32 citations · 64 across the 10 of their papers we have counts for
7 papers · 2 filters
Recursive one-way Navier Stokes equations with PSE-like cost
Min Zhu, Aaron Towne
Spatial marching methods, in which the flow state is spatially evolved in the downstream direction, can be used to produce low-cost models of flows containing a slowly varying dire…
Efficient global resolvent analysis via the one-way Navier-Stokes equations. Part 2. Optimal response
Georgios Rigas, Omar Kamal, Aaron Towne +1
In this study, we develop an efficient approach for approximating resolvent modes via spatial marching. Building on the methodology from Part 1, we leverage the ability of the proj…
Efficient global resolvent analysis via the one-way Navier-Stokes equations. Part 1. Forced response
Aaron Towne, Georgios Rigas, Ethan Pickering +1
Resolvent analysis is a powerful tool for modeling and analyzing turbulent flows and in particular provides an approximation of coherent flow structures. Despite recent algorithmic…
Wavepacket modulation in shock-containing jets
Petrônio A. S. Nogueira, Hamish W. A. Self, Aaron Towne +1
We propose a new approach to predict the modulation of wavepackets in shock-containing jets. With a modelled ideally expanded mean flow as input, an approximation of the shock-cell…
Reflection and transmission of a Kelvin-Helmholtz wave incident on a shock in a jet
Matteo Mancinelli, Eduardo Martini, Vincent Jaunet +3
Screech tones in supersonic jets are underpinned by resonance between downstream-travelling Kelvin-Helmholtz waves and upstream-travelling acoustic waves. Specifically, recent work…
Absolute instability in shock-containing jets
Petrônio A. S. Nogueira, Peter Jordan, Vincent Jaunet +3
We present an analysis of the linear stability characteristics of shock-containing jets. The flow is linearised around a spatially periodic mean, which acts as a surrogate for a me…