Experimental and numerical analysis of supersonic air ejector

Daotong Chong, Mengqi Hu, Weixiong Chen, Jinshi Wang, Jiping Liu and Junjie Yan

Applied Energy, 2014, vol. 130, issue C, 679-684

Abstract: The present paper performs experimental and numerical investigations on the global performance and internal flow of a supersonic air ejector. The effects of operation parameters and geometrical factor on the air ejector performance have been analyzed. The results show that: the static wall pressure and axisymmetric line static pressure remain constant in critical mode under different discharged pressures, but they both increase in sub-critical mode with the increase of the discharged pressure. The shock position of the mixed fluid moves upstream in critical mode. The second shock position disappears in sub-critical mode. The experimental and numerical results indicate that there exists an optimal nozzle exit position (NXP) corresponding to maximum entrainment ratio, but the critical value of discharged pressure is almost independent of NXP.

Keywords: Air ejector; Entrainment ratio; Shock; Static wall pressure (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (16)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0306261914001597
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:130:y:2014:i:c:p:679-684

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

DOI: 10.1016/j.apenergy.2014.02.023

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().