TY - RPRT
A1 - Panda, S.
A1 - Wegener, R.
A1 - Marheineke, N.
T1 - Slender Body Theory for the Dynamics of Curved Viscous Fibers
T1 - Slender Body Theory for the Dynamics of Curved Viscous Fibers
N2 - The paper at hand presents a slender body theory for the dynamics of a curved inertial viscous Newtonian ber. Neglecting surface tension and temperature dependence, the ber ow is modeled as a three-dimensional free boundary value problem via instationary incompressible Navier-Stokes equations. From regular asymptotic expansions in powers of the slenderness parameter leading-order balance laws for mass (cross-section) and momentum are derived that combine the unrestricted motion of the ber center-line with the inner viscous transport. The physically reasonable form of the one-dimensional ber model results thereby from the introduction of the intrinsic velocity that characterizes the convective terms.
N2 - The paper at hand presents a slender body theory for the dynamics of a curved inertial viscous Newtonian ber. Neglecting surface tension and temperature dependence, the ber ow is modeled as a three-dimensional free boundary value problem via instationary incompressible Navier-Stokes equations. From regular asymptotic expansions in powers of the slenderness parameter leading-order balance laws for mass (cross-section) and momentum are derived that combine the unrestricted motion of the ber center-line with the inner viscous transport. The physically reasonable form of the one-dimensional ber model results thereby from the introduction of the intrinsic velocity that characterizes the convective terms.
T3 - Berichte des Fraunhofer-Instituts für Techno- und Wirtschaftsmathematik (ITWM Report) - 86
KW - Curved viscous fibers
KW - Fluid dynamics
KW - Navier-Stokes equations
KW - Free boundary value problem
KW - Asymptotic expansions
KW - Slender body theory
Y1 - 2006
UR - https://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/1713
UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:386-kluedo-14153
ER -