...

Figure 14. Effect of Turbulence Model on Pressure Coefficient Drop
 
Image Added
Figure 15. Contours of Velocity Magnitude for Different Turbulence Model
 
 

 4. Conclusions

 Appendix A

/ Journal File for GAMBIT 2.4.6, Database 2.4.4, ntx86 SP2007051421
/ Identifier "Clearance 1.5W"
/ File opened for write Fri Apr 18 10:07:42 2008.
undo begingroup

$clearance = 0.1

coordinate modify "c_sys.1" xyplane xaxis add 0 AND 0.1 AND 0.2 reset snap \
  lines
coordinate modify "c_sys.1" xyplane yaxis reset snap lines
window modify coordinates "c_sys.1" xyplane grid
undo endgroup
undo begingroup
coordinate modify "c_sys.1" xyplane xaxis add 0 AND 0.1 AND 0.2 reset snap \
  lines
coordinate modify "c_sys.1" xyplane yaxis add 0 AND 0.05 AND 0.1 AND 0.15 AND \
  0.2 AND 0.25 AND 0.3 AND 0.35 AND 0.4 AND 0.45 AND 0.5 AND 0.55 AND 0.6 AND \
  0.65 AND 0.7 AND 0.75 AND 0.8 AND 0.85 AND 0.9 AND 0.95 AND 1 reset snap \
  lines
window modify coordinates "c_sys.1" xyplane grid
undo endgroup
vertex create coordinates 0 0 0
vertex create coordinates 0.1 0 0
vertex create coordinates 0.2 0 0
vertex create coordinates 0.2 $clearance 0
vertex create coordinates 0.1 $clearance 0
vertex create coordinates 0 $clearance 0
vertex create coordinates 0.2 1 0
vertex create coordinates 0.1 1 0
vertex create coordinates 0 1 0
edge create straight "vertex.4" "vertex.7"
edge create straight "vertex.5" "vertex.8"
edge create straight "vertex.6" "vertex.9"
edge create straight "vertex.8" "vertex.9"
edge create straight "vertex.7" "vertex.8"
edge create straight "vertex.3" "vertex.4"
edge create straight "vertex.2" "vertex.5"
edge create straight "vertex.1" "vertex.6"
edge create straight "vertex.5" "vertex.6"
edge create straight "vertex.4" "vertex.5"
edge create straight "vertex.2" "vertex.3"
edge create straight "vertex.1" "vertex.2"
undo begingroup
coordinate modify "c_sys.1" xyplane xaxis add 0 AND 0.1 AND 0.2 reset snap \
  lines
coordinate modify "c_sys.1" xyplane yaxis add 0 AND 0.05 AND 0.1 AND 0.15 AND \
  0.2 AND 0.25 AND 0.3 AND 0.35 AND 0.4 AND 0.45 AND 0.5 AND 0.55 AND 0.6 AND \
  0.65 AND 0.7 AND 0.75 AND 0.8 AND 0.85 AND 0.9 AND 0.95 AND 1 reset snap \
  lines
window modify coordinates "c_sys.1" xyplane nogrid
undo endgroup
face create wireframe "edge.4" "edge.2" "edge.9" "edge.3" real
face create wireframe "edge.5" "edge.1" "edge.10" "edge.2" real
face create wireframe "edge.6" "edge.11" "edge.7" "edge.10" real
face create wireframe "edge.12" "edge.7" "edge.9" "edge.8" real
undo begingroup
/ERROR occurred in the next command!
blayer create first 0 growth 1.2 total 0 rows 4 transition 1 trows 0 uniform
undo endgroup
undo begingroup
blayer create first 0.0003 growth 1.25 total 0.0077407 rows 9 transition 1 \
  trows 0 uniform
blayer attach "b_layer.1" face "face.2" "face.3" "face.3" "face.4" "face.1" \
  "face.2" "face.1" "face.4" "face.4" "face.3" edge "edge.1" "edge.6" \
  "edge.7" "edge.7" "edge.2" "edge.2" "edge.3" "edge.8" "edge.12" "edge.11" \
  add
undo endgroup
undo begingroup
edge picklink "edge.3" "edge.2" "edge.1"
edge mesh "edge.1" "edge.2" "edge.3" successive ratio1 1.01 size 0.005
undo endgroup
undo begingroup
edge picklink "edge.6" "edge.7" "edge.8"
edge mesh "edge.8" "edge.7" "edge.6" successive ratio1 1 size 0.002
undo endgroup
undo begingroup
edge picklink "edge.4" "edge.5" "edge.10" "edge.9" "edge.11" "edge.12"
edge mesh "edge.12" "edge.11" "edge.9" "edge.10" "edge.5" "edge.4" successive \
  ratio1 1 size 0.002
undo endgroup
face mesh "face.2" map size 1
face mesh "face.1" map size 1
face mesh "face.3" map size 1
face mesh "face.4" map size 1
physics create "Inlet" btype "VELOCITY_INLET" edge "edge.4"
physics create "Outlet" btype "PRESSURE_OUTLET" edge "edge.5"
physics create "Left_Wall" btype "WALL" edge "edge.3" "edge.8"
physics create "Middle_Wall" btype "WALL" edge "edge.2"
physics create "Right_Wall" btype "WALL" edge "edge.1" "edge.6"
physics create "Bottom_Wall" btype "WALL" edge "edge.12" "edge.11"
export fluent5 "Clearance 1.5W.msh" nozval
save