eprintid: 1803
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/18/03
datestamp: 2023-11-09 15:49:58
lastmod: 2023-11-09 15:49:58
status_changed: 2023-11-09 15:41:23
type: article
metadata_visibility: show
creators_name: Al-Kayiem, H.H.
creators_name: Salih, T.W.
creators_name: Al-Ambari, A.S.
title: Performance prediction procedures of the supersonic spiked intakes
ispublished: pub
note: cited By 1
abstract: The supersonic flow approaching the intake of a supersonic aero engine must be brought to subsonic state before reaching the compressor face stage. The velocity reduction is combined with reduction in the total pressure of the flow which is not preferred by the designer of the supersonic gas turbine. In the present paper, analytical and two different numerical techniques were coupled to analyze the flow field in 2-D, compressible, supersonic spiked intake. The analyses were carried out at Mach number between 1.8 to 2.2 and spike angles of 12 and 20°. The flow field was subdivided into external part which was solved analytically and internal part which was solved numerically. The numerical analyses ware carried out under two assumptions; method I: non viscous flow and method II: viscous flow. The results are presented and compared based on the predicted values of the pressure recovery at the face of the compressor. The procedure was verified by comparing with previous experimental works. It was found that the pressure recovery is slightly influenced by the viscosity up to 2.14 Mach. The pressure recovery values predicted from the non viscous assumption were higher than the corresponding values obtained from the viscous solution. The viscosity contribution becomes more significant as the spike angle is increased from 12 to 20° where noticeable differences in the pressure recovery values were predicted. Accordingly, the diffusion analysis of compressible flow in such conditions assuming viscous, is essential. © 2011 Asian Network for Scientific Information.
date: 2011
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-82155191514&doi=10.3923%2fajsr.2011.224.235&partnerID=40&md5=18f51c24078718dfc571c0b5b395e3dd
id_number: 10.3923/ajsr.2011.224.235
full_text_status: none
publication: Asian Journal of Scientific Research
volume: 4
number: 3
pagerange: 224-235
refereed: TRUE
issn: 19921454
citation:   Al-Kayiem, H.H. and Salih, T.W. and Al-Ambari, A.S.  (2011) Performance prediction procedures of the supersonic spiked intakes.  Asian Journal of Scientific Research, 4 (3).  pp. 224-235.  ISSN 19921454