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

Present work proposes a multiple time-scale lattice-Boltzmann method (LBM) for solving coupled convection-diffusion equations with large variation in diffusion coefficients. The key to the proposed approach is to vary the computational time-step over the solution domain according to the value of the diffusion coefficient. The proposed approach removes the limited applicability of classical LBM in simulating coupled transport phenomena with high diffusivity ratios. The proposed method is also found to be very efficient in solving heat and mass transfer problems in systems involving a combination of clear and porous media. The results indicate the efficacy of the proposed method in handling coupled flow, heat and mass transport in systems where diffusion coefficients values vary over several orders of magnitude.

A multiscale approach for stable relaxation parameter values in lattice Boltzmann simulations of heat and mass transport in porous media