Page History

Spring 2009 Mid-Semester Contributions

During the first half of the Spring 2009 semester, I completed/started the following simulation experiments:

• Resolved the discrepancy between 2D model and 3D model with periodic boundary conditions
• Completed preliminary simulations using Reynolds stress model in 2D settings
• Created a finer 3D mesh and started simulation with k-epsilon realizable turbulence model
• Set up an account on Swanson SGI server for parallel computing and figured out the LINUX configuration(still need to figure out the appropriate command for parallel computing)

Fall 2008 Contributions

During the second half of Fall 2008 semester I changed the project from modeling sedimentation tank to 3D simulation of the flcculation tank. A series of preliminary simulation were carried out in order to have an idea of the scope of the problem and how to approach it. The preliminary simulations could be catergorized into two topics: investigation of convergence in 3D systems, and comparing 3D results with 2D results to understand the disctinction of the key underlying assumptions behind these models and the validity in terms of closenes to the real flow.

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By reasonably reducing the 3D flow field to 2D and further decomposing the 2D cross-section, I now have a starting point to create the first geometry and the first mesh.

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