Natural Hazards Engineering Research Infrastructure Experimental Facility for Coastal Waves/Surge and Tsunamis At Oregon State University

Abstract eng:
Through the Natural Hazards Engineering Research Infrastructure program (NHERI) established by the National Science Foundation in the United States, a suite of experimental facilities has been made available to the research community to advance the resilience of civil infrastructure and communities to coastal storm and earthquakes hazards. An experimental facility called the NHERI Coastal Wave/Surge and Tsunami Experimental Facility (CWST-EF) was created through this program that serves as a state-of-the-art engineering research, education, and outreach center related to tsunamis caused by earthquakes and coastal waves and surge caused by windstorms. CWST-EF includes two specialized large-scale resources for physical model testing of coastal systems: a large wave flume (LWF) and directional wave basin (DWB). The LWF is the largest of its kind in North America and can generate repeatable regular, irregular, tsunami, and user-defined waves. The LWF is used to induce and measure wave forces on constructed and natural ocean features at large Reynolds numbers, providing high resolution wave structure interactions with minimum distortion due to viscous effects. The DWB contains a multidirectional piston-type wavemaker with 30 independently-programmable servomotor-driven points. The wavemaker is also capable of generating repeatable regular, irregular, tsunami, and user-defined waves. These facilities are available to the research community to address grand challenges in tsunami and coastal windstorm surge and wave hazards that include built and natural environments.

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