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Computational Investigation on the Performance of Pulse Control Variable Nozzle Turbine
Pages: 289-292
Year: Issue:  3
Journal: Transactions of Beijing Institute of Technology

Abstract: 为了更有效地利用发动机排气脉冲波的能量,提出了一种新型脉动调节式可变喷嘴涡轮(VNT).以JK90S可变喷嘴涡轮为研究对象,利用叶轮机械CFD软件NUMECA,对常规VNT和脉动调节式VNT进行了数值计算研究.计算结果表明,与常规VNT相比,脉动调节式VNT在脉冲波能量利用方面具有明显优势,在相同的工况条件下,脉动调节式VNT的实际功率和膨胀比与常规VNT相比分别增加了36.8%和24.8%.
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