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For the resume containing
personal,
academic
and career information, please click here.
A. Details of research work during Ph. D. and M. Tech.
1) Research topic in M. Tech.: ?Augmentation of Heat Transfer using
in-line propellers?.
This was an experimental work wherein in-line propellers were placed
in the flow and heat transfer augmentation that resulted in a cross flow
heat exchanger was studied. I was involved in all the stages- that is in
designing, getting the parts manufactured, assembly and setting up the
experiment, to collecting and analyzing the data.
The following paper was published based on the M. Tech. work:
1. ?Heat Transfer Augmentation via Turbulence Promotion? by R. Chaturvedi
and K. Kant, Journal of Energy, Heat and Mass Transfer (1991).
2) Research topic in Ph.D.: ?Study of Non Reflecting Boundary Conditions?
The Ph.D. project consists of formulating, analyzing and applying Non
Reflecting Boundary Conditions (NRBC) to achieve small size of the spatial
domain in which we want to solve for a wave field numerically. The equations
considered are compressible Navier Stokes equations and linearized wave
equation. While solving for the wave field where the problem is formulated
over a large/infinite spatial domain, but the region of interest is a small
(near) region, one truncates the large physical domain to a smaller computational
domain. However, one has to be careful that appropriate Non Reflecting
Boundary Conditions are specified on the truncation boundary thus introduced,
so that one does not get spurious reflections in the computed solution.
Using NRBC?s, a methodology has been developed and utilized for solving the pressure field in a Pressurized Heavy Water Reactor subsequent to the failure of a channel. Linear wave equation along with a class of Non Reflecting Boundary Conditions for such equations have been used to mathematically model the problem. A well posedness analysis has been carried out for the resulting model. Discrete equations have then been utilized to obtain numerical simulations for the PHWR geometry. The method can also be applied to similar large heat exchangers.
The other problem that has been dealt with in the Ph.D. work involves the proposal of new Non Reflecting Boundary Conditions (NRBC) for the compressible Navier Stokes equations. These are a generalization of a certain class of NRBC?s that are available in literature for similar governing differential equations. Using this generalization, it has been shown that the NRBC?s available in the literature are not optimal. For this purpose, steady state solution for transonic flow over a simple geometry (flat plate) has been obtained using a time marching (McCormack?s) technique.
Link to thesis summary in pdf format: http://RajivC.tripod.com/thesis-summary.pdf
Link to the entire thesis in pdf format: http://RajivC.tripod.com/thesis.pdf
(Disclaimer: Except for a couple of figures
that were drafted by hand, and have been redone in electronic format, this
PDF file is an exact replica of the paper bound thesis submitted to the
university)
Papers based on Ph.D. work:
1. ?Non Reflecting Boundary Conditions and Their Use in Estimating
the Effects of Coolant Channel Failure in a PHWR?, Rajiv Chaturvedi and
Debi Prasad Roy, Nuclear Engineering and Design, (1999).
2. ?Some Formulations of Local Non Reflecting Boundary Conditions?,
Rajiv Chaturvedi and Debi Prasad Roy, 20th Fluid Mechanics and Fluid Power
Conference, 1993.
3. ?Non Reflecting Boundary Conditions Applied to Water Wave Problems?,
Rajiv Chaturvedi and Debi Prasad Roy, 21st Fluid Mechanics and Fluid Power
Conference, 1994.
4. ?Two Parameter Non Reflecting Boundary Conditions for Compressible
Navier Stokes Equations?, Rajiv Chaturvedi and Debi Prasad Roy, communicated.
Technical expertise gained in Ph.D. Work:
The work required skills at analysis and Finite Difference Algorithms
in Computational Fluid Dynamics. The Finite Element Method (FEM) was used
for a problem that was solved; of the papers mentioned above, paper number
3 reports this problem. Finite Differences (Central differences) have been
used for paper number 1 to obtain the highly transient solution for a complex
geometry but a relatively simple set of governing differential equations.
Paper number 4 uses a time marching finite difference scheme for obtaining
a steady state solution for a simple geometry but complex governing differential
equations and boundary conditions.
Coding from scratch for the above work was carried out mainly in C in an Unix environment on DEC alpha and Sun machines. Some of the software packages and tools used were Matlab, gdb, dbx, LaTeX, gnuplot, etc.
