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Reactor simulation method, database processing method and reactor simulation system

A database and reactor technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the time-consuming problems of small group constant database processing, improve efficiency, reduce the number of read operations, and improve execution efficiency Effect

Active Publication Date: 2014-03-05
STATE POWER INVESTMENT CORP RES INST
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  • Application Information

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Problems solved by technology

Due to 1) the number of divisions is large, 2) the minority group constants of all nodes may be updated multiple times in one calculation, and 3) multiple reference factors must be considered for assigning the minority group constant value to each node, so the minority group Constant database processing is usually time consuming

Method used

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  • Reactor simulation method, database processing method and reactor simulation system
  • Reactor simulation method, database processing method and reactor simulation system
  • Reactor simulation method, database processing method and reactor simulation system

Examples

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no. 1 example

[0063] image 3 It is a flowchart of a method for obtaining minority group constant data according to an embodiment of the present application. see image 3, which is the flow chart of the first embodiment of the data access method for the minority group constants of the present application:

[0064] In step 301, the basic information of the minority group constant database is obtained, and a cache data module is opened.

[0065] In addition to the basic data unit of the minority group constants, the minority group constant database also includes branch description information describing the selection of database branch categories and division of branch points, and data unit location information for locating the basic data unit and the data in the unit. In this embodiment, the branch description information and the basic data unit positioning information are first read, and memory space is opened for the read information. This step should be set in the preprocessing stage o...

no. 2 example

[0072] Figure 4 It is a flowchart of a method for obtaining minority group constant data according to another embodiment of the present application. see Figure 4 , which is the flow chart of the second embodiment of the data access method for minority group constants of the present application:

[0073] In step 401, the branch description information and basic data unit location information in the minority group constant database are read.

[0074] In addition to the basic data unit of the minority group constants, the minority group constant database also includes branch description information describing the selection of database branch categories and division of branch points, and data unit location information for locating the basic data unit and the data in the unit.

[0075] In this embodiment, the branch description information and the basic data unit positioning information are first read, and memory space is opened for the read information. This step should be se...

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Abstract

The invention discloses a reactor simulation method, a database processing method and a reactor simulation system. The reactor simulation method includes: dividing assembly group constant program computation branches to generate branch description information; according to the branch description information, computing assembly few-group constants for the branches one by one to obtain all basic data units of a few-group constant database; according to the branch description information, generating positioning information of each data unit in the few-group constant database; using the branch description information, the basic data units and the positioning information of each data unit to establish the few-group constant database; according to fuel loading assembly type, burnup level and operating conditions, reading data from the few-group constant database, processing to obtain matched few-group constants, and executing full-reactor-core simulation. By the scheme, efficiency of processing the few-group constant database by reactor core programs is improved and universal applicability to numerical simulation and computation of various nuclear fuel assemblies is guaranteed.

Description

technical field [0001] The present application relates to the field of reactor physical numerical simulation, in particular to a reactor simulation method, a minority group constant database processing method and a system. Background technique [0002] The component-core two-step method is a technical route of reactor physical numerical simulation. The component-core two-step method compresses the energy group of the nuclear reaction database under the premise of ensuring that the model error is acceptable, and only calculates relatively few geometric elements in each step. However, due to the large number of neutron energy groups and geometric unit divisions in the technical route of numerical simulation of the whole stack by fuel rod, its efficiency cannot meet the actual needs under the current engineering computing hardware conditions. Therefore, the current international mainstream commercial reactor physical numerical simulation program packages all adopt the componen...

Claims

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Application Information

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IPC IPC(8): G06F19/00G06F17/30
Inventor 王苏陈义学余慧李硕刘志彦孙业帅
Owner STATE POWER INVESTMENT CORP RES INST
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