TY - JOUR
T1 - Ambient air entrainment into a transient hydrogen jet and its flame jet
AU - Tomita, Eiji
AU - Hamamoto, Yoshisuke
AU - Yoshiyama, Sadami
AU - Tsutsumi, Hiroyuki
AU - Watanabe, Toru
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1997
Y1 - 1997
N2 - The entrainment of ambient air into a transient hydrogen jet and its flame jet were investigated. The air mass entrained into the transient jet could be determined by analyzing the path lines of micro balloons in a laser light sheet using a controlled CCD camera system. The main results are as follows: (1) The spatial and temporal changes of the entrainment could be obtained in both the cold and the flame jets. (2) The rural air mass entrained into the flame jet is nearly equal to that in the cold jet. (3) The entrainment rate per unit area of the flame jet is smaller than that of the cold jet. (4) A transient jet is separated into two regions, that is, the side and front parts of the jet. The rate of air mass entrained from the front part of the jet decreases with time while that entrained into the side of the jet per unit area remains almost the same. (5) The air mass entrained into the jet can be explained by the momentum theory.
AB - The entrainment of ambient air into a transient hydrogen jet and its flame jet were investigated. The air mass entrained into the transient jet could be determined by analyzing the path lines of micro balloons in a laser light sheet using a controlled CCD camera system. The main results are as follows: (1) The spatial and temporal changes of the entrainment could be obtained in both the cold and the flame jets. (2) The rural air mass entrained into the flame jet is nearly equal to that in the cold jet. (3) The entrainment rate per unit area of the flame jet is smaller than that of the cold jet. (4) A transient jet is separated into two regions, that is, the side and front parts of the jet. The rate of air mass entrained from the front part of the jet decreases with time while that entrained into the side of the jet per unit area remains almost the same. (5) The air mass entrained into the jet can be explained by the momentum theory.
UR - http://www.scopus.com/inward/record.url?scp=0031142908&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031142908&partnerID=8YFLogxK
U2 - 10.1299/kikaib.63.1820
DO - 10.1299/kikaib.63.1820
M3 - Article
AN - SCOPUS:0031142908
SN - 0387-5016
VL - 63
SP - 1820
EP - 1826
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
IS - 609
ER -