The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Mach Number on Outlet Plane of a Straight Micro-Tube

På svenska

Author

  • Y. Asako
  • D. Kawashima
  • Toru Yamada
  • C. Hong

Summary, in English

The Mach number and pressure on the outlet plane of a straight micro-tube were investigated numerically for both laminar and turbulent flow cases. The numerical methodology is based on the Arbitrary-Lagrangian-Eulerian (ALE) method. The LB1 turbulence model was used for the turbulent flow case. The compressible momentum and energy equations with the assumption of the ideal gas were solved. The computational domain is extended to the downstream region from the micro-tube outlet. The back pressure was given to the outside of the downstream region. The computations were performed for a tube whose diameter ranges from 50 to 500 gm. The average Mach number on the outlet plane of the fully under-expanded flow depends on the tube diameter and ranges from 1.16 to 1.25. The flow characteristics of the under-expanded gas flow in a straight micro-tube were revealed.

Department/s

Publishing year

2014

Language

English

Pages

07-020

Publication/Series

Proceedings of the ASME 2013 International Mechanical Engineering Congress and Exposition. Volume 7A: Fluids Engineering Systems and Technologies

Volume

7A

Document type

Conference paper

Publisher

American Society Of Mechanical Engineers (ASME)

Topic

  • Fluid Mechanics and Acoustics

Conference name

ASME International Mechanical Engineering Congress and Exposition, 2013

Conference date

2013-11-15 - 2013-11-21

Conference place

San Diego, CA, United States

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-0-7918-5631-4