Time-dependent jet flow and noise computationsMethods for computing jet turbulence noise based on the time-dependent solution of Lighthill's (1952) differential equation are demonstrated. A key element in this approach is a flow code for solving the time-dependent Navier-Stokes equations at relatively high Reynolds numbers. Jet flow results at Re = 10,000 are presented here. This code combines a computationally efficient spectral element technique and a new self-consistent turbulence subgrid model to supply values for Lighthill's turbulence noise source tensor.
Document ID
19910027852
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Berman, C. H. (AeroChem Research Laboratories, Inc. Princeton, NJ, United States)
Ramos, J. I. (Carnegie-Mellon University Pittsburgh, PA, United States)
Karniadakis, G. E. (AeroChem Research Labs., Inc. Princeton, NJ, United States)
Orszag, S. A. (Princeton University NJ, United States)