Application of the dual-mesh hybrid RANS-LES method to the flow in a cylindrical annuli

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In this work, the flow inside a buoyant cylindrical annuli is investigated using the dual-mesh hybrid RANS-LES approach. This flow is driven by the temperature difference between the inner and outer cylinders. In the dual-mesh approach, an unsteady RANS and an underresolved LES are run simultaneously on two different grids. At every location, the less accurate simulation is corrected towards the more accurate one. A comparison of the dual-mesh results with the results of the standalone simulations is presented to show that the hybrid approach can yield results that are more accurate than the results of the standalone RANS and LES simulations.

Bibliographical metadata

Original languageEnglish
Title of host publicationProceedings of ICAPP 2021
Place of PublicationAbu Dhabi, UAE
PublisherNo publisher name
Publication statusPublished - Oct 2021
Event2021 International Congress on Advances in Nuclear Power Plants - Abu Dhabi, United Arab Emirates
Event duration: 16 Oct 202120 Oct 2021


Conference2021 International Congress on Advances in Nuclear Power Plants
Abbreviated titleICAPP 2021
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Internet address