English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A grid-free variant of the Direct Simulation Monte Carlo (DSMC) method isproposed, named the Isotropic DSMC (I-DSMC) method, that is suitable forsimulating dense fluid flows at molecular scales. The I-DSMC algorithmeliminates all grid artifacts from the traditional DSMC algorithm; it isGalilean invariant and microscopically isotropic. The stochastic collisionrules in I-DSMC are modified to yield a non-ideal structure factor that givesconsistent compressibility, as first proposed in [Phys. Rev. Lett. 101:075902(2008)]. The resulting Stochastic Hard Sphere Dynamics (SHSD) fluid isempirically shown to be thermodynamically identical to a deterministicHamiltonian system of penetrable spheres interacting with a linear core pairpotential, well-described by the hypernetted chain (HNC) approximation. Weapply a stochastic Enskog kinetic theory for the SHSD fluid to obtain estimatesfor the transport coefficients that are in excellent agreement with particlesimulations over a wide range of densities and collision rates. The fluctuatinghydrodynamic behavior of the SHSD fluid is verified by comparing its dynamicstructure factor against theory based on the Landau-Lifshitz Navier-Stokesequations. We also study the Brownian motion of a nano-particle suspended in anSHSD fluid and find a long-time power-law tail in its velocity autocorrelationfunction consistent with hydrodynamic theory and molecular dynamicscalculations.

A Thermodynamically-Consistent Non-Ideal Stochastic Hard-Sphere Fluid