# Meeting Details

Title: Unusual place! :See Lyle Long's Computation and Aircraft Engine Noise'' CCMA PDEs and Numerical Methods Seminar Series Prof. Philip J. Morris, Boeing / A.D. Welliver Professor of Aerospace Engineering Monday April 6, 3:35 -- 4:25pm 203 Sackett Building. The primary sources of noise in a modern high bypass ratio turbofan engine are associated with the jet exhaust and the fan. The calculation of the noise radiated by the engine presents many challenges. In this seminar, these challenges and strategies to overcome them are discussed. The particular focus will be on the simulation of the turbulent jet flow and the noise it radiates. The limitations of computational resources and the need for relatively rapid predictions dictate the choice of the numerical approach. The possible approaches and the reasons for their selection will be discussed. Examples will be given of benchmark tests of these methods as well as jet noise predictions for jets of different exit geometry. Some discussion of the prediction of the radiation of fan exhaust noise will also be given. The reasons for the selection of the numerical approaches and example solutions for this problem will also be provided. This is part of the Computational Science Invited Seminar Series (AERSP 590), see the webpage for future seminars: http://www.csci.psu.edu/seminars/springsem.html This is a required course for the Computational Science Graduate Minor: http://www.csci.psu.edu/minor.html which is administered by Prof. Lyle Long (http://www.personal.psu.edu/lnl )