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@ARTICLE{Philippi:912067,
author = {Philippi, Julien and Bechert, Mathias and Chouffart,
Quentin and Waucquez, Christophe and Scheid, Benoit},
title = {{L}inear stability analysis of nonisothermal glass fiber
drawing},
journal = {Physical review fluids},
volume = {7},
number = {4},
issn = {2469-990X},
address = {College Park, MD},
publisher = {APS},
reportid = {FZJ-2022-05294},
pages = {043901},
year = {2022},
abstract = {The draw resonance effect appears in fiber drawing
processes when the draw ratio,defined as the ratio between
the take-up and the inlet velocities, exceeds a critical
value.In many cases, inertia, gravity, and surface tension
cannot be neglected, and a modelcombining all these effects
is necessary in order to correctly describe the physics of
thephenomenon. Additionally, it is also known that cooling
can have a highly stabilizing effecton the draw resonance
instability. However, a detailed analysis encompassing the
effect ofinertia, gravity, surface tension, and temperature
is still lacking. Due to a destabilizingeffect induced by
geometry in the heat equation, we first show that the
maximum criticaldraw ratio for fiber drawing can be two
orders of magnitude lower than the one for the filmcasting
problem when the heat transfer coefficient is assumed
constant. By introducing ascaling making the fiber aspect
ratio an independent parameter, we next show that the
highvalue of the critical draw ratio encountered in
industrial applications could be rationalizedonly if we
consider that the heat transfer coefficient is not constant
but depends on boththe velocity and the cross-section area
of the fiber. Within this framework, we show howthe
practical stability window is affected by the five control
parameters: the draw ratio,the fiber aspect ratio, the inlet
temperature, the convective heat transfer coefficient, and
thestiffness of the non-homogeneous ambient temperature. We
finally discuss the influence ofradiative heat transfer on
the stability.},
cin = {IEK-11},
ddc = {530},
cid = {I:(DE-Juel1)IEK-11-20140314},
pnm = {1215 - Simulations, Theory, Optics, and Analytics (STOA)
(POF4-121) / DFG project 416229255 - SFB 1411:
Produktgestaltung disperser Systeme},
pid = {G:(DE-HGF)POF4-1215 / G:(GEPRIS)416229255},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000789342700003},
doi = {10.1103/PhysRevFluids.7.043901},
url = {https://juser.fz-juelich.de/record/912067},
}