Prediction of Hydrodynamics for Unidirectional Flow
Abstract
Over the next two years our aim is to transition from the study of nearshore currents to the study of river current. Our approach is to apply methods used in nearshore circulation (in particular longshore current predictions) to the prediction of flow in riverine environments. Specific objectives are: 1. Complete work on publications related to circulation in the nearshore zone currently under preparation. 2. Carry out a focused study for the application of variational data assimilation (DA) methods to steady state river problems using simple dynamical models for the flow field. The work will be geared towards obtaining estimates of upstream conditions, frictional parameters and channel topography given observations of stream velocities at several locations. This work will be carried out in two phases Assess the utility of a shelf/surf zone circulation model (e.g. ROMS) in determining the 2D flow field in a river setting. Implement variational DA into a simple 1D river flow model (assuming a straight channel and no cross-stream flow). Use a simple 2DH formulation for flow in a meandering stream and apply variational DA methodology in this more realistic 2D setting.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2007
- Accession Number
- ADA519668
Entities
People
- H. T. Ozkan-haller
Organizations
- Oregon State University