Modal analysis of fluid flows: An overview

K Taira, SL Brunton, STM Dawson, CW Rowley… - Aiaa Journal, 2017 - arc.aiaa.org
SIMPLE aerodynamic configurations under even modest conditions can exhibit complex
flows with a wide range of temporal and spatial features. It has become common practice in …

Global linear instability

V Theofilis - Annual Review of Fluid Mechanics, 2011 - annualreviews.org
This article reviews linear instability analysis of flows over or through complex two-
dimensional (2D) and 3D geometries. In the three decades since it first appeared in the …

Progress in physical modeling of compressible wall-bounded turbulent flows

C Cheng, X Chen, W Zhu, W Shyy, L Fu - Acta Mechanica Sinica, 2024 - Springer
Understanding, modeling and control of the high-speed wall-bounded transition and
turbulence not only receive wide academic interests but also are vitally important for high …

[PDF][PDF] Advances in global instability computations: from incompressible to hypersonic flow

P Paredes - Universidad Politécnica de Madrid: PhD Dissertation, 2014 - core.ac.uk
The present thesis constitutes a step forward in advancing the frontiers of knowledge of fluid
flow instability from a physical point of view, as a consequence of having been successful in …

On the birth of stall cells on airfoils

D Rodríguez, V Theofilis - Theoretical and Computational Fluid Dynamics, 2011 - Springer
Critical point theory asserts that two-dimensional topologies are defined as degeneracies
and any three-dimensional disturbance of a two-dimensional flow will lead to a new three …

Structural changes of laminar separation bubbles induced by global linear instability

D Rodriguez, V Theofilis - Journal of Fluid Mechanics, 2010 - cambridge.org
The topology of the composite flow fields reconstructed by linear superposition of a two-
dimensional boundary layer flow with an embedded laminar separation bubble and its …

Order 104 speedup in global linear instability analysis using matrix formation

P Paredes, M Hermanns, S Le Clainche… - Computer Methods in …, 2013 - Elsevier
A unified solution framework is presented for one-, two-or three-dimensional complex non-
symmetric eigenvalue problems, respectively governing linear modal instability of …

The two classes of primary modal instability in laminar separation bubbles

D Rodríguez, EM Gennaro, MP Juniper - Journal of Fluid Mechanics, 2013 - cambridge.org
The self-excited global instability mechanisms existing in flat-plate laminar separation
bubbles are studied here, in order to shed light on the causes of unsteadiness and three …

Four decades of studying global linear instability: Progress and challenges

F Gómez, SL Clainche, P Paredes, M Hermanns… - AIAA journal, 2012 - arc.aiaa.org
THERE is good reason for optimism regarding the future of global linear instability and a
certain degree of euphoria surrounding its recent success [1, 2], three decades after the first …

On three-dimensional global linear instability analysis of flows with standard aerodynamics codes

F Gomez, R Gómez, V Theofilis - Aerospace Science and Technology, 2014 - Elsevier
The development of a general Jacobian-free approach for the solution of large-scale global
linear instability analysis eigenvalue problems by coupling a time-stepping algorithm with …