Numerical investigation of supersonic axisymmetric wakes with active and passive flow control

Jayahar Sivasubramanian, Hermann F. Fasel

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

2 Scopus citations

Abstract

The base drag of axisymmetric bodies at supersonic speeds make a substantial contribution to the total drag. We employed computational fluid dynamics for investigating transitional supersonic axisymmetric wakes at a freestream Mach number of M = 2.46. The objective of this research is to study how various active and passive flow control techniques affect the base drag and to understand how the mean flow properties are altered by these techniques. Simulations were carried out for a Reynolds number based on diameter of Re D = 100, 000. To lower the grid resolution requirements and save computer time we employed a hybrid turbulence model, the flow simulation methodology. We investigated flow control mechanisms that alter the near wake by introducing axisymmetric and longitudinal perturbations in the approach boundary layer. We also investigated passive control using steady bleed jets.

Original languageEnglish (US)
Title of host publication4th AIAA Flow Control Conference
StatePublished - Dec 1 2008
Event4th AIAA Flow Control Conference - Seattle, WA, United States
Duration: Jun 23 2008Jun 26 2008

Publication series

Name4th AIAA Flow Control Conference

Other

Other4th AIAA Flow Control Conference
CountryUnited States
CitySeattle, WA
Period6/23/086/26/08

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Aerospace Engineering
  • Control and Systems Engineering

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    Sivasubramanian, J., & Fasel, H. F. (2008). Numerical investigation of supersonic axisymmetric wakes with active and passive flow control. In 4th AIAA Flow Control Conference [2008-3999] (4th AIAA Flow Control Conference).