Scale adaptive simulation of stalled naca 0012 airfoil using high order schemes

Purvic Patel, Yunchao Yang, Gecheng Zha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A Scale Adaptive Simulation (SAS) is implemented with the Spalart-Allmaras (SA) turbulence model to evaluate its capability for flows with massive separation. A subsonic flat plate case is validated and the results are compared with SA and other hybrid turbulence models. The Mean Stress Depletion (MSD) problem, aroused in the case of the Detached-Eddy Simulation (DES97), is not observed with the SAS turbulence model under ambiguous grid. Subsequently, NACA 0012 airfoil is investigated for post-stall regime and predicted aerodynamics performance is compared with the experimental, URANS and IDDES results. The predicted lift and drag coefficients using the SAS and IDDES agree well with the experiment, significantly more accurate than the results of URANS. Apart from these quantitative results, the turbulent flow structures obtained with hybrid turbulence models reveal more details of the small structures.

Original languageEnglish (US)
Title of host publicationAIAA Aviation 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-18
Number of pages18
ISBN (Print)9781624105890
DOIs
StatePublished - 2019
EventAIAA Aviation 2019 Forum - Dallas, United States
Duration: Jun 17 2019Jun 21 2019

Publication series

NameAIAA Aviation 2019 Forum

Conference

ConferenceAIAA Aviation 2019 Forum
Country/TerritoryUnited States
CityDallas
Period6/17/196/21/19

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Aerospace Engineering

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