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NON-STEADY ANALYSIS DEVICE AND METHOD FOR INCOMPRESSIBLE FLUID, COMPUTER PROGRAM, AND RECORDING MEDIUM FOR COMPUTER PROGRAM

机译：不可压缩流体，计算机程序以及用于计算机程序的记录介质的非稳态分析装置和方法

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摘要

PPROBLEM TO BE SOLVED: To provide non-steady analysis device and method for dramatically cut time for conversing a solution of a simultaneous equation in which a non-steady behavior of incompressible fluid is described, and to provide a computer program, and recording medium for recording the computer program. PSOLUTION: Initial values of a flow velocity vector and pressure at analyzing points are received, and approximate solution of flow velocity vector at the analyzing points is calculated. When the maximum absolute value of divergence of the approximate solution is larger than a predetermined value, a new pressure correction quantity is calculated by combining, in a line shape, a stored pressure correction quantity and a pressure correction quantity that is calculated from a value acquired by dividing the divergence of the approximate solution by a unit calculation time, and approximate solution of pressure and approximate solution of flow velocity vector are calculated from the new pressure correction quantity, and then it is determined again whether or not the maximum absolute value of the divergence of the calculated approximate solution of flow velocity vector is larger than the predetermined value. When the maximum absolute value of the divergence of the approximate solution of flow velocity vector is smaller than the predetermined value, the approximate solution of flow velocity vector and approximate solution of pressure are output. PCOPYRIGHT: (C)2005,JPO&NCIPI

机译：

要解决的问题：提供一种非稳态分析装置和方法，用于大幅度减少时间，以便转换描述了不可压缩流体的非稳态行为的联立方程的解，并提供一种计算机程序，以及用于记录计算机程序的记录介质。

解决方案：接收分析点处流速矢量和压力的初始值，并计算分析点处流速矢量的近似解。当近似解的散度的最大绝对值大于预定值时，通过将存储的压力校正量和根据获取的值计算出的压力校正量以线形组合来计算新的压力校正量。通过将近似解的偏差除以单位计算时间，并从新的压力校正量计算出压力的近似解和流速矢量的近似解，然后再次确定该最大解的绝对值是否为零。所计算出的流速矢量的近似解的偏差大于预定值。当流速矢量的近似解的偏差的最大绝对值小于预定值时，输出流速矢量的近似解和压力的近似解。

版权：（C）2005，JPO＆NCIPI 展开▼

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公开/公告号JP2005240889A

专利类型
公开/公告日2005-09-08

原文格式PDF
申请/专利权人 SUMITOMO METAL IND LTD;
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申请/专利号JP20040050346
发明设计人 TAKATANI KOJI;
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申请日2004-02-25
分类号F15D1/00;
国家 JP
入库时间 2022-08-21 22:31:24

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