@techreport{oai:jaxa.repo.nii.ac.jp:00043851, author = {八柳, 信之 and YATSUYANAGI, Nobuyuki}, month = {Dec}, note = {Cyclic or intermittent variations in the flow of atomized propellants in rocket combustion chamber are of interest because of their possible effects on the combustion instability.Atomization by impingement of two liquid jets is a widely used method,but this atomization has been demonstrated to be intermittent in nature.Marcus F.Heidmann investigated the effects of injection velocities,jet diameters,impingement angles,jet length and injectant properties on the spray formation frequency,and found that the frequency of spray formation was nearly directly proportional to the injection velocity.However,environmental pressure also may affect the spray formation frequency.In this study,the effects of the environmental pressures and injection velocities on spray formation frequency were investigated by using high speed motion photography.It was found that the spray formation frequency might be correlated with the Weber number based on length of a stable liquid sheet formed by impinged jets and the stable length of the sheet was a function of the injection velocity., 資料番号: NALTM0268000, レポート番号: NAL TM-268}, title = {2噴流衝突型噴射器の微粒化に及ぼす周囲圧力の影響}, year = {1974} }