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Verification and Validation study from the Fall 2009 CFD research determined that flocculator simulations in ANSYS Fluent are verified, but not validated. Fluent simulations of the flocculator are not validated because they do not accurately represent real fluid flow in a flocculator. The dimensionless pressure coefficient,

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{latex}\large${C_{p}} = {p - p_{0} \over {1 \over 2} \rho V^{{\raise0.7ex\hbox{$2$}}}}${latex}

, is used to relate pressure values extracted from Fluent simulations of the flocculator and measured headloss in real flocculators. The

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{latex}\large${C_{p}}${latex}

of the Fluent simulation of the flocculator is greater than

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{latex}\large${C_{p}}${latex}

measured in flocculators, thus the pressure and velocities calculated by Fluent in sections of the flocculator in simulations are incorrect compared to real systems and not validated.

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Validate the Fluent simulation of the flocculator by having the simulation

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{latex}\large${C_{p}}${latex}

match

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{latex}\large${C_{p}}${latex}

from experimental measurements, by Julia Schoen on the PIV measurement project, and from measurements of headloss in the Agalteca flocculator (which has evenly spaced baffles like Fluent flocculator models).

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Validation Studies

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