[LIVRE][B] Liutex and its applications in turbulence research

C Liu, H Xu, X Cai, Y Gao - 2020 - books.google.com
Liutex and Its Applications in Turbulence Research reviews the history of vortex definition,
provides an accurate mathematical definition of vortices, and explains their applications in …

Structure identification in pipe flow using proper orthogonal decomposition

LHO Hellström, AJ Smits - Philosophical Transactions of …, 2017 - royalsocietypublishing.org
The energetic motions in direct numerical simulations of turbulent pipe flow at Re τ= 685 are
investigated using proper orthogonal decomposition. The procedure is extended such that a …

Nonlinear mechanism of the self-sustaining process in the buffer and logarithmic layer of wall-bounded flows

HJ Bae, A Lozano-Duran, BJ McKeon - Journal of Fluid Mechanics, 2021 - cambridge.org
The nonlinear mechanism in the self-sustaining process (SSP) of wall-bounded turbulence
is investigated. Resolvent analysis is used to identify the principal forcing mode that …

Liutex core line and POD analysis on hairpin vortex formation in natural flow transition

S Charkrit, P Shrestha, C Liu - Journal of Hydrodynamics, 2020 - Springer
In this study, the new method of the vortex core line based on Liutex definition, also known
as Liutex core line, is applied to support the hypothesis that the vortex ring is not a part of the …

Proper orthogonal decomposition based on vorticity: Application in a two-phase slug flow

S Munir, MI Siddiqui… - Journal of Fluids …, 2022 - asmedigitalcollection.asme.org
Large-scale turbulent flow features in liquid (water) and gas (air) phases in the film region of
two-phase slug flow are identified by using proper orthogonal decomposition (POD) of the …

Coherent structures in turbulent square duct flow

R Matin, LHO Hellström, A Hernández-García… - International Journal of …, 2018 - Elsevier
The current work investigates coherent structures in a direct numerical simulation of
turbulent flow in a square duct at a Reynolds number of 3800. The flow is investigated using …

Physical Overview of the Instability in Laminar Wall-Bounded Flows of Newtonian Fluids at Subcritical Reynolds Numbers

H Mirzaee, G Ahmadi, R Rafee… - Journal of Heat and Mass …, 2024 - jhmtr.semnan.ac.ir
This paper reviews the latest findings on instability and subcritical transition to turbulence in
wall-bounded flows (ie, pipe Poiseuille flow, plane channel flow, and plane Couette flow) …

[PDF][PDF] Journal of Heat and Mass Transfer Research

H Mirzaee, G Ahmadi, R Rafee, F Talebi - Journal of Heat and Mass Transfer …, 2023 - sid.ir
This paper reviews the latest findings on instability and subcritical transition to turbulence in
wall-bounded flows (ie, pipe Poiseuille flow, plane channel flow, and plane Couette flow) …

POD analysis of losing symmetry in late flow transition

S Charkrit, X Dong, C Liu - AIAA Scitech 2019 Forum, 2019 - arc.aiaa.org
The study of turbulence is attractive for many researchers in fluid dynamics fields. The
transition stage from laminar to turbulent flow in boundary layers have been studied for a …

[LIVRE][B] Simulation based uncertainty analysis of flow rate prediction

A Weissenbrunner - 2021 - search.proquest.com
Flow meters are usually calibrated in ideal flow conditions. In consequence, flow rate
measurements in non-ideal, so-called disturbed conditions are defective. These …