Theory-based mesoscale to microscale coupling for wind energy applications

Published on Oct 1, 2021in Applied Mathematical Modelling3.633
· DOI :10.1016/J.APM.2021.05.020
Stefan Heinz18
Estimated H-index: 18
(UW: University of Wyoming)
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Abstract
Abstract null null The coupling of mesoscale and microscale simulation methods represents a significant challenge of wind energy research. Conventional approaches used to address this problem often combine Reynolds-averaged Navier-Stokes (RANS) and large eddy simulation (LES) equation elements, which has two significant disadvantages. First, Wyngaard’s Terra Incognita challenge cannot be addressed because there is no reflection of the amount of flow resolution in such equations. Second, (because of the lack of theoretical guidance) there is a relatively large number of influence factors that can affect such simulations. The study of implications of such options continues for decades, and (following the same approach) it is likely that this will go on for a long time. Substantial progress in this regard requires a novel simulation concept that provides strong theoretical guideline via solving Wyngaard’s Terra Incognita challenge. The paper shows that the latter can be accomplished by applying new simulation concepts developed for engineering flows to the problem considered. Essential advantages compared to existing mesoscale to microscale couplings are described.
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