Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Brownian dynamics simulations of planar mixed flows of polymer solutions
  at finite concentrations   Periodic boundary conditions for planar mixed flows are implemented in the
context of a multi-chain Brownian dynamics simulation algorithm. The effect of
shear rate $\dot{\gamma}$, and extension rate $\dot{\epsilon}$, on the size of
polymer chains, $\left<R_e^2\right>$, and on the polymer contribution to
viscosity, $\eta$, is examined for solutions of FENE dumbbells at finite
concentrations, with excluded volume interactions between the beads taken into
account. The influence of the mixedness parameter, $\chi$, and flow strength,
$\dot{\Gamma}$, on $\left<R_e^2\right>$ and $\eta$, is also examined, where
$\chi \rightarrow 0$ corresponds to pure shear flow, and $\chi \rightarrow 1$
corresponds to pure extensional flow. It is shown that there exists a critical
value, $\chi_\text{c}$, such that the flow is shear dominated for $\chi <
\chi_\text{c}$, and extension dominated for $\chi > \chi_\text{c}$.

15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph