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Particle Trajectories in Linear Water Waves

Posted by macy 2245 days ago in Fluid Mechanics from http://www.springerlink.com

This paper proves that in linear periodic gravity water waves there are no closed orbits for the water particles in the fluid. Each particle experiences per period a backward-forward motion that leads overall to a forward drift. ... Read More

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Invisible Waves Shape Continental Slope

Posted by Svalbard 2254 days ago in Fluid Mechanics from http://www.sciencedaily.com

A class of powerful, invisible waves hidden beneath the surface of the ocean can shape the underwater edges of continents and contribute to ocean mixing and climate, researchers from The University of Texas at Austin have found. The scientists simulated ocean conditions in a laboratory aquarium and found that "internal waves" generate intense currents when traveling at the same angle as that of t ... Read More

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A Note on the Effect of Wind Waves on Vertical Mixing in Franks Tract, Sacramento-San Joaquin Delta, California

Posted by dane307 2254 days ago in Fluid Mechanics from http://repositories.cdlib.org

A one-dimensional numerical model that simulates the effects of whitecapping waves was used to investigate the importance of whitecapping waves to vertical mixing at a 3-meter-deep site in Franks Tract in the Sacramento-San Joaquin Delta over an 11-day period. Locally-generated waves of mean period approximately 2 s were generated under strong wind conditions; significant wave heights ranged from ... Read More

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Tunnel planned to tackle Abu Dhabi wastewater issue

Posted by bodmer 2254 days ago in Fluid Mechanics from http://www.bi-me.com

UAE. The Abu Dhabi Sewerage Services Company (ADSSC) is stepping up efforts to implement the Strategic Tunnel Enhancement Programme (STEP) during the next six years to establish a tunnel that will cater to the immediate, short and long-term needs of Abu Dhabi's wastewater and drainage issues. The STEP project comprises 40 kilometres of deep sewerage tunnel and two new large pumping stations. Omur ... Read More

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YouTube - Winfield, Missouri Levee Breach

Posted by Kodiak22 2255 days ago in Fluid Mechanics from http://www.youtube.com

Residents in and around Winfield, Missouri were urged to evacuate their homes after another levee breach. Authorities say a 280-mile stretch of the Mississippi River near Winfield is expected to remain closed for over a week. ... Read More

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The danger of rip currents

Posted by eucalyptis 2255 days ago in Fluid Mechanics from http://link.brightcove.com

This Weather Channel video talks about rip currents, and how they form in the coastal zone. Lots of people lose their lives every year from getting pulled out past the surf zone and drowning due to these natural beach features, so this is a good video to watch. ... Read More

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Solar-powered water purification just got six times better

Posted by Svalbard 2255 days ago in Fluid Mechanics from http://www.plentymag.com

Solar-powered water filtration systems are gaining traction, if recent developments are any indication. A University of Ottawa graduate student’s desalination method is grabbing attention, first by winning the Ottawa Venture Tech Challenge, a $10,000 award, and by beginning to pick up funding to pursue his idea. According to the Globe and Mail, Mohammed Rasool Qtaishat began his journey to Ottawa ... Read More

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Levee breach caused by muskrats

Posted by dane307 2256 days ago in Fluid Mechanics from http://www.weather.com

Muskrats are responsible for causing thousands of acres of flooding in Missouri as they built dens the ultimately led to the weakening and failure of a section of a levee. ... Read More

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