Method for carrying out parallelization numerical simulation on hydrodynamic force conditions of river provided with cascade hydropower station

A numerical simulation and hydropower station technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of poor program versatility and portability, low efficiency, and long time consumption
CN102722611AInactive Publication Date: 2012-10-10TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2012-10-10
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a method for carrying out parallelization numerical simulation on hydrodynamic force conditions of a river provided with a cascade hydropower station. According to the method, a closed equation set is established for each course by setting an upper level or a flow-level relation of a river channel structure as a lower boundary condition of an upper reach and supposing that a lower level of the structure is used as an upper boundary condition of a lower reach; and each equation set only comprises variables of the same reach, a coefficient matrix formed by adopting an implicit difference scheme to carry out dispersion are still kept having the banded characteristics and the physically related reaches are relatively independent on the aspect of value, so that the variables of the reaches can be solved by applying the banded matrix and the aim of ensuring the flows at both sides of the structure equal is fulfilled by iterating and correcting the lower level of the structure. Compared with the conventional method of solving the hydrodynamic conditions of the river by the single course, the method disclosed by the invention has the advantages that the rapid parallel solution of the multi-course river hydrodynamic conditions can be implemented without modifying an original sequence program of solving the river hydrodynamic conditions on a large scale; the operation process has short time consumption; and the efficiency is high.
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Description

technical field

[0001] The invention relates to a river hydrodynamic numerical calculation method, in particular to a parallel numerical simulation method for hydrodynamic conditions of rivers with cascaded hydropower stations for solving the hydrodynamic conditions of multi-level rivers. Background technique

[0002] In river water conservancy projects, cascade hydropower stations refer to a group of hydropower stations built on the same river with upstream and downstream connections. For example, the Three Gorges Hydropower Station and its downstream Gezhouba Hydropower Station constitute a cascade hydropower station. The flow regulation between the upper and lower cascades of cascade hydropower stations is closely related to improving sediment erosion and deposition and navigation control and many other issues. Solving the hydrodynamic conditions of the river is a necessary condition for the cascade hydropower station to realize macro dispatch and flow control. At presen...

Claims

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