Form Approved
REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
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OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS.
1. REPORT DATE (DD-MM-YY)
2. REPORT TYPE
3. DATES COVERED (From - To)
August 2000
Technical Report
4. TITLE AND SUBTITLE
5a. CONTRACT NUMBER
5b. GRANT NUMBER
Numerical Simulation of
River Ice Control with Booms
5c. PROGRAM ELEMENT NUMBER
6. AUTHOR(S)
5d. PROJECT NUMBER
Lianu Liu and Hung Tao Shen
5e. TASK NUMBER
5f. WORK UNIT NUMBER
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION REPORT
NUMBER
U.S. Army Engineer Research and Development Center
Cold Regions Research and Engineering Laboratory
72 Lyme Road
ERDC/CRREL TR-00-10
Hanover, New Hampshire 03755-1290
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSOR / MONITOR'S ACRONYM(S)
11. SPONSOR / MONITOR'S REPORT
NUMBER(S)
12. DISTRIBUTION / AVAILABILITY STATEMENT
Approved for public release; distribution is unlimited.
Available from NTIS, Springfield, Virginia 22161.
13. SUPPLEMENTARY NOTES
14. ABSTRACT
In this study a two-dimensional numerical model for simulating ice transport and accumulation in the vicinity of river ice booms is
developed. The model considers the dynamics of surface ice transport in the river, coupled with the hydrodynamics of the flow. The water
flow inside the moving surface ice and the ice accumulation is included in the hydrodynamics. The Lagrangian discrete-parcel method with
smoothed particle hydrodynamics is used to simulate the ice dynamics and a finite-element method is used to solve the hydrodynamic
equations. Ice entrainment at the boom or the leading edge and underside of the ice accumulation, as well as the limiting boom load for ice
retention, are considered. The model is verified with analytical solutions for idealized ice jams in a rectangular channel, and calibrated to an
ice jam that progressed up the lower Missouri River during January 1977. The model is then used to assess the feasibility of ice booms on
the lower Missouri River. The results show that conventional ice booms may not be effective for typical flow conditions in the lower
Missouri River, unless the water level at the MissouriMississippi River confluence is high and the water discharge is low.
15. SUBJECT TERMS
Ice booms
Mississippi River
River ice
Ice jams
Missouri River
Simulation modeling
16. SECURITY CLASSIFICATION OF:
17. LIMITATION OF
18. NUMBER
19a. NAME OF RESPONSIBLE PERSON
OF ABSTRACT
OF PAGES
a. REPORT
b. ABSTRACT
c. THIS PAGE
19b. TELEPHONE NUMBER (include area code)
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Standard Form 298 (Rev. 8-98)
]Prescribed by ANSI Std. 239.18
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