◆Debris flow simulator ”Kanako”
Here, You can download GUI equipped debris flow simulator “Kanako”.
Japanese version :
To prevent and reduce sediment-related disaster, Sabo dam is conducted. It is important to plan the Sabo dam design (such as type, location, dimension, etc) is the most appropriate in each specific area in order to get an effective and efficient design that have enough effect.
Then, the simulation program, that placed the numerical simulation model, was proposed as a tool to verify the effect of erosion control by Sabo dam in sediment transport process during debris flow occurred.
However, these programs did not get an enthusiastic response from the user because its performance and display had difficulty being understood, not more communicative and needed certain expertise to compile.
Therefore, it is a fact that could not apply the numerical simulation program for oneself and prefer to order the calculation works to the consultant.
Debris flow simulator “Kanako”, that mounted the user interface used easily this time, was developed based on the above-mentioned current state.
This generation of simulation program is easier to use and more communicative, the user can input or change the calculation condition according to their desire condition only by using mouse on the menu facilities or graphics displayed.
On the other hand, simulation result can also be understood intuitively by user. As a result, it becomes possible to conduct a numerical simulation to calculate flow and piling up process of debris flow even if there was no advanced expertise.
Riberbed profile can be changed．
he discharge of debris flow can be changed by dragging．
Trainsition of water depth and riverbed can be checked from screen easily．
◇Limit and assumptions of using Kanako
As written below, there are some limit and assumptions on analysis using Kanako.Please notice that there are some limit and assumptions when using Kanako.
|1.||The target is stony debris flow. And bed load is off the subject.|
|2.||In the simulation, only one Mountain River is the subject. We don’t consider the confluence of Mountain Rivers.|
|3.||We consider only 2 kinds of material size of the debris flow at 1-D model,and 1 kinds of material size of the debris flow at 2-D model.|
|4.||Considering slit type sabo dam, the model does not currently incorporate energy loss from the rapid narrowing of river width at 1-D area.|
|5.||In the calculation, a rectangular cross section is assumed.|
|6.||We don’t consider sediment sorting in the stony debris flow.|
|7.||We don’t consider the temporal and spatial change of grain size distribution in river bed.We don’t consider the temporally and spatially change of grain size distribution in river bed.|
Copyright for this software belongs to Laboratory of Erosion Control, Division of Forest Science, Graduate School of Agriculture, Kyoto University, & SABO Technical Center.
The user may not take any of following actions, without permission of the License owner (here in after called “Owner”) :
(1) Copy, modify or otherwise duplicate the whole or a part of the Software
(2) Decompile or modify using reverse engineering, disassemble, or otherwise reprogram the Software;
(3) Distribute, sell, sublease or lease the Software to third parties;
(1) The owner makes no warranty or representations that the Software will run uninterrupted or is error free.
(2) The owner shall not guarantee that the functions and performance of the Software will meet the requirements of the customer.
(3) The owner shall not be responsible for losses sustained by the customer or the recovery of damages incurred by a third party,
or any other cost incurred in using the Software.
4.Change of Specifications
The specifications or design of the software and the contents of the instruction manual may be changed without notice by the owner.
“Kanako” is freeware.You may click here to get “Kanako” .
■Installation and Startup
The operating environment for software installation is as follows:
– CPU: Intel Pentium or equivalent
– Memory: 128 MB or more
– Operating System: Microsoft Windows7/8/10
– Hard Disk: Needs free space of at least 600 MB
– Necessary software: Microsoft .NET Framework 3.5(includes .NET 2.0 and 3.0)
Note: In some languages setting situation, software doesn’t move property. In that case, please change the PC language setting as “English”.
◇Limitation of input data number and output data number
Maximum of calculation points is 500. Though, due to the monitor screen size, downstream from No.100 points sometimes can’t be seen on the screen. But even in those cases,calculation is done properly and you can see and check the result from the output data.
Due to limitations of array elements, the upper limit of the number of the output hydrograph data is 1000. The number can be calculated from dividing” Simulation continuance time” by “Time interval of output hydrograph data” plus 1, because 0s is also output.
Due to limitations of array elements, the upper limit of the number of the output data, all points’ flow depth, riverbed variation, velocity and concentration, is 1000. The number can be calculated from dividing” Simulation continuance time” by “Time interval of output result data” plus 1, because 0s is also output.
For the variable type specification in Kanako, “Time interval of output hydrograph data (s)” and “Time interval of output result data (s)” should be set as integer value.
For 1-D area, maximum of calculation points is 500. Though, due to the monitor screen size, downstream to No.100 point sometimes can’t be seen on the screen.
But even in those cases, calculation is done properly and you can see and check the result from the output data.
For 2-D area, recommended maximum of calculation points is 300 x 300 (flow direction x cross direction). Though setting within 300 x 300, error may occur due to the PC spec. The initial setting is 60 x 60. The number of the flow axis and cross direction can be different (e.g. such as 60 x 100) but the grid is limited to the square lattice.
Due to limitations of array elements, the number of simulation result outputs “nijidat” has Max value. “nijidat” is set by the number of flow direction points, and the number of cross direction points, and the number calculated from dividing” Simulation continuance time” by “Time interval of output result data”.
We checked in 3 PC that program work on the simulation cases as following [flow direction x cross direction, (Simulation continuance time(s) / Time interval of output result data(s) )] ; [200×200, 3600s/10s] & [300×300, 3000s/20s] & [300×300, 1800s/10s]
Windows10 Professional(64bit), Intel® Core™ i7-9700 processor (3.00GHz), 64GB RAM
Windows10 Professional(64bit), Intel® Core™ i7-10750 processor (2.59GHz), 32GB RAM
Windows10 Professional(64bit), Intel® Core™ i7-10810 processor (1.1GHz),16GB RAM
Due to limitations of array elements, the upper limit of the number of the output hydrograph data in 1D area is 1000. The number can be calculated from dividing” Simulation continuance time” by “Time interval of output hydrograph data” plus 1, because 0s is also output.
For the variable type specification in Kanako2D, “Time interval of output hydrograph data (s)” and “Time interval of output result data (s)” should be set as integer value.
Laboratory of Erosion Control, Division of Forest & Biomass Science Graduate School of Agriculture, Kyoto University
Mailing Address:sakyou-ku, Kyoto 606-8502, Japan
Sabo Technology Research Institute,SABO TECHNICAL CENTER, Japan
Mailing Address:4-8-21, Hirakawacho, Chiyoda-ku, Tokyo 102-0093, Japan