Turbulence Model for Flow over Dredged Channels

by C. Koutitas, (M.ASCE), Lect.; Hydraulics Dept., School of Tech., Thessaloniki Univ., Thessaloniki, Greece,
Brian O'Connor, Sr. Lect.; Simon Engrg. Labs., Manchester Univ., Manchester, England,

Serial Information: Journal of the Hydraulics Division, 1981, Vol. 107, Issue 8, Pg. 989-1002

Document Type: Journal Paper


The mathematical model of nearly horizontal flows is applied for the study of the nonuniform flow over a steep-sided, dredged, port approach channel. A mixed finite-difference/finite-element method is used for the solution. The eddy viscosity parameter is computed by means of both the mixing length and turbulence kinetic energy turbulence closures. The comparison of the computed flow magnitudes (velocity, eddy viscosity, shear stresses, and turbulence kinetic energy) to the laboratory measured ones demonstrate the predictive character of the model.

Subject Headings: Nonuniform flow | Turbulence | Flow measurement | Channel flow | Hydraulic models | Dredging | Eddy (fluid dynamics) | Viscosity

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