TY - JOUR
T1 - Research on non-dimensional characteristics of centrifugal compressor under altitude environment
AU - Zhang, Hong
AU - Wu, Gang
AU - Wei, Ming Shan
AU - Zhang, Hang
N1 - Publisher Copyright:
© 2015, China Ordnance Society. All right reserved.
PY - 2015/11/1
Y1 - 2015/11/1
N2 - A vehicular diesel turbocharger working in altitude environment is studied. Based on the theory analysis of non-dimensional characteristics of centrifugal compressor, the effects of plateau conditions and low Reynolds number on compressor characterisitics are investigated using numerical simulation method. The performance of compressor is analyzed with the use of non-dimensional flow rate and non-dimensional speed by changing compressor inlet parameters. The influences of the changes in inlet temperature and pressure on the equivalent characteristics of compressor are discussed, and the change rule of compressor non-dimensional characteristics under altitude environment was obtained. The results show that the reduction in compressor inlet pressure leads to low Reynolds number on plateau to make the change of compressor internal flow, which is the main reason to reduce the comprossor performance.
AB - A vehicular diesel turbocharger working in altitude environment is studied. Based on the theory analysis of non-dimensional characteristics of centrifugal compressor, the effects of plateau conditions and low Reynolds number on compressor characterisitics are investigated using numerical simulation method. The performance of compressor is analyzed with the use of non-dimensional flow rate and non-dimensional speed by changing compressor inlet parameters. The influences of the changes in inlet temperature and pressure on the equivalent characteristics of compressor are discussed, and the change rule of compressor non-dimensional characteristics under altitude environment was obtained. The results show that the reduction in compressor inlet pressure leads to low Reynolds number on plateau to make the change of compressor internal flow, which is the main reason to reduce the comprossor performance.
KW - Altitude environment
KW - Centrifugal compressor
KW - Non-dimensional characteristics
KW - Power machinery engineering
UR - http://www.scopus.com/inward/record.url?scp=84954552561&partnerID=8YFLogxK
U2 - 10.3969/j.issn.1000-1093.2015.11.003
DO - 10.3969/j.issn.1000-1093.2015.11.003
M3 - Article
AN - SCOPUS:84954552561
SN - 1000-1093
VL - 36
SP - 2032
EP - 2037
JO - Binggong Xuebao/Acta Armamentarii
JF - Binggong Xuebao/Acta Armamentarii
IS - 11
ER -