A grad-div stabilized penalty projection algorithm for fluid-fluid interaction

AĞGÜL M.

APPLIED MATHEMATICS AND COMPUTATION, cilt.414, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 414
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.amc.2021.126670
  • Dergi Adı: APPLIED MATHEMATICS AND COMPUTATION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Applied Science & Technology Source, Compendex, Computer & Applied Sciences, INSPEC, Public Affairs Index, zbMATH, Civil Engineering Abstracts
  • Anahtar Kelimeler: Fluid-fluid interaction, Penalty projection, Grad-div stabilization, Stable decoupling, Geometric averaging
  • Hacettepe Üniversitesi Adresli: Evet

Özet

The penalty projection algorithm (PP), which decouples pressure from the momentum equation of incompressible Navier-Stokes Equation (NSE), is among the most conventional approaches to simulate fluid flows. In a fluid-fluid decoupling setting, however, PP has never been employed but offers the potential for being one of the most typical candidates to compute two NSE's in each subdomain. Although pressure decoupling weakens the divergence constraint, the proposed algorithm operates with a well-known grad-div stabilization technique to retrieve this property. Theoretical and computational findings demonstrate how the proposed grad-div stabilized PP method settles concerns and outperforms when implemented with fluid-fluid decoupling. (c) 2021 Elsevier Inc. All rights reserved.