Finite extensible nonlinear elastic
WebIn these simulations they assumed that block copolymers and surfactants were represented by chains of soft spheres connected by an finitely extensible nonlinear elastic potential, non-Hookean dumbbells [22], which had been employed earlier in the simulations of the dynamics of polymer blends and block copolymers by Grest et al. [23] and Murat ... WebOne of the most classical models to describe them is the FENE (Finite Extensible Nonlinear Elastic) dumbbell model. We prove global existence of weak solutions to the FENE dumbbell model of polymeric flows. The main difficulty is the passage to the limit in a nonlinear term that has no obvious compactness properties. The proof uses many weak ...
Finite extensible nonlinear elastic
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WebBrian Anderson is an Associate Professor at Brigham Young University (BYU) in the Dept. of Physics & Astronomy. Prior to coming to BYU, he … WebThis juxtaposition of simultaneous softening and stiffening suggests a general network structure composed of non-linear elastic strain-stiffening elements, here modeled as finite extensible non-linear elastic (FENE) springs, in which network connections are destroyed as elements are stretched.
WebMar 29, 2010 · Over a wide range of shear rates, this distribution can be mapped onto a simple theoretical finite-extensible-nonlinear-elastic dumbbell model with fitted anisotropic effective spring constants. The tails of the angular distribution functions are consistent with scaling predictions borrowed from the bulk dumbbell model. WebThe ability of a simple coarse-grained finite-extensible nonlinear elastic (FENE) Lennard-Jones (LJ) polymer model to be crystallized is investigated by molecular dynamics …
WebJun 16, 2014 · [Show full abstract] (NS) description of the solvent based on the lattice Boltzmann models (LBM) is here coupled to constitutive equations for finite extensible non-linear elastic dumbbells with ... WebApr 11, 2024 · In this article we derive the equations that constitute the nonlinear mathematical model of one-dimensional extensible elastic beam with temperature and microtemperatures effects. The nonlinear governing equations are derived by applying the Hamilton principle to full von Kármán equations in the framework of Euler-Bernoulli beam …
WebA new structure, generalized lattice nonlinear spring model (GLNSM), which adopts non-linear FENE-LJ potential instead of harmonic potential, has been coupled with lattice …
WebDec 29, 2016 · In this paper we mainly study the finite extensible nonlinear elastic (FENE) dumbbell model with dimension $${d \\geqq 2}$$ d ≧ 2 in the whole space. We first prove that there is only the trivial solution for the steady-state FENE model under some integrable condition. The obtained results generalize and cover the classical results for … meadows view dental calgaryWebApr 22, 2010 · One of the models to describe them is the FENE (Finite Extensible Nonlinear Elastic) dumbbell model. We prove global existence of weak solutions to the … meadowsweet chiropracticWebWe construct a Galerkin finite element method for the numerical approximation of weak solutions to a general class of coupled FENE-type finitely extensible nonlinear elastic dumbbell models that arise from the kinetic theory of dilute solutions of polymeric liquids with noninteracting polymer chains. meadows ward royal edinburgh hospitalWebWe present an enhanced moment-closure approximation to the finite extensible nonlinear elastic (FENE) models of polymeric fluids. This new moment-closure method involves the perturbation of the equilibrium probability distribution function (PDF), which takes into account of the drastic split into two spikes and centralized behavior under the large … meadows wedding venuemeadowsweet bakery maineWebOct 1, 2024 · The simulations employ the finitely extensible nonlinear Peterlin model to represent the dynamics of a dilute polymer solution. ... P. M. Ligrani, P. Dong, and M. Paige, “ Vortex generation in a finitely extensible nonlinear elastic Peterlin fluid initially at rest,” Eng ... “ The log-conformation tensor approach in the finite-volume ... meadowsweet cakesWebFENE is a two-body finite extensible nonlinear elastic two-body potential. R. B. Bird et al., Dynamics of Polymeric Liquids (Wiley, New York, 1977), Vols. 1 and 2. where k_energy_per_length_sq and R_0 are input bond parameters in the forcefield. Note that FENE is typically coupled with a WCA potential as described in LennardJonesCutShift. meadowsweet boarding wilmington nc