Three-Dimensional Numerical Simulation of Plume Downwash with a k–ϵ Turbulence Model
Abstract
Plume downwash at a large oil-gathering facility in the Prudhoe Bay, Alaska oil-field reservation was simulated in a series of numerical experiments. The model is a three-dimensional, Cartesian coordinate, finite difference code that solves the nonhydrostatic, time-averaged equations for the conservation of momentum and energy. The code uses a modified form of the standard first-order, two-equation (k-ε) engineering turbulence closure model. We have used the numerical model to simulate directly the mean features of the flow field and dispersion from a buoyant source at an industrial site. The flow features varied depending on the size, number, and orientation of the buildings. The results generally reproduce the plume downwash and dispersion observed in wind tunnel and field investigations. -from Authors
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