In order to carry out research on complex flow processes, the Laser Zentrum Hannover e.V. (LZH) has developed a special sensor that can be used to measure turbulent jet flows.
Turbulence is one of the last phenomena in the field of physics which has is still not understood. However, the rapid development of computer simulations and experimental technology has led to a better understanding turbulence. Phenomena like reducing the turbulence of ships by using micro-bubbles, or increasing the flow rate in pipelines by adding polymers are beneficial, but still not understood completely.
At the LZH, an innovative profile sensor is being developed, which can be used to determine the velocity profile of turbulent shear flows, with high spatial and temporal resolutions. The profile measurements can, for example, provide information on spatial-temporal correlations in turbulent flows. Furthermore, the sensor can be used for a number of technical applications such as flow measurements in high-pressure gas or oil pipelines, or for flow measurements for fuel injection nozzles, on airfoils and aircraft surfaces, or in aircraft turbo-engines.
Michael Botts | idw
Dresdner scientists print tomorrow’s world
08.02.2017 | Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS
New technology for mass-production of complex molded composite components
23.01.2017 | Evonik Industries AG
In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport
Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...
The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.
The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...
Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...
Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".
Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...
13.02.2017 | Event News
10.02.2017 | Event News
09.02.2017 | Event News
23.02.2017 | Physics and Astronomy
23.02.2017 | Earth Sciences
23.02.2017 | Life Sciences