Date
2008/06/24 17:18:42
1. File Report
Table 1 File Information for 4 ladder7_001
2. Mesh Report
Table 2 Mesh Information for 4 ladder7_001
3. Physics Report
Table 3 Domain Physics for 4 ladder7_001
Table 4 Boundary Physics for 4 ladder7_001
4. User Data
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
5. Summary
Case | 4 ladder7_001 |
File Path | C:\Documents and Settings\hhwieman\My Documents\aps project\mechanical\cfx pixel\longer 4 ladder clean\4 ladder7_001.res |
File Date | 23 June 2008 |
File Time | 06:49:03 PM |
File Type | CFX5 |
File Version | 11.0 |
Fluids | Air at 25 C |
Solids | c dumb,si dumb |
Particles | None |
Domain | Nodes | Elements |
air | 381885 | 1966528 |
c | 126678 | 567312 |
si 1 | 15273 | 64471 |
si 2 | 19022 | 82280 |
si 3 | 19549 | 84756 |
si 4 | 18275 | 78491 |
All Domains | 580682 | 2843838 |
Name | Location | Type | Materials | Models |
air | B176 | Fluid | Air at 25 C | Heat Transfer Model = Thermal Energy Turbulence Model = k epsilon Turbulent Wall Functions = Scalable Buoyancy Model = Non Buoyant Domain Motion = Stationary |
c | B174 | Solid | c dumb | Domain Motion = Stationary |
si 1 | B175 | Solid | si dumb | Domain Motion = Stationary |
si 2 | B177 | Solid | si dumb | Domain Motion = Stationary |
si 3 | B178 | Solid | si dumb | Domain Motion = Stationary |
si 4 | B173 | Solid | si dumb | Domain Motion = Stationary |
Domain | Name | Location | Type | Settings |
air | inlet | inlet | Inlet | Flow Regime = Subsonic Heat Transfer = Static Temperature Static Temperature = 23 [C] Normal Speed = 8 [m s^-1] Mass And Momentum = Normal Speed Turbulence = Medium Intensity and Eddy Viscosity Ratio |
air | Default Fluid Solid Interface in air Side 1 | F217.176, F209.176, F150.176, F201.176, F191.176, F1... | Interface | Heat Transfer = Conservative Interface Flux Wall Influence On Flow = No Slip Wall Roughness = Smooth Wall |
air | outlet | outlet | Opening | Flow Direction = Normal to Boundary Condition Flow Regime = Subsonic Opening Temperature = 23 [C] Heat Transfer = Opening Temperature Mass And Momentum = Opening Pressure and Direction Relative Pressure = 0 [Pa] Turbulence = Medium Intensity and Eddy Viscosity Ratio |
air | air Default | F155.176, F156.176, F157.176, F158.176, F159.176, F1... | Wall | Heat Transfer = Adiabatic Wall Influence On Flow = No Slip Wall Roughness = Smooth Wall |
c | Default Fluid Solid Interface in c Side 1 | F211.174, F181.174, F215.174, F212.174, F153.174, F2... | Interface | Heat Transfer = Conservative Interface Flux |
c | Default Solid Solid Interface in c Side 1 | F194.174, F200.174, F187.174, F152.174 | Interface | Heat Transfer = Conservative Interface Flux |
c | c Default | F208.174 | Wall | Heat Transfer = Adiabatic |
si 1 | Default Fluid Solid Interface Side 2 | F179.175, F185.175, F186.175, F188.175, F183.175 | Interface | Heat Transfer = Conservative Interface Flux |
si 1 | Default Solid Solid Interface in si 1 Side 2 | F187.175 | Interface | Heat Transfer = Conservative Interface Flux |
si 1 | si 1 Default | F184.175 | Wall | Heat Transfer = Adiabatic |
si 2 | Default Fluid Solid Interface in si 2 Side 2 | F180.177, F193.177, F189.177, F192.177, F191.177 | Interface | Heat Transfer = Conservative Interface Flux |
si 2 | Default Solid Solid Interface in si 2 Side 2 | F194.177 | Interface | Heat Transfer = Conservative Interface Flux |
si 2 | si 2 Default | F190.177 | Wall | Heat Transfer = Adiabatic |
si 3 | Default Fluid Solid Interface in si 3 Side 2 | F197.178, F198.178, F195.178, F182.178, F199.178 | Interface | Heat Transfer = Conservative Interface Flux |
si 3 | Default Solid Solid Interface in si 3 Side 2 | F200.178 | Interface | Heat Transfer = Conservative Interface Flux |
si 3 | si 3 Default | F196.178 | Wall | Heat Transfer = Adiabatic |
si 4 | Default Fluid Solid Interface in si 4 Side 2 | F204.173, F206.173, F203.173, F201.173, F205.173 | Interface | Heat Transfer = Conservative Interface Flux |
si 4 | Default Solid Solid Interface in si 4 Side 2 | F152.173 | Interface | Heat Transfer = Conservative Interface Flux |
si 4 | si 4 Default | F202.173 | Wall | Heat Transfer = Adiabatic |
Figure 1. |
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Figure 2. |
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Figure 3. |
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Figure 4. |
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Figure 5. |
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Figure 6. |
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Summary
4 ladder7_001 (full length ladders .. high resolution)
Figures:
1. Stream lines showing air flow and velocity
2. Velocity contour at the mid plane
3. Temperature of all structures at the mid plane
4. Temperature of all structures on planes near the entrance, the middle and the module tube exit.
5. Surface temperature of the 4 silicon ladders
6. Stream line view showing starved region due to truncated geometry
Some results:
Maximum silicon temperature above ambient 16 deg. C
Inlet pressure to drive 8 m/s entrance flow: 59 Pa or .24 in H2O
Mass flow at inlet 0.0115 kg/s or 187 CFPM for total 10 module flow
The high resolution analysis here gives a higher silicon temperature, 16 deg over ambient as opposed to 12 for lower resolution. The outer ladder on the ? x direction is the warmest and this appears to be due to the limited geometry we used in this analysis. This is apparent in the Fig. 6 view of the streamlines. Note that the inset on the boundary tends to steer the flow away form the ladder on that side. The other ladders show an elevated temperature of closer to 12 deg C.
Features of the analysis.
Full length structure
8 m/s air at the inlet.
Heat input 100 mW/cm^2 on all 4 silicon surfaces
High resolution analysis