Hybrid modelling for echo location and surface characterisation

de Cogan, D., Morton, M., Peel, D. and Sant, V. (2001) Hybrid modelling for echo location and surface characterisation. International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 14 (2). pp. 145-154. ISSN 0894-3370

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Abstract

The scattering of sound from surfaces by rotating sources such as the tips of helicopter rotor blades can be used as a method of locating and ranging obstructions which may represent a physical danger to the craft. Modelling such systems presents some difficulties but these can be overcome using a combination of TLM and phase-coherent ray-tracing. This paper describes the hybrid approach, particularly, the techniques for interfacing. The application to the specific problem of the scattering of rotor-tip noise from realistic targets involved the use of a simple PML and surface-conforming boundaries.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Computing Sciences
Depositing User:	Vishal Gautam
Date Deposited:	25 Aug 2011 15:10
Last Modified:	24 Oct 2022 03:48
URI:	https://ueaeprints.uea.ac.uk/id/eprint/22674
DOI:	10.1002/jnm.403

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