Effects of shape geometry in viscous streaming

Bhosale, Yashraj

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https://hdl.handle.net/2142/106498 Copy

Description

Title

Effects of shape geometry in viscous streaming

Author(s)

Bhosale, Yashraj

Issue Date

2019-12-11

Director of Research (if dissertation) or Advisor (if thesis)

Gazzola, Mattia

Department of Study

Mechanical Sci & Engineering

Discipline

Mechanical Engineering

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

M.S.

Degree Level

Thesis

Date of Ingest

2020-03-02T22:38:59Z

Keyword(s)

• viscous streaming
• flow topology

Abstract

Viscous streaming flows generated by objects of constant curvature (circular cylinders, infinite plates) have been well understood. Yet, characterization and understanding of such flows when multiple body length- scales are involved has not been looked into, in rigorous detail. We propose a simplified setting to understand and explore the effect of multiple body curvatures on streaming flows, analysing the system through the lens of bifurcation theory. Our setup consists of periodic, regular lattices of cylinders characterized by two distinct radii, so as to inject discrete curvatures into the system, which in turn affect the streaming field generated due to an oscillatory background flow. We demonstrate that our understanding based on this system can be then generalised to a variety of individual shapes presenting a spectrum of curvatures, explaining prior experimental and computational observations. Thus, this study illustrates a route towards the rational manipulation of viscous streaming flow topology, through regulated variation of object geometry.

Graduation Semester

2019-12

Type of Resource

text

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http://hdl.handle.net/2142/106498

Copyright and License Information

Copyright 2019 Yashraj Bhosale

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