Jet Noise Prediction Benchmark for Landing and Takeoff Noise of Supersonic Aircraft

Abstract

This paper presents a brief overview of the EU-Project SENECA (LTO noiSe and EmissioNs of supErsoniC Aircraft) aiming to support certification authorities and the International Civil Aviation Organization's Committee on Aviation Environmental Protection (ICAO CAEP) by providing comprehensive and reliable data regarding the achievable noise levels during takeoff and landing and the global climate impact of civil supersonic aircraft. The focus of the paper is on the jet noise prediction benchmark test conducted by the project members to increase the reliability of the calculated noise certification levels. The objectives are to validate a correct implementation of the models and to identify the most suitable models for predicting jet noise of this specific type of supersonic aircraft engines. Overall three different semi-empirical jet noise models were used on four different test cases from literature. Results show remarkable differences of the predicted spectra. As expected the models fit their respective experimental data sets better than other models.