List of Publications:
1. ?Heat Transfer Augmentation via Turbulence Promotion? by R. Chaturvedi
and K. Kant, Journal of Energy, Heat and Mass Transfer (1991).
2. ?Non Reflecting Boundary Conditions and Their Use in Estimating
the Effects of Coolant Channel Failure in a PHWR?, Rajiv Chaturvedi and
D. P. Roy, Nuclear Engineering and Design, (1999).
3. ?Some Formulations of Local Non Reflecting Boundary Conditions?,
Rajiv Chaturvedi and Debi Prasad Roy, 20th Fluid Mechanics and Fluid Power
Conference, 1993.
4. ?Non Reflecting Boundary Conditions Applied to Water Wave Problems?,
Rajiv Chaturvedi and Debi Prasad Roy, 21st Fluid Mechanics and Fluid Power
Conference, 1994.
5. ?Two Parameter Non Reflecting Boundary Conditions for Compressible
Navier Stokes Equations?, Rajiv Chaturvedi and Debi Prasad Roy, communicated.
B. Software Projects completed for Computervision R&D India Pvt. Ltd. / PTC
Computervision Corporation (CV) has been in the field of product development software for 26 years. CADDS5 is a CAD product whose code is written in C, C++, FORTRAN and Lisp. CVNC is the CAM application written for it, in C, C++ and FORTRAN. In addition, company specific languages like NCGRAM are also used. Both these products, in addition to other Computervision products, are well established in the high end manufacturing industries, especially, aircraft, automotive, and shipbuilding industries.
Computervision merged with Parametric Technology Corporation (PTC) in December 1997, forming the sixth largest independent software company in the world at that time. They are located on the web at http://www.ptc.com .
I was involved in the following projects for CV/PTC:
1) Output enhancements:
The Project titled ?Output enhancements?, required enhancements
to the output capabilities of the NC software (CADDS5 Rev 5.2), and a change
in the way output was generated for surface machining and profiling Toolpath
Generators. Thus output of contact point of the tool on the entity being
machined, the surface normal of the entity at that point, and the tool
axis were required to be output (termed DASSAULT output in industry) for
the part program to compensate for the cutter geometry correctly in 3,
4, and 5 axis tool motion.
It was done for Airbus, but serves the general airbus and automotive markets to better utilize the NC-machine tools that can minimize machining time by improving surface finish with less tool motion.
I handled the 3 and 5-axis surface machining commands from India, while the UK CAM group of Computervision handled the profiling command. The part I handled so far has proved to be bug-free.
2) Turning and facing machining requirements for rolls royce:
This project required enhancements to the existing CVNC-T2 module for
turning and facing. In addition to enhancement of functionality, full support
for tool shape recognition was also realized in the present module. These
enhancements were addressed to Rolls Royce needs, but are broad enough
to support majority of requirements of the general industry.
OOAD (Object Oriented Analysis and Design) of this was undertaken using OMTool.
3) Grooving requirements for rolls royce:
Another enhancement to Turning capabilities for Rolls Royce, this enhancement
provides capability to handle complex grooves at any angle, and support
for tool shape recognition.
Worked on review of functional specifications and OOAD for this project.
4) Intersection machining quality project:
Required quality improvement of intersection machining capability of
CVNC 5-axis software (SURFINT command of CVNC). Changes in iteration algorithm
were introduced by me to enhance/improve the functionality. A number of
features not present in this module earlier were incorporated, I introduced
novel solutions for this purpose. (For example, starting/ending the tool
path at surfaces (Part, Drive and Check surfaces) of choice for which an
arbitrary point near the surface had been specified.) This project was
carried out for Airbus.
C. Software Projects completed for Tata Consultancy Services
Tata Consultancy Services (TCS) is India's leading Information Technology (IT) and Management Consultancy (MC) organization. From 1968 onwards, it has provided services to business, industry and government worldwide. Its operations span over 40 countries. It has executed projects in the fields of financial services, manufacturing industries, energy, healthcare, transport, communications and tourism, covering all aspects of systems and software engineering. TCS web-page: http://www.tcs.com .
1. May-August 1998
Title : Oracle Applications Training Setup
Period : May 1998 ? August 1998
Responsibilities : Setting up hardware and installation
of Oracle Applications. Trained a number of batches on Oracle Inventory
and Oracle Purchasing.
