Print Email Facebook Twitter Simulating complex noise barrier reflections Title Simulating complex noise barrier reflections Author van der Eerden, F.J.M. Lutgendorf, D. de Roo, F. Publication year 2011 Abstract Within the EU FP7 QUIESST project, QUIeting the Environment for a Sustainable Surface Transport, a test method is being developed for the reflectivity of noise barriers. The method needs to account for a complex shape of barriers and the use of various types of absorbing materials. The performance of a barrier is to be measured in the near field, whereas the far field effects will be used to define an appropriate indicator for the rating of the noise barrier reflecting characteristics. In this QUIESST work package, numerical simulations in the time domain as well as the frequency domain have been used and are compared. This paper presents a method to relate the near field and far field simulations. At the moment near field simulations are used whereas near field measurements will be used in the future. Validation of the method is foreseen by means of measurements in the near and far field. Further, an engineering computation method will be developed as well as an indicator for rating the reflectivity of noise barriers. Subject Physics & ElectronicsAS - Acoustics & SonarTS - Technical SciencesAcoustics and AudiologyIndustrial InnovationNoise barriersOutdoor propagationNumerical modeling To reference this document use: http://resolver.tudelft.nl/uuid:eff48dc2-39ad-4be3-af23-45068a996740 TNO identifier 462254 Publisher The Institute of Noise Control Engineering of the USA, Washington, D.C. Source 40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011, 4-7 September 2011, Osaka, Japan Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.