Kyushu University Academic Staff Educational and Research Activities Database
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Masaru Yamashiro Last modified date:2019.04.18

Associate Professor / Faculty of Engineering


Graduate School
Undergraduate School
Other Organization


Homepage
http://www7.civil.kyushu-u.ac.jp/engan/
Coastal and Ocean Eng. Lab. .
Academic Degree
Dr. Eng.
Field of Specialization
Coastal Engineering
Outline Activities
Outline of research:
1. In order to investigate some possible changes in occurrence probability of storm surge due to global warming in Ariake Sea, we improve numerical simulation models and conduct many numerical computations.
2. The seawall for artificial islands is required to protect the inland facilities from severe wave actions such as wave run-up, wave-overtopping, and high water spray. However, it is almost impossible to completely prevent wave-overtopping in deepwater by a conventional upright seawall. In our study, considering the characteristics of the wave run-up in deepwater, we are tring to develop a non wave-overtopping type seawall with a low crown height.
3. Although breakwaters and seawalls are very effective to protect coastal areas from severe wave attacks, they often generate a large quantity of seawater spray when the waves collide with them. To obtain the basic knowledge on the transportation of the spray caused by violent wave run-up at a vertical breakwater, we have been conducting model experiments and field observations.
Research
Research Interests
  • Transportation of Spray Generated by Wave-Overtopping at Vertical Breakwater
    keyword : Sea water spray, Wave-overtopping, Coastal structures, Laboratory experiments, Field obseavations
    2005.04.
  • Occurrence Characteristics of Storm Surge in Ariake Sea
    keyword : Ariake Sea, Storm Surge, Typhoon
    2006.04.
  • Real-Time Prediction of Storm Surges Based on Meteorological Observed Data
    keyword : Storm Surge, Artificial Neural Network, Typhoon, Ariake Sea
    2009.04~2011.03.
  • Development of Non Wave-Overtopping Type Seawall in Deepwater
    keyword : Non Wave-Overtopping Type Seawall, Wave-overtopping
    2001.04~2011.03The seawall for artificial islands is required to protect the inland facilities from severe wave actions such as wave run-up, wave-overtopping, and high water spray. However, it is almost impossible to completely prevent wave-overtopping in deepwater by a conventional upright seawall. In this study, considering the characteristics of the wave run-up in deepwater, we have tried to develop a non wave-overtopping type seawall with a low crown height..
  • Development and verification of a combined method of BEM and VOF
    keyword : Boundary Element Method, Volume Of Fluid (VOF)
    2001.04~2008.03A numerical analysis model for solving non-linear wave-structure interactions, based on the coupling of a Boundary Element Method (BEM) which is applied to the region far from the structure where the fluid motion is less non-linear and a Volume Of Fluid (VOF) method which is applied to the region around the structure where the fluid motion is highly non-linear, is developed..
Academic Activities
Awards
  • Effects of Dissipation Blocks on Reduction of Salt Water Spray Caused at a Vertical Breakwater
    Masaru YAMASHIRO, Akinori YOSHIDA, Tomooki HIDAKA, Yohei MIKUNI and Yasuhiro NISHII
    Journal of the Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) Vol.66, No.1, pp. 736 - 740.
Social
Professional and Outreach Activities
KOREA MARITIME UNIVERSITY(KMU) - KYUSHU UNIVERSITY(KU) - PORT AND AIRPORT RESEARCH INSTITUTE(PARI) Joint Seminar
1st Joint Seminar(2007.2.13)
2nd Joint Seminar(2008.2.1)
3rd Joint Seminar(2009.1.29)
4th Joint Seminar(2012.7.30).