AFMDR2015

2nd International Workshop on the Application of Fluid Mechanics to Disaster Reduction, Sendai, Japan, March 16-17, 2015

Cyclone (hurricane/typhoon/extra-tropical) modeling and damage assessment

Wave_0001012-D BOSZ Boussinesq simulation of storm waves in Hernani; Bathymetry and topography were measured with differential GPS and an echo-sounder, and the incoming wave train was calculated via a SWAN spectrum output from a Delft3D/SWAN typhoon model in 150 m water depth (click on image above to play or download movie).

The full workshop program is available here: SendaiFluids2015program

Presentations from the workshop are available here: Chanson, Lawler, BagusRoeber, Mori, Kim, Pringle, Guikema, Tomiczek, Retif, Miyashita, Cheung, Nobuoka, Watanabe, Auger, van Ormondt

Field trip guidebook from the March 17 study trip, compiled by Kanako Iuchi, Elizabeth Maly, and David Nguyen

Photos from the workshop:

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Sendai Port evacuation facility

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Kesennuma reconstruction observation mound

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Ishinomaki

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Ishinomaki

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Sendai Port evacuation facility

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Kesennuma seawall

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Coastal embankment construction

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Minamisanriku Takano hall

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Minamisanriku disaster command center skeleton

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Old Kitakami River mouth embankment construction

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Workshop program overview:

March 16, 2015 Monday

Morning session: Coming to cross-border consensus on the state-of-the-art in hurricane and typhoon modeling and damage assessmentTalks in this session will focus on models used for fore-/hind-casting of physical damage mechanisms (wind, storm surge, waves), as well as tools used to predict and assess damage itself. Presentations on building codes and measures enacted to mitigate damage from hurricanes and typhoons are also included.

Afternoon session: Modeling unexpected and destructive waves such as the tsunami-like bore that devastated the town of Hernani, Eastern Samar, Philippines during Typhoon Haiyan. The bore caught on film by Nickson Gensis of Plan Philippines International came as a surprise to coastal engineers because its duration was longer than that of the 15 – 20 second period waves generated by the storm, and might be the most destructive manifestation of surf beat and wave groups ever witnessed. The morning session will focus on numerical modeling of typical and atypical wave phenomena, which have been encountered in large storms. Specific emphasis will be put on nearshore wave processes during extreme wave events to better understand the disaster potential of these waves.

March 17, 2015 Tuesday

All day study tour of towns on the Tohoku Coast rebuilding from the 2011 Great East Japan Tsunami. A bus will be chartered to pick up participants early morning at the hotel in Sakunami, and return to Sakunami in the evening.

Details

This workshop is a public session of the UN World Conference on Disaster Risk Reduction, which is being held in Sendai March 14-18, 2015 (since this is a public session, registration for the main UN conference is NOT necessary). Due to the UN conference, hotel booking in downtown Sendai is closed, but we have reserved rooms for AFMDR2015 workshop participants in Sakunami Onsen, a hot spring resort in the mountains of western Sendai, at a rate of approximately US $100 per night per person from March 15 (check-in) to March 18 (check-out). Transportation between the hotel and the conference venue (Sendai Shimin Kaikan) will be provided. Depending on the arrival and departure time of participants, we may arrange group transportation from/to Sendai station. Sakunami Onsen is also accessible by public transit from Sendai station and Sendai Airport via the JR Senzan line train. Please see the full conference program for more details.

Please email us at bricker [at] irides.tohoku.ac.jp if you have an interest in attending AFMDR2015.

2-phase VOF OpenFOAM simulation of waves running up onto land in Hernani. Red=onshore flow, blue=offshore flow, speed in m/s. Movie speed is 10 times real-time. Vertical axis distorted 10 times horizontal axis.  Offshore boundary is a piston wavemaker with spectrum output from a Delft3D/SWAN typhoon model in 150 m water depth.

Wave_0006011-D BOSZ Boussinesq simulation of storm waves in Hernani (fictional bathymetry); boundary condition is a TMA spectrum with Hsig=15m and Tpeak=15s (click on image above to play or download movie).