Modeling Vessel-Generated Currents and Bed Shear Stresses

Abstract

Adaptive Hydraulics (ADH) is a computational fluid dynamics package that solves the Navier-Stokes equations and shallow-water (depth-averaged Navier-Stokes) equations on two- and three-dimensional computational meshes for overland flow, sediment transport, and groundwater problems. The capability to model the hydrodynamic effects of vessels moving through a two-dimensional flow field has been added to ADH. Using empirical relations developed by Maynord (2000), the bed shear stresses induced by a barge bow and towboat propeller may also be calculated, which, in turn, can be used to predict sediment transport. Guidelines have been developed for sufficient mesh refinement near the vessel and appropriate values for the mesh adaption parameters in ADH. To demonstrate the new modeling capability, this report describes in detail a study of the effects of a vessel sailing through a stretch of the Illinois Waterway near Kampsville, IL. The vessel-induced shear stresses are also reported for the Kampsville study.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2008
Accession Number
ADA482922

Entities

People

  • David S. Smith
  • E. A. Hammack
  • Richard L. Stockstill

Tags

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Engineering
  • Engineers
  • Equations
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Hydraulics
  • Hydrodynamics
  • Mechanical Properties
  • Navigation
  • Near Field
  • Sedimentation
  • Shallow Water
  • Shear Stresses
  • Three Dimensional
  • Two Dimensional

Readers

  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Computational Fluid Dynamics (CFD)