FENE

FENE stands for the finitely extensible nonlinear elastic model of a long-chained polymer. It simplifies the chain of monomers by connecting a sequence of beads with nonlinear springs. The spring force law is governed by inverse Langevin function or approximated by the Warner's relationship

${\displaystyle {\text{F}}_i=\frac{H{\text{R}}_i}{1-(R_i/L_{max}{)}^2}}$

Where ${\displaystyle R_i=|{\text{R}}_i|}$ and H is the spring constant.

Total stretching force on ith bead can be written as: ${\displaystyle {\text{F}}_i-{\text{F}}_{i-1}}$.

• FENE-P

• Dynamics of dissolved polymer chains in isotropic turbulence

• QPolymer: an open source (for Mac OS X) FENE model Brownian dynamics simulation software

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