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

Modeling the effect of complex terrain on high Reynolds number flows isimportant to improve our understanding of flow dynamics in wind farms and thedispersion of pollen and pollutants in hilly or mountainous terrain as well asthe flow in urban areas. Unfortunately, simulating high Reynolds number flowsover complex terrain is still a big challenge. Therefore, we present asimplified version of the wall modeled immersed boundary method by Chester etal. (J. Comput. Phys. 2007; 225: 427-448). By preventing the extrapolation anditeration steps in the original method, the proposed approach is much easier toimplement and more computationally efficient. Furthermore, the proposed methodonly requires information that is available to each processor and thus is muchmore efficient for simulations performed on a large number of cores. These arecrucial considerations for algorithms that are deployed on modernsupercomputers and will allow much higher grid resolutions to be considered. Wevalidate our method against wind tunnel measurements for turbulent flows overwall-mounted cubes, a two dimensional ridge, and a three-dimensional hill. Wefind very good agreement between the simulation results and the measurementdata, which shows this method is suitable to model high Reynolds number flowsover complex terrain.

Wall modeled immersed boundary method for high Reynolds number flow over complex terrain