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/

Zendy Plus

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

Zendy Tools

Zendy Open

A D2Q9 Hybrid Lattice Boltzmann Method (HLBM) is proposed for the simulationof both compressible subsonic and supersonic flows. This HLBM is an extensionof the model of Feng et al: [12], which has been found, via different testcases, to be unstable for supersonic regimes. The improvements consist of: (1)a new discretization of the lattice closure correction term making possible toproperly simulate supersonic flows, (2) a corrected viscous stress tensor thattakes into account polyatomic gases, and (3) a novel discretization of theviscous heat production term fitting with the regularized formalism. The resultis a hybrid method that resolves the mass and momentum equations with an LBMalgorithm, and resolves the entropy-based energy equation with a finite volumemethod. This approach fully recovers the physics of the Navier-Stokes-Fourierequations with the ideal gas equation of state, and is valid from subsonic tosupersonic regimes. It is then successfully assessed with both smooth flows andflows involving shocks. The proposed model is shown to be an efficient,accurate, and robust alternative to classic Navier-Stokes methods for thesimulation of compressible flows

Improved compressible Hybrid Lattice Boltzmann Method on standard lattice for subsonic and supersonic flows