CFD Flocculation Tank Simulation
Overview
Create a CFD simulation to predict velocity gradients and pressure losses for each baffle in the flocculation tank. Use results to optimize the design of the flocculation tank.
CFD Flocculation Tank Simulation goals and meeting minutes.
Research
Fall 2008 Research Topics
- Validate which turbulence model to use. K-e realizable or K-w SST
- Calculate G_theta and compare with the theoretical data
- Analyze how energy dissipation rate is affected by Reynolds number
- Flocculator with multiple baffles
- Automation of Mesh Creation
- Nondimensional Analysis
- Investigation of Turbulence Boundary Condition
- Uniform Energy Dissipation Rate Approach in Determining Optimal Geometry
- Performance Parameter Approach in Determining Optimal Geometry
- Characterization of Energy Dissipation Distribution
Spring 2008 Research Topics
- Model and validate a simple 180 degree turn over two baffles:*
- Create fully second order accurate model
- Perform mesh sensitivity analysis (using coarse, medium and fine meshes)
- Model the baffles using alternate Turbulence models (K-e Standard, K-e Realizable, K-w)
- Analyze the effects of changing the baffle clearance height
- Understand and analyze the relationship between Strain Rate, Energy Dissipation and Kinematic Viscosity
- Create a flexible mesh that uses parametrization to easily change geometry dimensions
- Analyze the effect of the Reynolds Number on the results
- Analyze the sensitivity of the model to convergence residuals
- Model flocculation tank and compare Simulation to Experimental results.*
Spring 2008 Documentations:
Resources
- Johannes Haarhoff and Jeremia J. van der Walt , J Water SRT - Aqua 50 (2001) 149-160 - - Towards optimal design parameters for around-the-end hydraulic flocculators.
- Relation of Shear Stresses to Floc Strength
- CFD Flocculation Tank Simulation Research
- CFD Fall 2008 Midtem Report
- CFD Spring 2008 Midterm Teach-in Presentation
- CFD Spring 2008 Final Report
- CFD Fall 2008 Midterm Teach-in Presentation
- CFD Fall 2008 Midtem Report
- CFD Fall 2008 Final Report