[潜艇流场与水下排气相互作用对柴油机性能影响的理论研究]武祥洪

【潜艇流场与水下排气相互作用对柴油机性能影响的理论研究】武祥洪.pdfInfluence ofInteractionbetween Submarine Fairwater FlowField and its Subwater Exhaust on the Performance of Diesel Engine by Hong Xiangwu Supervisedby ProfessorsLiuYongchangand DuanYuancai ADissertation Submitted to theAcademicDegreeCommitteeof Huazhong University of Science and Technology for theDe华中理工大学博士学位论文 了水下排气系统排气阻力的影响因素,评估了新型水下排气系统的降压效益,试验结 果表明,负压区鱼鳃形排气系统与原035潜艇的鸭嘴形排气系统相比,能够明显地 降低柴油机排气背压,若排气口以单排方式布置,且潜艇以常规速度(8节)航行,效 果尤为显著,排气背压可降低约1500mmH2O(即0MPa)presented, which enlarges the application scope of the experimental data.Based on theprocessingofexperimentaldata,butalsotheanalysisofperformanceunderthe snorkel condition,hasbeendeveloped.In.considerationofthecrossflowintheenvircnment,thebubbleslipvelocity andthecontributionof theturbulencemomentu
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