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Last modified
1/25/2010 6:25:20 PM
Creation date
10/4/2006 11:06:34 PM
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Floodplain Documents
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Title
HEC-5 Simulation of Flood Control and Conservation Systems
Date
6/1/1979
Prepared For
US
Prepared By
COE
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />e. The system of existing and proposed reservoirs or other alternatives <br />including nonstructural alternatives that results in the maximum net ' <br />flood control benefits for the system by making simulation runs for selected <br />alternative systems. <br /> <br />3. HARDWARE AND SOFTWARE REQUIREMENTS <br /> <br />The programl, written in FORTRAN IV, was developed on a CDC 7600 computer <br />wi~h 65K words of central memory and 500K words of extended memory. The <br />library version using 74K words of storage, can simulate the operation of <br />10 reservoirs, 15 control points. 11 diversions, and 5 power plants. <br />using any number of time periods in each flood or nonf100d event. The <br />program may be used on a smaller computer system withs scratch units if <br />.arrays are appropri ate1y dimensioned. Dimension limits for the CDC 7600 <br />computer allow the simulation of 35 reservoirs, 55 control points, <br />20 diversions. and 9 power plants for any number of time periods for each <br />runoff event. A current version of the program is maintained for Corps <br />use on the BCS and LBL computer systems. <br /> <br />DESCRIPTION <br /> <br />4. GENERAL CAPABILITIES AND LIMITATIONS OF PROGRAM <br /> <br />a. Configuration of system <br /> <br />(1) Any reservoir system configuration may be used as long as <br />dimension limits are not exceeded for number of reservoirs, number of <br />control pOints. number of diversions, etc. (See paragraph 3 above.) <br /> <br />(2) The most upstream control point on each tributary must be <br />a reservoir. <br /> <br />(3) Reservoirs which have flood control storage may be operated <br />to minimize flooding at any number of downstream control points. <br /> <br />(4) Reservoirs without flood storage will be operated for their <br />own requirements (power or low flOW) and can be operated to provide low <br />flow requirements for any number of downstrea~ control points. <br /> <br />(5) Reservoirs may be deleted by specifying the applicable iden- <br />tification number on the J5 card (becomes a reservoir with no storage) <br />or by removing the appropriate cards RL-PH(becomes only a control point). <br /> <br />1The program is actually two separate programs that are linked by temporary <br />scratch files. The first program reads input and simulates reservoir <br />operation. The second program reads the scratch files and does the output <br />displays and economic analysis. <br /> <br />2 <br />
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