TY - JOUR
T1 - Ultra high speed investigation of gaseous jet injected by a single-hole injector and proposing of an analytical method for pressure loss prediction during transient injection
AU - Hajialimohammadi, Alizera
AU - Edgington-Mitchell, Daniel
AU - Honnery, Damon
AU - Montazerin, Nader
AU - Abdullah, Amir
AU - Mirsalim, Mostafa Agha
PY - 2016/11/15
Y1 - 2016/11/15
N2 - The objective of this study is to investigate the characteristics of a transient gaseous jet produced by a single-hole injector nozzle. High speed schlieren is used to image the jet development process and evaluate time-dependent characteristics of the jet. Both near and far fields have been investigated through two distinct optical configurations. Helium gas was injected at nozzle pressure ratios of 2, 3, 4 and 5 and the effects of nozzle pressure ratio on the jet axial and radial penetrations and tip velocity were investigated. An analytical model is proposed to calculate the pressure drop during transient injection using shock tube theory. Modification of existing predictions with this pressure drop model offered significantly better agreement with the experimental data.
AB - The objective of this study is to investigate the characteristics of a transient gaseous jet produced by a single-hole injector nozzle. High speed schlieren is used to image the jet development process and evaluate time-dependent characteristics of the jet. Both near and far fields have been investigated through two distinct optical configurations. Helium gas was injected at nozzle pressure ratios of 2, 3, 4 and 5 and the effects of nozzle pressure ratio on the jet axial and radial penetrations and tip velocity were investigated. An analytical model is proposed to calculate the pressure drop during transient injection using shock tube theory. Modification of existing predictions with this pressure drop model offered significantly better agreement with the experimental data.
KW - Gaseous injection
KW - Schlieren
KW - Image processing
KW - Direct injection
KW - Single-hole injector
UR - http://www.scopus.com/inward/record.url?scp=84978153911&partnerID=8YFLogxK
U2 - 10.1016/j.fuel.2016.06.112
DO - 10.1016/j.fuel.2016.06.112
M3 - Article
SN - 0016-2361
VL - 184
SP - 100
EP - 109
JO - Fuel
JF - Fuel
ER -