[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 …

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 …

Features of surface physical quantities and temporal-spatial evolution of wall-normal enstrophy flux in wall-bounded flows

T Chen, T Liu, LP Wang - Physics of Fluids, 2021 - pubs.aip.org
This paper presents a concise derivation of the temporal-spatial evolution equation of the
wall-normal enstrophy flux on a no-slip flat wall. Each contribution to the evolution is …

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 …

Global linear instability analysis of thermal convective flow using the linearized lattice Boltzmann method

HK Jiang, K Luo, ZY Zhang, J Wu, HL Yi - Journal of Fluid Mechanics, 2022 - cambridge.org
Modal global linear stability analysis of thermal convection is performed with the linearized
lattice Boltzmann method (LLBM). The onset of Rayleigh–Bénard convection in rectangular …

Spatio-temporal flow structures in the three-dimensional wake of a circular cylinder

S Le Clainche, JM Pérez, JM Vega - Fluid Dynamics Research, 2018 - iopscience.iop.org
A new method to analyze spatio-temporal flow structures is presented. It consists on
applying a higher order dynamic mode decomposition sequentially, in time and space. The …

Centerline instabilities on the hypersonic international flight research experimentation HIFiRE-5 elliptic cone model

P Paredes, V Theofilis - Journal of Fluids and Structures, 2015 - Elsevier
Linear instability of the three-dimensional boundary-layer over the Hypersonic International
Flight Research Experimentation 5 (HIFiRE-5) flight test geometry, ie a rounded-tip 2: 1 …

Lie derivatives of fundamental surface quantities in incompressible viscous flows

T Chen, T Liu - Physics of Fluids, 2023 - pubs.aip.org
Lie derivative is an important concept in differential geometry. From the perspective of
theoretical fluid dynamics, the present paper evaluates and interprets the Lie derivatives of …

[HTML][HTML] Near-wall Lamb vector and its temporal–spatial evolution in the viscous sublayer of wall-bounded flows

T Chen, T Liu - AIP Advances, 2022 - pubs.aip.org
This paper gives the relation between the Lamb vector and fundamental surface quantities
in the vicinity of a no-slip flat wall using the Taylor-series expansion solution of the Navier …

Structures of skin friction, surface pressure, and boundary enstrophy flux in attachment-line flow

T Liu - Journal of Fluids Engineering, 2020 - asmedigitalcollection.asme.org
Structures of Skin Friction, Surface Pressure, and Boundary Enstrophy Flux in Attachment-Line
Flow | J. Fluids Eng. | ASME Digital Collection Skip to Main Content American Society of …