Direct Harmonic Linear Navier-Stokes Methods for Efficient Simulation of Wave Packets

by National Aeronautics and Space Administration

Wave packets produced by localized disturbances play an important role in transition in three-dimensional boundary layers, such as that on a swept wing. Starting with the receptivity process, we show the effects of wave-space energy distribution on the development of packets and other three-dimensional disturbance patterns. Nonlinearity in the receptivity process is specifically addressed, including demonstration of an effect which can enhance receptivity of traveling crossflow disturbances. An efficient spatial numerical simulation method is allowing most of the simulations presented to be carried out on a workstation. Streett, C. L. Langley Research Center NASA/TM-1998-207320, NAS 1.15:207320, AIAA Paper 98-0784 ...

30 pages, Paperback

Published August 17, 2018

About the author

The National Aeronautics and Space Administration (NASA) is an independent agency of the U.S. federal government responsible for the civil space program, aeronautics research, and space research.