Computational Challenges in River Morphodynamics by iRIC

Yasuyuki Shimizu, Hokkaido University, Yasuyuki Shimizu 清水 康行

Professor, Laboratory of Hydraulic and Research (Civil Engineering) Graduate School of Engineering Hokkaido University 北海道大学（札幌）

Field of Interst: Water Related Disaster Prevention Research Hydraulic Engineering Water Resources Engineering Computational Fluid Dynamics, and Computational Models

2 Hokkaido

Area: 83,000km2

SAPPORO Population: 5,700,000

Sapporo Population: 1,900,000

3 Where Hokkaido University is

Main campus located in Sapporo, Hokkaido Hokkaido University Sapporo campus Another campus in Hakodate (Grad. School of Fisheries Sciences)

Several off-campus facilities mostly in Hokkaido

Established in 1876 11,000 Under Graduate Students 6,000 Graduate Students 2,000 Teaching Staff 1,800 Non-Teaching Staff 12 Faculties + 10 Institutes 5 6 7 K.Asahi, Y. Yoshida, H.Tsunematsu, Y. Shimizu and J. Nelson(2012), Development of the iRIC Software for River analysis 8 K.Asahi, Y. Yoshida, H.Tsunematsu, Y. Shimizu and J. Nelson(2012), Development of the iRIC Software for River analysis 9 K.Asahi, Y. Yoshida, H.Tsunematsu, Y. Shimizu and J. Nelson(2012), Development of the iRIC Software for River analysis 10

Typhoon passes between 1951 and 2018 of September

国立情報学研究所・デジタル台風サイトより12 August 2016 in Hokkaido

Abashiri 網走 留萌Rumoi 旭川Asahi Kitami kawa 北見

Typhoon台風7号 #7 178/17th AUG上陸 Otaru小樽 札幌Sapporo 釧路 帯広Obihiro Kushiro

Typhoon台風11号 #11 8/21th 上陸 室蘭Muroran 21 AUG Typhoon #10 Typhoon台風9 号#9 31th AUG台風10号 23th8/23AUG上陸

Hakodate函館 Precipitation between 1:00 15th AUG and 24:00 24th AUG

First three Typhoons Precipitation between 1:00 29th AUG and 9:00 31th AUG

Kushinai 29th-31th AUG 515mm Sorachi River, AUG 2016 Hokkaido, Japan

動画：北海道開発局 Akatani River in Kyushu, 2017

International River Interface Corporative Kinu River Flood, September 2015 iRIC

9月9日 16:00 9月9日 20:00

9月10日 0:00 9月10日 3:00

Strong19 rain band stayed along the River for 2 days International River Interface Corporative iRIC International River Interface Corporative iRIC 家屋被災

2003 Appetsu River, Hidaka, Hokkaido, Japan 22 23 24 , JUN 1995

25 26 Pekerebetsu River, 2016 Hokkaido

写真提供：(株）パスコ 27 International River Interface Corporative Introduction to iRIC Project iRIC

International River Interface Cooperative

Copyright iRIC Project. 28 What is iRIC? International River Interface Cooperative iRIC is a public-domain modeling interface and an associated group of open-source models that can be used to simulate flow, sediment transport, channel and bank evolution and habitat in riverine environments across a wide range of temporal and spatial scales Using iRIC does not mean you need to use the models we present! Interface developed by USGS for Interface developed by Hokkaido FASTMECH and STORM Uni. and HRDPRC for NAYS MD_SWMS RIC-NAYS

iRIC 1.0 (Old Version, 2009) FASTMECH, NAYS2D, MORPHO2D, STORM

iRIC 2.0 (Released on 25 May, 2012) NaysCube(3D), NaysFlood, Delft3D, River2D….. Confluences, Inundation, Multi Inflow, Bank erosion, Mixture Grain Size, Ground Water, Habitat, Multi Language ・・・・・

iRIC 2.3 (Released on 23 Jun, 2014) + Nays2DH, Mflow_02, CERI1D, NaysEddy, ELIMO, SRM・・・・・ 30 International River Interface Corporative International River iRIC Interface Cooperative

iRIC Project iRIC Japan

・Universities ・USGS(USA), Illinoi Univ. ・Research Institutes ・Dltaras(Netherlands） ・Foundations ・Alverta Univ.(Canada) ・Consulting ・Torento Univ.(Italy) Companies ・EDF(France, UK) ・IT Companies ・SNU(Korea) ・Tsinghua University (China) Outline of iRIC Import Data Data Exporting

Pre Processing User’s Post Processing GUI Tools Solvers GUI Tools

Vector, Contour, Shading, Editing Geographic Data RIC iRIC Stream Line, Particle Grid Generation and Eidt Libraries Libraries Line Graph…..

