Abstract
A new concept of micro propulsion based upon laser ablation MICROLAS was introduced by the Institute of Technical Physics (ITP) of DLR Stuttgart. Pulsed lasers are used for material removal of a target. The amount of removed material should be variable due to the tunability of input laser energy and repetition rate, resulting in well defined impulse bits and low small thrusts down to the sub-μN scale. We present a modeling approach of laser ablation in order to calculate important figures of merit in aerospace engineering. The program applied is IMD (http://imd.itap.uni-stuttgart.de), an open source molecular dynamics package of the Institute of Functional Materials Quantum Technologies (FMQ). Results are compared with a hydrodynamic code, VLL (http://vll.ihed.ras.ru), as well as with experimental investigations.
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Acknowledgements
Financial funding from the German Science Foundation DFG for the Collaborative Research Center SFB 716 “Dynamic simulations of systems with large particle numbers” in subproject B.5 “Laser ablation: from simple metals to complex materials” is greatly acknowledged.
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Förster, D.J., Scharring, S., Roth, J., Eckel, HA. (2015). Molecular Dynamics Simulations of Laser Induced Ablation for Micro Propulsion. In: Nagel, W., Kröner, D., Resch, M. (eds) High Performance Computing in Science and Engineering ‘14. Springer, Cham. https://doi.org/10.1007/978-3-319-10810-0_10
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DOI: https://doi.org/10.1007/978-3-319-10810-0_10
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