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Article

Strategy Analysis of Seamlessly Resolving Turbulent Flow Simulations

Department of Mathematics and Statistics, University of Wyoming, 1000 E. University Avenue, Laramie, WY 82071, USA
Aerospace 2025, 12(7), 597; https://doi.org/10.3390/aerospace12070597
Submission received: 29 May 2025 / Revised: 27 June 2025 / Accepted: 27 June 2025 / Published: 30 June 2025
(This article belongs to the Section Aeronautics)

Abstract

Modeling of wall-bounded turbulent flows, in particular the hybridization of the Reynolds-averaged Navier–Stokes (RANS) and large eddy simulation (LES) methods, has faced serious questions for decades. Specifically, there is continuous research of how usually applied methods such as detached eddy simulation (DES) and wall-modeled LES (WMLES) can be made more successful in regard to complex, high-Reynolds-number (Re) flow simulations. The simple question is how it is possible to enable reliable and cost-efficient predictions of high-Re wall-bounded turbulent flows in particular under conditions where data for validation are unavailable. This paper presents a strict analysis of strategies for the design of seamlessly resolving turbulent flow simulations for a wide class of turbulence models. The essential conclusions obtained are the following ones: First, by construction, usually applied methods like DES are incapable of systematically spanning the range from modeled to resolved flow simulations, which implies significant disadvantages. Second, a strict solution for this problem is given by novel continuous eddy simulation (CES) methods, which perform very well. Third, the design of a computational simplification of CES that still outperforms DES appears to be very promising.
Keywords: computational fluid dynamics; large eddy simulation (LES); Reynolds-averaged Navier-Stokes (RANS) methods; hybrid RANS-LES methods; strategies for resolving turbulent flow simulations computational fluid dynamics; large eddy simulation (LES); Reynolds-averaged Navier-Stokes (RANS) methods; hybrid RANS-LES methods; strategies for resolving turbulent flow simulations

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MDPI and ACS Style

Heinz, S. Strategy Analysis of Seamlessly Resolving Turbulent Flow Simulations. Aerospace 2025, 12, 597. https://doi.org/10.3390/aerospace12070597

AMA Style

Heinz S. Strategy Analysis of Seamlessly Resolving Turbulent Flow Simulations. Aerospace. 2025; 12(7):597. https://doi.org/10.3390/aerospace12070597

Chicago/Turabian Style

Heinz, Stefan. 2025. "Strategy Analysis of Seamlessly Resolving Turbulent Flow Simulations" Aerospace 12, no. 7: 597. https://doi.org/10.3390/aerospace12070597

APA Style

Heinz, S. (2025). Strategy Analysis of Seamlessly Resolving Turbulent Flow Simulations. Aerospace, 12(7), 597. https://doi.org/10.3390/aerospace12070597

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