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Fraunhofer-Institut Kurzzeitdynamik Ernst-Mach-Institut


The Fraunhofer Institute for High-Speed Dynamics, otherwise known as the Ernst-Mach-Institut (EMI), is concerned with the physical and technical aspects of high-speed mechanical and fluid dynamic processes. That includes experimental and numerical analysis of shock waves in solids, liquids, and gases; fluid-flow and combustion processes; impact and penetration processes over a wide range of velocities from 10 m/s to 10 km/s; the behavior of structures under shock and impact; the behavior of elastic media when highly stretched or at high rates of dilatation.

The applications are in the fields of military and civil protection (of persons, vehicles, and buildings); protection methods for spacecraft; crash testing in the automobile sector; damage prevention and containment (the propagation of shock waves in the air and their interaction with structures); the use and effects of explosives; traffic safety.

The Institute employs a wide variety of methods for measuring and recording high-speed processes over times ranging from milliseconds down to nanoseconds, at pressures up to 1 megabar, and involving dilatation rates up to 106 per second. In parallel it carries out computer simulations of compressible fluid flow at high Reynolds numbers and using non-linear finite-element methods; it develops computer codes and adapts them to specific applications.


 

Fraunhofer-Institut Kurzzeitdynamik Ernst-Mach-Institut
EMI

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Further information: http://www.emi.fraunhofer.de/