Computational Fluid Dynamics - American University of … Seminar I.pdf · Computational Fluid...
Transcript of Computational Fluid Dynamics - American University of … Seminar I.pdf · Computational Fluid...
Maturing technology
adopted by increasing number of industries
still require expert users
An Expanding CFD Community
research and development
applications
Why CFD Seminars?
CFD Advantages
Research tool
Exploration of flow physics
Design Tool
Simulation based design rather than build and test
CFD Applications
Aerospace
Automotive
Chemical Processing
Power Generation
Wing-Body Interaction
Hypersonic Launch Vehicle
Aerodynamics
Engine Cooling
Polymerization reactor vessel - prediction of flow separation and residence time effects.
Shear rate distribution in twin-screw extruder simulation
Flow in a burner
Flow pattern through a water turbine.
newer CFD Applications
HVAC
Particle traces of copier VOC emissions colored by concentration level fall behind the copier and then circulate through the room before exiting the exhaust.
Interior Ventilation
BiomedicalMedtronic Blood Pump
Temperature and natural convection currents in the eye following laser heating.
Appliances
Surface-heat-flux plots of the No-Frost refrigerator and freezer compartments helped BOSCH-SIEMENS engineers to optimize the location of air inlets.
ConstructionFlow vectors and pressure
distribution on an offshore oil rig
Flow around cooling towers
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How Does CFD WorkGoverning Equation
as a system ofPartial Differential
Equations
System of Algebraic Equations
Numerical Solutions
Discretization Method
Finite DifferenceFinite VolumeFinite Element
Boundary Element
Solution Method
Combinations ofMultigrid MethodsIterative Solvers
Coupled-Uncoupled techniques
Geometric Discretization
Structured GridsCartesian, Non-Orthogonal)
Block Structured gridsUnstructured Grids
Chimera Grids
Geometric Discretization
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Geometric Discretization
Structured GridsCartesian, Non-Orthogonal)
Block Structured gridsUnstructured Grids
Chimera Grids
Equation Discretization
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Discretization Method
Finite DifferenceFinite VolumeFinite Element
Boundary Element
CFD Research at AUB
Started in early 1990’s
Development in many key areas
accuracy enhancement
robust algorithms
complex physics
http://webfea.fea.aub.edu.lb/fea/me/CFD