2D, 3D Fortran、C …. Structured, Unstructured 1D, 2D, 3D, Structured, Flow, Bed and Bank EvolutionUnstructured Public Domain Solvers Solvers Line-Up for iRIC • FASTMECH (2D Steady) • STORM (2D Unstructured) Nays2DH • Nays2D (2D Unsteady) • Morpho2D (2D Unsteady) • NaysCube(3D) iRIC Version 1.0 • Nays2DFlood(Inundation) • Delft3D(Delft Flow), River2D Nay = “River” in Hokkaido’s • CERI1D(Flow with Ice), Nays1D Original Language • EvaTrip(Environmental Planning) • ERIMO(Tsunami) • Morpho2D(Debris Flow) • Mflow_2(2D FEM) Version 2.3 Version 3.0 (APL 2018) • SRM(Ruoff Model) (JUN 2014) • NaysEddy(3D LES) Coming Soon! • RRI(Rain-Runff-Inundation) • NaysHybrid(1D and 2D Coupling), TELEMAC, Nays2dV Copyright iRIC Project. 33 International River Interface Corporative http://i-ric.org/en/ iRIC

34 iRIC version2.0 www.i-ric.org International River Interface Corporative iRIC Seminars iRIC Nepal, MAR 2012 Pittsburgh, USA, APR 2012

Seoul, Korea , JAN 2013 35 International River Interface Corporative iRIC Class in Kairo Egypt, JAN 2011 iRIC iRIC version2.0 www.i-ric.org International River Interface Corporative Jakarta 16-20 SEP 2013, Organized by JICA iRIC

37 iRIC version2.0 www.i-ric.org International River Interface Corporative iRIC 2014.7.3 Nagoya University

2014.7.26 IIT New Delhi India iRIC version2.0 www.i-ric.org International River Interface Corporative 1-3, April 2015 in Bangkok iRIC

39 iRIC version2.0 www.i-ric.org International River Interface Corporative iRIC

30-31 AUG, 2016 Colombo Sri Lanka iRIC version2.0 www.i-ric.org International River Interface Corporative 2015.11.24-26 Nagoya iRIC

41 iRIC version2.0 www.i-ric.org International Katmandu, Nepal, 1 MAR, 2016 River Interface Corporative iRIC

42 iRIC version2.0 www.i-ric.org International River Interface Corporative iRIC

16-19 April 2016, Tucson Arizona USA

43 iRIC version2.0 www.i-ric.org International Beijing, China, NOV 19-23 2014 River Interface Corporative iRIC

12-14 November 2014 at Kyushuu Univ. 44 iRIC version2.0 www.i-ric.org International River Interface Corporative IAHR-APD 2014, Hanoi Vietnam iRIC

45 iRIC version2.0 www.i-ric.org International River Interface Corporative iRIC Seminar in Colombia, 17-20 OCT, 2017, Bogota iRIC iRIC version2.0 www.i-ric.org International River Interface Corporative iRIC

Jog Jakarta 30-31, August 2018 47 iRIC user registration numbers

10000 9000 8000

) English Site

人 7000 ( 6000 5000 4000 3000 登録ユーザー数 2000 Jaanese Site 1000 0 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 1 4 7 1 4 7 1 4 7 1 4 7 1 4 7 1 4 7 1 4 7 1 4 7 10 10 10 10 10 10 10 10 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 年 2011 2011 2011 2012 2012 2012 2013 2013 2013 2014 2014 2014 2015 2015 2015 2016 2016 2016 2017 2017 2017 2018 2018 2018 2011 2012 2013 2014 2015 2016 2017 2018 ➢ More than 50 times iRIC classes in the world in the past 10 years ➢ 45,000 downloads in the past 3 years, and more than 20,000 users in the world 48 Copyright iRIC Project. 1 International River Interface Cooperative What is iRIC? International River Interface Cooperative iRIC is a public-domain modeling interface and an associated group of open-source models that can be used to simulate flow, sediment transport, channel and bank evolution and habitat in riverine environments across a wide range of temporal and spatial scales Examples Toyohira river, Sapporo, Japan Flow and bed deformation in Kinoshita meandering channel

