INUNDATION SIMULATOR AND PROGRAM

Abstract

The present invention displays a map, let a user to input a starting point and an ending point in a bank breakage section on the map, and shows a broken place on the map with a line connecting the starting point and the ending point. Further, the present invention calculates the direction of the flow quantity in bank breakage by calculating the normal line to the side of the inside area of the bank at the input broken place and make the it discrete in the calculation grids of the inundation simulation.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING

FIGS. 1A to 1E are general views showing examples of a calculating process of the inundation simulation;

FIGS. 2A to 2E is general views showing examples of a calculating process of an inundation simulation applied with the Dynamic DDM;

FIG. 3 is an outlined block diagram showing an example of a configuration of a computer system for implementing the present invention in the first embodiment;

FIG. 4 is a diagram showing an example of the main GUI (Shapeal User Interface) of the inundation simulation program 331;

FIG. 5 is a diagram showing a PAD (Problem Analysis Diagram) relating to an example of a process of setting bank breakage conditions;

FIGS. 6A to 6E are diagrams showing examples of the GUI with which a user performs a bank breakage section creating operation;

FIG. 7 is a diagram showing an example of the GUI for a user to change an flow quantity by bank breakage;

FIG. 8 is a diagram showing an example of a structure on a memory of the bank breakage conditions data 333 of the embodiment 1;

FIG. 9 is a diagram showing an example of a calculation grid arrangement of the embodiment;

FIG. 10 is a PAD diagram showing details of an example at the step 510;

FIG. 11 is a diagram showing a method for breaking up bank breakage section in a calculation grid arrangement;

FIG. 12 is a diagram showing an example of the GUI that is several seconds after the simulation processing started;

FIG. 13 is a general block diagram showing an example of a configuration of a computer system for implementing the present invention in the second embodiment;

FIG. 14 is a diagram showing an example of the main GUI of the inundation simulation program 331;

FIG. 15 is a PAD diagram relating to an example of the setting processing of the bank conditions;

FIGS. 16A to 16B are diagrams showing an example of the GUI where a user performs a bank breakage section creating operation;

FIG. 17 is a diagram showing an example of a structure on the memory of the bank breakage conditions data 333 of the embodiment; and

FIG. 18 is a diagram showing an example of the GUI that is several seconds after the simulation processing started.

Claims

1. An inundation simulation program for displaying a map on a display part;receiving specification of an inflow section from a user on the map;deciding a line indicating the inflow section from the input specification;calculating a direction of an flow quantity vector from a direction of the line and displays the direction with the inflow section on the map; andperforming inundation simulation using the flow quantity vector.

2. The inundation simulation program according to claim 1, wherein the specification of the inflow section is an input of control points of two or more; andthe line is decided by interpolating the control points with a line or a curve.

3. The inundation simulation program according to claim 2, wherein the direction of the flow quantity vector is parallel with a normal line of the line toward a predetermined direction of either left or right seeing in the direction from the input control point to a next input control point.

4. The inundation simulation program according to claim 1, wherein the map manages a river shape with place information on the map;the specification of the control points is input by a line or shape; andthe program decides the line by calculating points of intersection of the line or a shape and the river shape, and connecting the points of intersection.

5. The inundation simulation program according to claim 1, wherein the program receives an input of the flow quantity in time line at the inflow section.

6. The inundation simulation program according to claim 1, wherein the program receives water depth at the inflow section as a length of the line, andcalculates the flow quantity at the inflow section from the magnitude of the length.

7. The inundation simulation program according to claim 5, wherein the program performs the inundation simulation by obtaining the length of the line placed on the grid/grids for each grid/grids, which is a unit for performing the simulation;calculating the magnitude of the flow quantity vector for each of the grids from the input flow quantity based on the length; andperforming the simulation using the flow quantity vector for each of the grids.

8. The inundation simulation program according to claim 5, wherein the program performs the inundation simulation by obtaining the direction of the normal line for a part of the line placed on the grid/grids for each of the grids, which is a unit for performing the simulation; andperforming the simulation using the direction of the normal line for each of the grids.

9. The inundation simulation program according to claim 1, wherein the map is used to manage a bank shape as a local place,receives an input of the both ends of an inflow section as a specification of the inflow section from the user, and decides the bank shape in the inflow section as a line indicating the inflow section.

10. An inundation simulation device comprising: a display device for displaying a map;an input device receiving a specification of the inflow section from a user on the map; anda processing part for deciding a line indicating the inflow section from the input specification and calculating a direction of the flow quantity vector from the direction of the line;wherein the display device displays the direction of the flow quantity vector with the inflow section on the map; andthe processing part performs the inundation simulation using the flow quantity vector.

11. The inundation simulation device according to claim 10, wherein the processing part makes the direction of the normal line of the line toward either left or right to the predetermined line seen in the direction from the input control point to the next input control point the direction of the flow quantity vector.