% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Hassanian:1037658,
author = {Hassanian, R. and Helgadóttir, Á. and Bouhlali, L. and
Riedel, M.},
title = {{A}n experiment generates a specified mean strained rate
turbulent flow: {D}ynamics of particles},
journal = {Physics of fluids},
volume = {35},
number = {1},
issn = {1527-2435},
publisher = {American Institute of Physics},
reportid = {FZJ-2025-00823},
pages = {015124},
year = {2023},
abstract = {This study aimed to simulate straining turbulent flow
empirically, having direct similarities with vast naturally
occurring flows and engineering applications. The flow was
generated in and seeded with passive and inertial particles.
Lagrangian particle tracking and particle image velocimetry
were employed to extract the dynamics of particle statistics
and flow features, respectively. The studies for
axisymmetric straining turbulent flow reported that the
strain rate, flow geometry, and gravity affect particle
statistics. To practically investigate mentioned effects in
the literature, we present the behavior of both passive and
inertial particles from the novel experiment conducted on
initially homogeneous turbulence undergoing a sudden
axisymmetric expansion. We represent the result with two
different mean strains and Reynolds–Taylor microscales.
However, this study, in contrast to the previous studies,
considers the fields of inertial particles in the presence
of gravity. The result discloses that the novel designed and
conducted experiments simulated the flow satisfactorily.
Then, the particle behavior in such flow showed the
effectiveness of the flow distortion on particle dynamics
such as velocity root mean square and Reynolds stress.
Straining turbulence flow is subject to many industrial
applications and physics studies, such as stagnation points,
external flow around an airfoil, internal flow in changeable
cross section pipe, expansion in the engine mixing chamber,
and leading edge erosion. This study's conclusion could
apply constructively to these areas.},
cin = {JSC},
ddc = {530},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
(SDLs) and Research Groups (POF4-511) / RAISE - Research on
AI- and Simulation-Based Engineering at Exascale (951733) /
EUROCC - National Competence Centres in the framework of
EuroHPC (951732)},
pid = {G:(DE-HGF)POF4-5111 / G:(EU-Grant)951733 /
G:(EU-Grant)951732},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000911212900013},
doi = {10.1063/5.0134306},
url = {https://juser.fz-juelich.de/record/1037658},
}