The Project : Setting up hardware / installation
of Oracle Applications training at TCS.
Hardware : Pentium machines.
Operating System : Win NT server, Win 95 clients
Languages : Oracle 7.3
Special Software : Oracle Applications version 10.7
Work Location(s) : TCS, Malad, Bombay, INDIA.
2. September 1998-January 1999
Title : Information Systems and Technology Plan
for Bilakhia group of companies- Mitsu Industries Limited (MIL) and
Hindustan Inks and Resins Limited (HIRL). MIL is in the business of manufacturing
and sales (including exports) of pesticides, and HIRL manufactures various
kinds of printing inks, wire enamels, etc.
Period : September 1998 ? January 1999
Position : Project Leader
Responsibilities : The responsibilities of a PL-
obtaining and coordinating resources, reporting, planning and reviewing
the work, as well as sharing the work of the team.
The Project : This project involved studying various
offices, factories and warehouses/depots of the two companies mentioned
above, and devising strategies for hardware, software, data communication
and networking for them. Evaluation of ERP packages to determine the most
suitable ERP solution for them was carried out- the packages evaluated
were SAP R/3, BaaN and Oracle Applications. A phased manner of implementation
of the above plan was suggested, which is being carried out currently.
The report was accepted without any modifications.
Hardware : Pentium machines
Operating System : Win 95 and 98
Work Location(s) : Vapi, Daman, Delhi, Bombay (India).
3. June 1999- August 1999
Title : Production Support plan for Conversion
and Interfaces for Oracle Applications Implementations- Cummins Oil
Engines Inc., Southern Indiana Operations, Columbus, Indiana 47201, USA.
Period : June 1999 ? August 1999
Position : Production support coordinator
Responsibilities : Devising structures and procedures
for continued production support team (on-site and off-shore) after the
implementation of Oracle Applications at various client sites in Southern
Indiana (COB, CEP, FSP, and Scania sites) for various Conversions and Interfaces
between Oracle Applications ERP system and legacy systems. Assigning persons
to the structure.
Hardware : Pentium machines
Operating System : Win NT
Work Location(s) : Columbus, Indiana 47201, USA.
4. September 1999- March 2000
Title : Technical Support to marketing, conducting
training, interviewing, writing proposals, estimates, and similar activities.
Period : September 1999 ? March 2000
Responsibilities : Technical support to marketing,
organizing training, interviewing prospective candidates for TCS, writing
proposals for new projects, estimates, and similar activities.
Work Location(s) : Bombay, India.
D. Software Projects for Eftia OSS Solutions
Eftia was founded in 1997. It is headquartered in Ottawa, Canada, with sales and project offices across North America and around the globe. Their India development center started functioning in March 2000. Eftia is in the business of developing, deploying, and managing Operational Support Systems (OSS) solutions for telecom network and service providers. Eftia web-page: http://www.eftia.com .
1. Activities related to software development environment setup,
departmental structure, bare bone processes for the Product Development
Department
Period : April 2000 - May 2000
Responsibilities : Envisioning, planning and communicating
(a)departmental structure, (b)Software Development Environment setup, (c)evaluating
software tools, (d)initiation of work on the Rational Unified Process
Work Location(s) : Eftia OSS Solutions Asia/Pacific
Private Limited, Bombay, INDIA.
2. Circuit Viewer
The Project : Circuit Viewer provides
the capability of a graphical display of the circuit design created by
Telecommunications Service Providers. In the future releases of the product,
graphical editing and circuit designing capabilities will be added, thus
making it a miniature CAD product. Circuit Viewer is integrated with the
database of Master.Scribe, the flagship product of Eftia, from which it
gets data about the circuit to be displayed. In later release when circuit
editing and design capabilities are added, Circuit Viewer will also update
the Master.Scribe database. The rendering engine has been designed so as
to be as independent of the Master.Scribe database as possible, so that
any other source of similar data can be utilized for graphical display
(and design) of telecom circuits. In the first release, a minimal number
of symbols for representing telecom circuit elements have been provided,
refer to the description under the "Symbol Library" project below for more
on this. The coding has been carried out in Java, since the product is
required to be web enabled.
