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Training | Courses |
CFD Analysis | DACFD |
Mini Projects |
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Verification and Validation
in CFD |
In this
project, investigation has been done on different
Verification and Validation methods in CFD. Various
parameters like size of domain, iterative convergence, grid
convergence and confidence interval for verification and
validation of CFD results were studied by using an
aerodynamic model as a test case
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Flow Over Generic Car Model
(Ahmed Body) |
Simulation
of flow over the Ahmed body was done to understand the flow
process involved in drag production. Through understanding
the mechanism involved in generating drag, one should be
able to design a car to minimize drag and therefore the
minimize fuel consumption and maximize performance. The
project involved the creation of a generic car model (Ahmed
Body) using pre-the processing tool (GAMBIT) and surface
mesh was created using the same. Mesh refining, prism layer
creation and volume meshing was done in T-Grid. Fluent
6.2.16 has used as the solver.
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Onera M6 Wing As
Validation Test Case For CFD |
The
standard validation case for transonic flow regime is
studied in this project. A parametric definition of
ONERA M6 wing was used. A journal file was created using
C-Programming and utilized in GAMBIT for the creating
geometry and surface mesh. Volume mesh creation and
refinement was done using T-Grid. The solution obtained
by Fluent solver is used for comparing different
parameters like coefficient of drag and lift with the
available experimental values.
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Lid
Driven Cavity (LDC) |
Lid
driven cavity is standard test case which is followed by
CFD programmers for validating their code. The lid
driven cavity flow was simulated using GAMBIT and Tgrid
as the preprocessing tools and Fluent as the solver.
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Laminar and Turbulent flow over flat plate |
Flow
over a flat plate gives the idea of the viscous effects
and convective heat transfer of the fluid flow over a
surface. Fluid flow and heat transfer parameters like
coefficient of drag, heat transfer coefficient etc. are
calculated for both laminar and turbulent flow.
Structured grid generation software GridZ was used for
mesh creation and Fluent was used for solving Navier
Stokes Equation along with energy equation. This data
was compared with the empirical correlations.
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CFD Modeling and Analysis of Vortex Tube |
CFD analysis was conducted towards optimization
of the critical parameters of a vortex tube such
as aspect ratio and cold end diameter to obtain
maximum temperature drop (sub-zero temperature).
GAMBIT was used for modeling and meshing of
vortex tube. FLUENT was used for the analysis
purpose.
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Code Development for 2D Lid Driven
Cavity flow Simulation |
2D unsteady
incompressible flow was considered for
simulation. The governing equations were
Non-Dimensionalised and Stream function-Vorticity
formulation was made. Successive
Over-relaxation Method (SOR) was used for
solving the partial differential equations.
Gnuplot was used for post-processing
purposes and the code was written in C
language.
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Simulation
of rotating flows driven by
axisymmetric agitators in rotating
cylinder |
The basic
intention behind this mini project work
was to analyze the flow behavior, when
it is agitated by Rotating axisymmetric
agitators (rotating in clockwise
direction). The cylinder containing
fluid is rotating in anticlockwise
direction. The analysis was carried out
on FLUENT and CFX.
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