Subharmonic resonance in a laminar wall jet

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Receptivity and stability of a two-dimensional laminar wall jet is considered. The wall jet and the disturbance source examined in a direct numerical simulation by S. Wernz and H. F. Fasel (AIAA Paper 96-0079) are chosen for the analysis. The disturbances are introduced by blowing and suction through a slot in the wall. The disturbances of two frequencies (28 and 56 Hz) are considered. Because two eigenmodes may be unstable in the wall-jet flow, both of them are taken into account for each frequency. Therefore, the linear receptivity problem is solved for two pairs of eigenmodes, and their development and interaction downstream from the source are analyzed. The analysis allows one to explain the behavior of the fundamental and subharmonic disturbances observed in the numerical simulation.

Original languageEnglish (US)
Pages (from-to)1769-1771
Number of pages3
JournalPhysics of Fluids
Volume10
Issue number7
StatePublished - Jul 1998
Externally publishedYes

Fingerprint

wall jets
disturbances
Direct numerical simulation
Blow molding
jet flow
blowing
suction
direct numerical simulation
slots
Computer simulation
simulation
interactions

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Condensed Matter Physics

Cite this

Subharmonic resonance in a laminar wall jet. / Tumin, Anatoli.

In: Physics of Fluids, Vol. 10, No. 7, 07.1998, p. 1769-1771.

Research output: Contribution to journalArticle

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