You can create your own virtual flume, and perform numerical experiments. Flow and bed deformation in Kinoshita meandering channel with spur dikes

You can put your computational results at any place on the earth 6 Bank Erosion and Meandering of Otofuke River, Hokkaido, Japan (2016)

2011.9.6 The Otofuke River, Hokkaido, Japan 7 Flow, bed and bank evolution by Nays2D Flood Simulation of Metropolitan Bangkok Area in 2011 2-dimensional Flow over Dune

Fresh Water Salty Water

2-dimensional Density Current 3D Turbulent Flow over Dunes NaysEddy : 3-D flow with Large Eddy Simulation model

coherent structures

vortices

Copyright (C) 2015 iRIC Project . All Rights Reserved by M. Nabi (2014)

Levee breach simulation by Nays2DH in iRIC Bomber Cell

Artificial flood by bank explosion in Mississippi River, USA 14 (by T. Tanaka) Boom

Inundation simulation by Nays2DH in Mississippi Flood Way by Tanaka and Shimizu Nepal

Koshi Barrage Built in 1968 L=1,1150m 52 Gates India 16 Histrical Floods in Koshi River

Chakraborty et al. 2010 17 The channel avulsion in 2008

Sediment Flooding

18 2008 Water Depth Sediment Erosion/Deposition

19 International 2015 Myanmar Floods River Interface Corporative • Comparison of inundated area with calculation results iRIC

Background image: Myanmar: Flood Inundated Area in Kale Townships, Sagaing Region (as of 29 Jul. 2015 12:11) http://reliefweb.int/map/myanmar/myanmar-flood-inundated-area-kale-townships-sagaing-region-29th-july-2015-1211-am-local (Abe, 2016)

Drift Wood Simulation by I. Kimura(2018) Decreasing Discharge

Drift Wood Deposition on Alternate Bars International Moving boundary River Interface Corporative Fish and Flow iRIC

Fish ascending through fishway Río Ucayali, Peru ~32 years (1982-2015) Landsat Image

Alexander B. Bryk (2015) Meander migration of Ichilo River and Sajta River, Bolivia

Ivirgarzama Ichilo River River

Puerto Villarroel Ichilo 2000 River m

Sajta River

Source: Google Earth Engine (30 years variation) Width: 250-300 m Free Meandering River 2011 East Japan Great Earthquake and Tunama, Rikuzen Takada City BeforeAfter

Pine Tree Foresets

2,000 people, 10% of the total population is killed or missing in this city. 28 資料：東北開発建設 部 International River Interface Corporative iRIC

29 Simulation of flooding caused by Tsunami runup by S. Kawamura Water Depth 0.0 7.0(m)

30 Tsunami Simulation by ERIMO By Y. Watanabe (2018) Kinu River Flood of 2015

By Y. Ishida(2015) Akatani River in Kyushu, 2017

By Y. Ishida(2017) Levee Breach and Inundation in Sorachi River, 2016

By Y. Ishida(2016) Land Slide and Debris Flow in Hiroshima

2018 撮影： 株式会社パスコ/ 国際航業株式会社 2018年7月10日(火)

Simulated Maxiumum Deposition

By H. Takebayashi (2018) Atsuma Town, Hokkaido

Velocity：13.5m/s（49km/hr） Deposition of debris：6m

Land slide assumed to became debris flow

by Takebayashi(2018) Dam break in Laos, 2018

By Sanit Wongsa Flooding simulation and visualization using Street View by T. Tanaka and T. Inoue(2018) 38 Flooding simulation and visualization using Street View by T. Tanaka and T. Inoue(2018) 3D-Hazard Map Application for Smart Phone Where are you?

How deep will the inundation be at your place?

Good for educational purpose as well.

by T. Inoue(2018) 41 Combination of CFD and UAV Survey

UAV Survey CFD by iRIC 3D View Geometry

Toyohira River Ice Circle Winter, 2017 Multibeam Bathymetric Surveying in Kamuikotan Vallay, , Japan Colorado River, USA

Simulated by T. Inoue (2019)

Shiribetsu River Hokkaido Japan

Antelope Canyon, USA Courtesy from T. Inoue, CERI Uyuni Lake, Bolivia (FEB 2019)

Copyright iRIC Project THE END May the iRIC be with you….