DAVIS

PhD Project

Developed a computational fluid dynamics (CFD) model of human stomach to study the fluid flow and breakdown kinetics of food particulates. The model can be used to design the processing conditions for food products containing targeted delivery nutrients for human food.

MS Project

Used CFD and Particle image velocimetry (PIV) to model and validate the flow field along with heat transfer in air jet impingement. Optimized the processing conditions for cooling an object under air jet impingement.

Other Projects

• Developed a CFD model of a refrigerated warehouse with food pellets and analyzed the flow and heat transfer inside the room.

• Modeled the peristaltic flow inside a tubular geometry using FLUENT and Gambit.

• Modeled (using Fluent and gambit) and validated (using PIV) the shear stress on a particle inside a rotating flow field.

• Modeled and measured the flow field around various shaped baked food products during air jet impingement using Fluent, Gambit and PIV.

• Studied the decomposition of enteric encapsulated food particles in simulated stomach conditions.

PUBLICATIONS AND PRESENTATIONS

Singh, SK and Singh RP (2007). Breakdown Kinetics of Food Particulates in Human Stomach. Institute of Food Technologists, annual meeting, Chicago.

Singh, SK and Singh RP (2007). Modeling Flow Field in a Human Stomach. Institute of Food Technologists, annual meeting, Chicago.

Singh, SK and Singh RP (2007). Air Impingement Cooling of Cylindrical Objects using Slot Jets. International Journal of Modelling, Identification and Control. In press.

Erdogdu, F, Ferrua, MJ, Singh, SK and Singh, RP (2006). Air-impingement cooling of boiled eggs: Analysis of flow visualization and heat transfer. Journal of Food Engineering, 79(3), 920-928.

Singh, SK and Singh RP (2006). Visualization of the flow field in air impingement systems. Institute of Food Technologists, annual meeting, Orlando

Singh, SK and Singh RP (2005). Air impingement cooling of cylindrical object using slot jet: Unsteady state heat transfer. Institute of Food Technologists, annual meeting. New Orleans.

Voit, DC, Ferrua, MJ, Santos, MR, Singh, SK & Singh, RP. (2005). Evaluation of a multipurpose fruit and vegetable processor for long duration space missions. Institute of Food Technologists, annual meeting, New Orleans. Relevant .

Keywords: CFD, Computational Fluid Dynamics, Heat transfer, Air flow, Particle flow, Computational Modeling, Vehicle thermal management, Airoacoustics, Aerodynamics, Air Conditioning and Refrigeration, Climate control, Air filter, precleaner, Heat Exchangers (Radiator, CAC, Oil Cooler), Underhood, Fan, Fluent, StarCCM+, Flowmaster, EDEM, Turbulence, Multiphase flow, Two phase, enteric coating, encapsulation.

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