Mach Number on Outlet Plane of a Straight Micro-Tube

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

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

Sammanfattning

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.
Originalspråkengelska
Titel på värdpublikationProceedings of the ASME 2013 International Mechanical Engineering Congress and Exposition. Volume 7A: Fluids Engineering Systems and Technologies
FörlagAmerican Society Of Mechanical Engineers (ASME)
SidorV07AT08A020
Volym7A
ISBN (tryckt)978-0-7918-5631-4
DOI
StatusPublished - 2014
EvenemangASME International Mechanical Engineering Congress and Exposition, 2013 - San Diego, CA, USA
Varaktighet: 2013 nov. 152013 nov. 21

Publikationsserier

Namn
Volym7A

Konferens

KonferensASME International Mechanical Engineering Congress and Exposition, 2013
Förkortad titelIMECE2013
Land/TerritoriumUSA
OrtSan Diego, CA
Period2013/11/152013/11/21

Ämnesklassifikation (UKÄ)

  • Strömningsmekanik och akustik

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