Title : Circuit Viewer
Period : May 2000 onwards
Position : Project Manager
Responsibilities : Devising the architecture of
the system, Object Oriented design of the system, Project planning, Obtaining
and coordinating resources, Reporting, Reviewing,QA procedures, providing
guidance to the team, allocating work, handling attrition,sharing the work
of the team including coding, setting up the integrated development environment
for development, introducing tools and helping the team on their usage.
Hardware : Sun server, Pentium workstations
Operating System : Solaris on server, NT on workstations
Work Location(s) : Eftia OSS Solutions Asia/Pacific
Private Limited, Bombay (India).
3. Evaluation of platforms for next gen products
Title : Information Systems and Technology Plan
for Bilakhia group of companies- Mitsu Industries Limited (MIL) and
Hindustan Inks and Resins Limited (HIRL). MIL is in the business of manufacturing
and sales (including exports) of pesticides, and HIRL manufactures various
kinds of printing inks, wire enamels, etc.
Period : July 2000
Position : Project Leader
Responsibilities : The responsibilities of a PL-
obtaining and coordinating resources, reporting, planning and reviewing
the work, as well as sharing the work of the team.
The Project : This project involved studying various
offices, factories and warehouses/depots of the two companies mentioned
above, and devising strategies for hardware, software, data communication
and networking for them. Evaluation of ERP packages to determine the most
suitable ERP solution for them was carried out- the packages evaluated
were SAP R/3, BaaN and Oracle Applications. A phased manner of implementation
of the above plan was suggested, which is being carried out currently.
The report was accepted without any modifications.
Hardware : Pentium machines
Operating System : Win 95 and 98
Work Location(s) : Vapi, Daman, Delhi, Bombay (India).
4. Symbols Library
Title : Information Systems and Technology Plan
for Bilakhia group of companies- Mitsu Industries Limited (MIL) and
Hindustan Inks and Resins Limited (HIRL). MIL is in the business of manufacturing
and sales (including exports) of pesticides, and HIRL manufactures various
kinds of printing inks, wire enamels, etc.
Period : July 2000
Position : Project Leader
Responsibilities : The responsibilities of a PL-
obtaining and coordinating resources, reporting, planning and reviewing
the work, as well as sharing the work of the team.
The Project : This project involved studying various
offices, factories and warehouses/depots of the two companies mentioned
above, and devising strategies for hardware, software, data communication
and networking for them. Evaluation of ERP packages to determine the most
suitable ERP solution for them was carried out- the packages evaluated
were SAP R/3, BaaN and Oracle Applications. A phased manner of implementation
of the above plan was suggested, which is being carried out currently.
The report was accepted without any modifications.
Hardware : Pentium machines
Operating System : Win 95 and 98
Work Location(s) : Vapi, Daman, Delhi, Bombay (India).
Courses/Workshops/Presentations Conducted/Attended:
| Year | Title | Location | Organized By |
| 1993 to 1998 | Presentation of papers at the 20th and 21st Fluid Mechanics and Fluid
Power (FMFP) Conference.
Presentation of seminar reports, dissertation, etc. |
Fluid Control Research Institute, Palakkad, India.
IIT, Bombay, India. |
FMFP society.
Dept. of Mech. Eng., IIT, Bombay, India. |
| 1997 | Conducted lecture on "Introduction to CAM and 3-axis machining" for the Documentation group at Computervision Corporation, Pune. | Computervision Corporation, Pune, India. | Computervision Corporation, Pune, India. |
| 1998 | Oracle Financials
Training received in the following
1. General Ledger,
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Tata Consultancy Services, Malad, Bombay, India. | Tata Consultancy Services, Bombay, India. |
| 1998
1999 |
Oracle Financials
Trained a number of batches (of 8 to 12
1. Inventory,
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Tata Consultancy Services, Malad, Bombay, India. | Tata Consultancy Services, Bombay, India. |
| 1998
1999 |
Presentations to the client as part of ISTP project | Hindustan Inks and Resins Limited, Vapi and Bombay, India. | Hindustan Inks and Resins Limited and Tata Consultancy Services. |
| 1999
2000 |
Organized training on Requirements Engineering | Tata Consultancy Services, Malad, Bombay, India. | Tata Consultancy Services, Bombay, India. |
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