NS-? model for fluid-fluid interaction problems at high Reynolds numbers<br>

AĞGÜL M., Labovsky A. E., Schwiebert K. J.

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, cilt.395, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 395
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.cma.2022.115052
  • Dergi Adı: COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Computer & Applied Sciences, INSPEC, MathSciNet, Metadex, zbMATH, Civil Engineering Abstracts
  • Anahtar Kelimeler: Fluid-fluid interaction, Turbulence modeling, Navier-Stokes equations, Large eddy simulation, DEFERRED CORRECTION METHOD
  • Hacettepe Üniversitesi Adresli: Evet

Özet

We consider a fluid-fluid interaction problem, where two flows are coupled through a nonlinear rigid lid condition, and one or both of these flows are at high Reynolds numbers. A method is proposed, that combines the NS-omega turbulence model with a partitioning method-so that the resulting model is efficiently decoupled, allows for the usage of preexisting solvers (e.g., air and water domain solvers), and is capable of resolving the flows at high Reynolds numbers. The model is shown to be unconditionally stable and have optimal convergence properties. The model also allows for the non-filtered velocity in the interface terms; it has been shown recently that filtering the velocity in the interface terms could corrupt the quality of the model's solution. To the best of the authors' knowledge, this is the first model with non-filtered velocity on the interface, that lends itself to full numerical analysis. (C) 2022 Elsevier B.V. All rights reserved.