@techreport{oai:jaxa.repo.nii.ac.jp:00044949,
 author = {八柳, 信之 and YATSUYANAGI, Nobuyuki},
 month = {Jan},
 note = {The concentric-tube injector element has been used extensively in liquid-gas injectors, such as liquid oxygen-hydrogen rocket injectors. To predict the combustion performance and heat flux distribution along a combustion chamber with a coaxial injector, a good understanding of the spray flow field as it concerns the atomization rate of the liquid jet by the high velocity gas flow and the mixing process of liquid droplets with the gas flow, is of critical importance. In this report the spray flow field formed by flush-face concentric-tube injector elements was extensively investigated by non-reactive cold liquid-gas flow test. And also an analytical model was derived to predict the spray flow field, including the local atomization rate of the liquid jet, the gas-phase velocity decay, liquid mass flux dispersion and the local liquid-droplets to gas mixing efficiencies. By this study it was shown that the ratio of the half-width of the liquid phase mass flux to that of the gas phase velocity is the critical factor in controlling the mixing efficiencies of the spray flow field; in addition, this critical factor is related to the ratio of the gas to liquid injection velocity., 資料番号: NALTR0692000, レポート番号: NAL TR-692},
 title = {An Experimental and Analytical Study on Spray Flow Field by Liquid/Gas Coaxial Injector Elements(1)},
 year = {1982}
}