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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Large-eddy simulation of incompressible turbulent flow has been extensivelyinvestigated; hence, a variety of models suited for different numerical schemeshave been developed. In the case of compressible flow, the modeling is morechallenging due to the numerous terms that arise in the filtered Navier-Stokesequations. Recently, modal explicit filtering was implemented in thediscontinuous spectral element method (DSEM) to mimic the effects ofsub-filtered scales for compressible flows. The method is computationallyinexpensive since it is implemented in the DSEM code using a well-establishedmath library. It has been successfully applied to simulations of compressibledecaying isotropic turbulence and turbulent channel flow. In this study,channel flows with three different friction Reynolds numbers are simulatedusing explicit modal filtering in DSEM to assess the performance of the newmethod by comparing turbulent statistics and friction Reynolds numbers to thosefrom DNS. The model predicts the friction Reynolds number with a maximum of2.16% error with respect to DNS. Although the model generates promising resultsfor the average velocity profile compared to DNS, it requires adjustment offilter strength and frequency to predict rms statistics accurately.

Application of Modal Filtering in Discontinuous Spectral Element Method for Simulation of Compressible Channel Flow at Different Reynolds Numbers