1. General Model Information


Acronym: DYNHYD5

Main medium: aquatic
Main subject: hydrology
Organization level: Landscape, Ecosystem
Type of model: partial differential equations (1D)
Main application: research, decision support/expert system, simulation/optimisation tool
Keywords: flow, hydrodynamics, estuary, river, watershed


Model Distribution Coordinator
Center for Exposure Assessment Modeling,
Environmental Protection Agency,
Athens, Georgia, 706-355-8400,

email: ceam@epamail.epa.gov


Robert B. Ambrose, Tim A. Wool, James L. Martin


The WASP5 hydrodynamics model DYNHYD5 is an update of DYNHYD4 (Ambrose et.al 1988), which was an enhancement of the Potomac Estuary hydrodynamic model DYNHYD2 (Roesch et al. 1979) derived from the original Dynamic Estuary Model (Feigner and Harris, 1970). DYNHYD5 solves the 1-dimensional equations of continuity and momentum for a branching or channel-junction (link-node), computational network. Driven by variable upstream flows and downstream heads, simulations typically proceed at 1 to 5-minutes intervals. The resulting unsteady hydrodynamics are averaged over large time intervals and stored for later use by the water quality program.

(Source of this abstract: Hydrodynamics Program, DYNHYD5, Model Documentation and User Manual

II. Technical Information

II.1 Executables:

Operating System(s): WINDOWS/UNIX
at SMIC's DYNHYD5 pageWINDOWS executable

II.2 Source-code:

Programming Language(s): Fortran
Download Source

II.3 Manuals:

Hydrodynamics Program, DYNHYD5, Model Documentation and User Manual (1993) or
at SMIC's DYNHYD5 page

II.4 Data:

an example:
A-1 APPENDIX A Input File of the Calibrated DYNHYD5 Hydrodynamic ...[PDF]

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

V. Further information in the World-Wide-Web

VI. Additional remarks

Last review of this document by: : Thu May 13 18:52:54 2004
Status of the document: Contributed by Joachim Benz
last modified by Joachim Benz Thu May 13 22:15:22 CEST 2004

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