Evans function computation for the stability of travelling waves

B Barker, J Humpherys, G Lyng… - … Transactions of the …, 2018 - royalsocietypublishing.org
In recent years, the Evans function has become an important tool for the determination of
stability of travelling waves. This function, a Wronskian of decaying solutions of the …

Supersonic Reacting Jet Flows from a Three-Dimensional Divergent Conical Nozzle

G Lai, W Sheng - SIAM Journal on Mathematical Analysis, 2023 - SIAM
The study of supersonic jet flows from a nozzle is significant in practical applications in jet
engine and rocket technology. This paper studies supersonic reacting jet flows from a three …

Stability of detonation profiles in the ZND limit

K Zumbrun - Archive for rational mechanics and analysis, 2011 - Springer
Confirming a conjecture of Lyng–Raoofi–Texier–Zumbrun, we show that stability of strong
detonation waves in the ZND, or small-viscosity, limit is equivalent to stability of the limiting …

Galloping instability of viscous shock waves

B Texier, K Zumbrun - Physica D: Nonlinear Phenomena, 2008 - Elsevier
Motivated by physical and numerical observations of time oscillatory “galloping”,“spinning”,
and “cellular” instabilities of detonation waves, we study Poincaré–Hopf bifurcation of …

Two-dimensional steady supersonic exothermically reacting Euler flow past Lipschitz bending walls

GQG Chen, J Kuang, Y Zhang - SIAM Journal on Mathematical Analysis, 2017 - SIAM
We are concerned with the two-dimensional steady supersonic reacting Euler flow past
Lipschitz bending walls that are small perturbations of a convex one, and establish the …

The Erpenbeck high frequency instability theorem for Zeldovitch–von Neumann–Döring detonations

O Lafitte, M Williams, K Zumbrun - Archive for Rational Mechanics and …, 2012 - Springer
The rigorous study of spectral stability for strong detonations was begun by Erpenbeck
(Phys. Fluids 5: 604–614 1962). Working with the Zeldovitch–von Neumann–Döring (ZND) …

High-frequency asymptotics and one-dimensional stability of Zel'dovich–von Neumann–Döring detonations in the small-heat release and high-overdrive limits

K Zumbrun - Archive for Rational Mechanics and Analysis, 2012 - Springer
We establish one-dimensional spectral, or “normal modes”, stability of Z el'dovich–von N
eumann–Döring detonations in the small heat release limit and the related high overdrive …

Spectral stability of noncharacteristic isentropic Navier–Stokes boundary layers

N Costanzino, J Humpherys, T Nguyen… - Archive for rational …, 2009 - Springer
Building on the work of Barker, Humpherys, Lafitte, Rudd, and Zumbrun in the shock wave
case, we study stability of compressive, or shock-like, boundary layers of the isentropic …

Stability of classical shock fronts for compressible hyperelastic materials of Hadamard type

RG Plaza, F Vallejo - Archive for Rational Mechanics and Analysis, 2022 - Springer
This paper studies the uniform and weak Lopatinskiĭ conditions associated with classical
(Lax) shock fronts of arbitrary amplitude for compressible hyperelastic materials of …

High-frequency stability of detonations and turning points at infinity

O Lafitte, M Williams, K Zumbrun - SIAM Journal on Mathematical Analysis, 2015 - SIAM
The rigorous study of spectral stability of strong detonations was begun by Erpenbeck in the
1960s. Working with the Zeldovitch--von Neumann--Döring (ZND) model, he identified two …