Fluid mechanics is the study of fluids (gases and liquids)
either in motion or at rest and it is divided to major
disciplines: fluid statics (fluids at rest) and fluid
dynamics (fluid in motion). Computational Fluid Dynamics
(CFD) is one of three branches of fluid dynamics dedicated
to study of fluids in motion.
Experimental and theoretical (analytical) fluid dynamics
were two widely practiced branches before 1970's and 1980's.
Theoretical fluid dynamics involves solution of differential
equations while Experimental fluid dynamics involves
building a physical model and testing that model in a wind
tunnel or other facilities. However, with advent of digital
computer, a third approach was born.
The differential equations describing fluid dynamics
problems are generally a system of non-linear partial
differential equations with irregular boundaries, which are
often too difficult to solve without the aid of computers.
Additionally, experimental fluid dynamics often has to deal
with challenges such as instrumentation, intrusive
measurements, testing at small scale, high cost of model and
testing, long fabrication lead-time, and limited
information.
CFD is computer-based simulation of predicting what will
happen when fluids (gases & liquids) flow and complements
experimental and analytical approaches by providing an
alternative cost-effective mean of simulating real-life flow
problems.
CFD has now become a leading research, educational, and
design tool. It is being used to better understand physical
events and processes and perform numerical experiments
(analogous to wind tunnel tests). As an education tool, CFD
is used to understand concepts of fluid flow and expose
students to expanded range of flow problems. Most
importantly, CFD has now become a design tool by providing
capabilities to facilitate design optimization, reduce
design bottlenecks and improve engineering performance,
enhance communications, and answer what-if questions.
CFD has become an essential tool to predict fluid motion,
which may include heat and mass transfer, phase change, and
mechanical movement of boundaries. CFD is now routinely used
to solve complex flow problems in the aerospace, automotive,
chemical, electronics, environmental, biomedical industries.
The course is completely code independent.
A full set of notes in PDF format will be available for
download. Each session is presented live and is available
for review via a streamable recording.
Personal passwords are provided to allow you to access e-
learning backup material via our special bulletin board.
Reading lists, homework submissions, supplementary data are
all stored as files on the bulletin board.
Interaction via the bulletin board is strongly encouraged to
obtain the most from the e-learning class. Typically the
board runs for 4 weeks after the last live class sessions,
giving you plenty of time to catch up with homework, review
and ask questions.
Note: homework is purely voluntary!
Course Process and Details
This course is completely code independent. No software is
required.
E-learning courses are great alternatives and complements
for continued education as they offer convenience and
eliminate the need to travel. This e-learning course runs
over a four week period with a single two hour session per
week.
This course offers the attendees the fundamental knowledge
for using CFD in real life engineering applications. Through
a simple and moderately technical approach, this course
describes the steps in the CFD process and provides benefits
and issues for using CFD analysis in understanding of
complicated flow phenomena and its use in the design
process. Best practices for reducing errors and
uncertainties in CFD analysis are also presented in the
course. Many of the governing equations will be presented
for illustration purposes and they would be dealt in depth
in this course. Strong effort is made for the course to be
CFD software neutral. However, examples from some of the
more well known and popular software will be used throughout
the sessions.
Interaction is encouraged throughout the course. Students
are welcome to send in problems from industry and these will
be discussed as time permits.
Full notes are provided for the students, together with
personal passwords for e-learning backup material, bulletin
board access, etc.
Students will join the audio portion of the meetings by
utilizing the VoIP (i.e. headset connected to the computer
via headphone and microphone jacks) or by calling into a
standard toll line. If you are interested in additional
pricing to call-in using a toll-free line, please send an
email to: e-learning @ nafems.org .
Who Should Attend?
The target audience for this course is engineers and
managers with limited CFD knowledge who are interested or
considering to incorporate CFD in their design practices.
The material that is presented is independent of any
particular software package, making it ideally suited to
current and potential users of all commercial and non-
commercial CFD software systems.
E-learning classes are ideal for companies with a group of
engineers requiring training. E-learning classes can be
provided to suit your needs and timescale. Contact us to
discuss your requirements.
Course Program
Note:This is a four-week course. Each session represents one
2-hour session each week.
Session 1 - CFD: Definition, Role, & Basic Formulation
Tuesday September 20th 2011
9am EDT, 6am PDT, 2pm WEST/BST, 3pm CEST
• What is CFD and why is it needed?
• CFD use and its role in industry
• Basic Formulation
- Finite difference
- Finite volume
Session 2 - Governing Equations
Tuesday September 27th 2011
9am EDT, 6am PDT, 2pm WEST/BST, 3pm CEST
• Governing equations
• Simplification & model equations
• Turbulence
• Heat Transfer
Session 3 - CFD Process
Tuesday October 4th 2011
9am EDT, 6am PDT, 2pm WEST/BST, 3pm CEST
• The CFD Steps
• Geometry & mesh generation
• Setup, initialization, & boundary conditions
• Solving & monitoring
• Analysis & visualization
• Assessing accuracy of numerical solutions
Session 4 - Best Practices & Chronicle
Tuesday October 11th 2011
9am EDT, 6am PDT, 2pm WEST/BST, 3pm CEST
• Use of CFD for engineering estimates
• Presenting computational results in a useful fashion
• CFD Issues
• A brief history of CFD
• CFD future
|