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Mesh | Number of Mesh Elements | Wall Boundary Layer Conditions | Second Edge | Third Edge | Fourth Edge |
|---|---|---|---|---|---|
Coarse | 18762 | First row = 0.003 | Interval size = 0.007 | Interval size = 0.003 | Interval size = 0.003 |
Medium | 30000 | First row = 0.003 | Interval size = 0.005 | Interval size = 0.002 | Interval size = 0.002 |
Fine | 52260 | First row = 0.003 | Interval size = 0.0038 | Interval size = 0.0014 | Interval size = 0.0014 |
2.6 Effect of Reynolds Number
The effects of Reynolds number was examined. AguaClara water treatment plant is built in geographically diverse area where the flow rate into the flocculator is different. Hence, it is important to understand the effect of Reynolds number on the results.
2.7 Parameterization
At the later stage of project, after the good solution was obtainedthe confident on result of the model was built up, the effect of geometry on results was analyzed. Different clearance height was used for analyzing new results as a result of this effect. It would be tedious to individually recreate each geometry and mesh for different clearance height from scratch. For this reason, parameterization technique was used. The original Gambit journal file was modified to include the variable clearance height. Using this method, changes in corresponding clearance height was plug into the journal file and run using Gambit to obtain desired mesh and geometry. The journal files used for such parameterization is included in the Appendix.
2.
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8 Comparing Turbulence Model
Different turbulence model were also usedemployed for comparing the effect of different turbulence model. Standard
3. Results and Discussions
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