| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a numerical analysis device and an element generation program, which can read out information necessary for performing non-stationary analysis of fluid in a pipeline network from a pipeline network model constructed as a three-dimensional model. <P>SOLUTION: A numerical analysis device executes a step 102 for selecting a fluid equipment model and a piping model to be used for the non-stationary analysis out of fluid equipment models and piping models located between a set starting point and a set ending point in a pipeline network model constructed as the three-dimensional model of the pipeline network including fluid equipment and piping, a step 104 for dividing the selected fluid equipment model and piping model into a volume element and a junction element, and a step 106 for deriving the cubic capacity for every divided volume element and a pressure loss coefficient corresponding to every volume element based on the shape of the fluid equipment model, the shape of the piping model and physical quantity of fluid, making the cubic capacity correspond to the volume element and making the pressure loss coefficient correspond to the junction element. <P>COPYRIGHT: (C)2012,JPO&INPIT |
