Absolute Instability of Interacting Planar Mixing Layers and Wakes

Abstract

This final report describes the Caltech part of the collaborative project with Universidade Federal Fluminense (PI: Alves) to identify the previously unobserved absolute instability of an interacting planar mixing layer and wake and to characterize the conditions for its occurrence. The Caltech tasks pertained to an experimental campaign that extended a previous undergraduate project from several years ago (Tian et al, 2012) which gave an inconclusive indication of this phenomenon (Quntanilha and Alves, 2018), specifically rebuilding and improving the experiment and designing the experimental diagnostics to match the expected frequency range for observation of instability.

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Document Details

Document Type
Technical Report
Publication Date
Apr 06, 2023
Accession Number
AD1231057

Entities

People

  • Beverley McKeon

Organizations

  • California Institute of Technology

Tags

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Research Science/Academic Research
  • Systems Analysis and Design