Pressure recovery characteristics of diverging mixing tubes for ejector-jets

Eijiro Kitamura, Sadatake Tomioka, Noboru Sakuranaka, Syuichi Watanabe, Goro Masuya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Pressure recovery characteristics of diverging mixing tubes were investigated. The total pressure at the exit of the diverging mixing tubes decreased when the diverging angles increased. More than 50% of the total pressure loss was observed in our experimental results. The flow fields in the diverging mixing tubes were investigated in numerical simulations. It was found that energy distributions in the diverging mixing tube agreed with those in the constant-area tube with in 1 kJ. The transformation of the energy with the increase of the cross-sectional area was controlled in the diverging tubes. Based on this numerical result, a one-dimensional model to predict the total pressure loss was proposed. The analytical results obtained by the one-dimensional model were compared with the experimental and numerical results. Good agreements within 15% with the experimental results were obtained.

Original languageEnglish
Title of host publicationA Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference
Pages715-725
Number of pages11
Publication statusPublished - 2006 Dec 1
Event14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference - Canberra, Australia
Duration: 2006 Nov 62006 Nov 9

Publication series

NameA Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonic Systems and Technologies Conference
Volume1

Other

Other14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference
Country/TerritoryAustralia
CityCanberra
Period06/11/606/11/9

ASJC Scopus subject areas

  • Engineering(all)

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