Numerical investigation of porous walls for a Mach 6.0 boundary layer using an immersed boundary method

Christoph Hader, Hermann F. Fasel

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

7 Scopus citations

Abstract

Temporal direct numerical simulations (TDNS) were carried out for a Mach 6.0 boundary layer on a 2-D porous wall. The porous wall was implemented with an immersed boundary scheme. For validation purposes results were compared with results obtained with an analytical porous wall model. A grid convergence study was conducted to confirm that the grid resolution was adequate. A parameter study revealed that the geometric dimensions for which the porous coating most effectively attenuates the growth of disturbances in the boundary layers. For the optimal parameter setting significant stabilization of the temporal growth of the instability waves is observed. The optimal cavity depth for different numbers of pores per disturbance wavelength was found to remain approximately the same. The present study showed that porous coatings can be modeled with an immersed boundary scheme.

Original languageEnglish (US)
Title of host publication41st AIAA Fluid Dynamics Conference and Exhibit
StatePublished - Dec 1 2011
Event41st AIAA Fluid Dynamics Conference and Exhibit 2011 - Honolulu, HI, United States
Duration: Jun 27 2011Jun 30 2011

Publication series

Name41st AIAA Fluid Dynamics Conference and Exhibit

Other

Other41st AIAA Fluid Dynamics Conference and Exhibit 2011
CountryUnited States
CityHonolulu, HI
Period6/27/116/30/11

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Energy Engineering and Power Technology
  • Aerospace Engineering
  • Mechanical Engineering

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    Hader, C., & Fasel, H. F. (2011). Numerical investigation of porous walls for a Mach 6.0 boundary layer using an immersed boundary method. In 41st AIAA Fluid Dynamics Conference and Exhibit (41st AIAA Fluid Dynamics Conference and Exhibit).