Title Slide Subtitle 2011 COMSOL. All rights reserved.
Slide 2
Background and Motivation Describe the technical application.
Whats the motivation for modeling? What questions is the model
supposed to answer? How are we going to model the application in
COMSOL / What makes COMSOL especially suited to set up and simulate
this application?
Slide 3
Geometry and Operating Conditions Show the model geometry and
illustrate operating principles. Indicate modeling assumptions, for
example, symmetry or infinite elements. Free flow in the heating
tubes Symmetry reduces the model geometry Porous media flow in the
catalytic bed
Slide 4
Modeling Interfaces Explain why an interface or a set of
interfaces are used. Here you could show selections in the model
wizard and selected equations that are solved for.
Slide 5
Model Setup If relevant, highlight features that facilitate
model set up, for example, Multiphysics couplings or Material
selections. If relevant, explain unique modeling techniques used in
the example, for instance, global equations or integral
constraints.
Slide 6
Results Answer the modeling questions from the Background and
Motivation slide. Maintain width/height ratio when showing COMSOL
GUI component and other graphics clips. If you want to include a
movie, export as animated gif from COMSOL. Do not use graphics or
scans from other sources than COMSOL. Place a shadow behind
screenshots and other pictures to give them some definition. Use
Drop shadow Rectangle from the Picture Tools Format menu.
Slide 7
Friction Stir Welding of Aluminum
Slide 8
Friction Stir Welding - Working principle Pore free weld joint
No residual stresses due to shrinking Welding of dissimilar
materials and plastics possible Joint to weld Rotating weld
tool
Slide 9
Friction Stir Welding Weld tool geometry Tool body generates
friction heat on interface surfaces Central pin create deep weld
joint
Slide 10
Friction Stir Welding Heat transfer modeling General Heat
Transfer Application Conduction, convection and radiation
Convection cooling of surfaces: h-parameters Surface and central
pin heat sources, q=f(Ff,r, ) Material feed: convective
velocity
Slide 11
Friction Welding Stationary result Temperature distribution,
melting avoided! Feed rate optimization Cooling effects Feed rate:
1.6 mm/s Rotation speed: 640 rev/s Tool pressure: 25 kN/m2 T melt :
933 K
