Numerical Model for Forecasting Ice Conditions on the Ohio River

Abstract

A numerical model, RICEOH, for simulating flow and ice conditions in a dendritic river system is developed. The flow computations use a double-sweep algorithm for unsteady shallow water wave equations. The distributions of water temperatures and ice concentration are determined using a Lagrangian-Eulerian scheme. The formation of an ice cover is modeled using existing equilibrium ice jam theories. Frazil ice deposition and erosion are modeled by a simple critical-velocity criterion. The thermal growth and decay of an ice cover is calculated by a quasi steady finite difference method. The model is applied to the Ohio River system between Pittsburgh, Pennsylvania, and Meldahl, Ohio. Comparisons with field observations show that the model can provide good simulation for ice conditions.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1991
Accession Number
ADA243336

Entities

People

  • A. M. Wasantha Lal
  • Goranka Bjedov
  • Hung T. Shen
  • Steven F. Daly

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

DTIC Thesaurus Topics

  • Computations
  • Computer Programs
  • Computers
  • Energy
  • Engineering
  • Engineers
  • Equations
  • Froude Number
  • Heat Energy
  • Heat Of Fusion
  • Heat Transfer
  • Latent Heat
  • Ohio River
  • Simulations
  • Standards
  • Thermal Conductivity
  • Water

Readers

  • Computational Modeling and Simulation
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Polar and Arctic Studies