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The projections also serve to slow the water.
The professors of the Polytechnic University of Cartagena (UPCT) José María Carrillo and Juan García Bermejo participated in a trial of the world's largest projection obtained in the laboratory to analyze how energy gets dissipated by water desembalsada hydraulic dams.
"The hydraulic jump is a two-phase air-water flow that is used in 80% of dams worldwide," explains Professor García Bermejo.
The test was conducted last week at the premises of the Centre for Hydrographic Studies Centre for Studies and Experimentation of Public Works (CEH-CEDEX), next to the UPCT and Valencia Polytechnic conducted since 2012 the research project emulsifies .
The tested hydraulic jumps get desembalsada slow the water from 20 meters per second reaches in spillways ramps up to one meter per second, thus avoiding serious overflows and floods.
Due to the difficulty in measuring real size of prey, the tests are performed in laboratory models, which until now did not allow adequately simulate the conditions of an actual dam.
"The trial has filled the gap between laboratory models and actual prey.
Under these conditions, the speeds reached by the water are similar to those that can be found in reality? Explains Jose Maria Carrillo.
"The research results are applicable to 90% of the prey," Carrillo says.
Civil Engineering researcher recalls that Spain is the fifth country in the world with more dams, currently over 1,200.
The shoulder built laboratory has an input channel of an inclined ramp 6 feet tall and a bowl of dissipation 8 meters long and 2.5 meters high.
With such a device has been tested at flow rates of up to 560 liters per second and meter, yielding results aeration speed and energy dissipation.
In addition, researchers have made several videos with a high speed camera Support Service for Technological Research (SAIT) Polytechnic University of Cartagena.
This study is part of project emulsifies, the result of close collaboration between CEDEX, Polytechnic University of Valencia and the research group Hyd @ m of the Polytechnic University of Cartagena, led by Professor Luis Castillo.
Source: UPCT
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