国家自然科学基金(50806040)

作品数:5被引量:25H指数:4
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相关作者:郑新前张扬军郭宫达杨名洋诸葛伟林更多>>
相关机构:清华大学中国科学院更多>>
相关期刊:《航空动力学报》《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》《工程热物理学报》《Science China(Technological Sciences)》更多>>
相关主题:内燃机RATIOTURBOCHARGERINTERNALCOMBUSTION更多>>
相关领域:动力工程及工程热物理机械工程交通运输工程航空宇航科学技术更多>>
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A novel experimental method to evaluate the impact of volute's asymmetry on the performance of a high pressure ratio turbocharger compressor被引量:4
《Science China(Technological Sciences)》2012年第6期1695-1700,共6页LIN Yun ZHENG XinQian JIN Lei TAMAKI Hideaki KAWAKUBO Tomoki 
supported by the National Natural Science Foundation of China (Grant No. 50806040)
All components of a turbocharger compressor are axisymmetric except for the spiral-shaped,gas-collecting overhung volute.In this paper,a novel experimental method to evaluate the impact of the volute's asymmetry on ce...
关键词:high pressure-ratio TURBOCHARGER centrifugal compressor volute IC engine 
Prediction of thermal fatigue life of a turbine nozzle guide vane被引量:2
《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2011年第3期214-222,共9页Xin-qian ZHENG Tao DU Yang-jun ZHANG 
Project (No.50806040) supported by the National Natural Science Foundation of China
Thermal fatigue (TF) is one of the most important factors that influence turbine's life.This paper establishes a 3D solid-fluid coupling model for a steady temperature analysis of a high-pressure turbine nozzle at dif...
关键词:ENGINE Nozzle guide vane Thermal fatigue (TF) life Solid-fluid 
跨声速离心压气机机匣处理扩稳研究被引量:7
《工程热物理学报》2010年第12期2023-2026,共4页郑新前 张扬军 郭宫达 张俊跃 杨名洋 
国家自然科学基金资助项目(No.50806040)
高增压技术是高升功率车用内燃机的主要技术瓶颈之一,其核心难点在于高压比离心压气机内部复杂跨声速流动导致稳定运行范围窄,无法满足车用工况在高压比条件下对稳定运行工作范围的要求。为拓宽跨声速离心压气机的稳定工作范围,利用全...
关键词:涡轮增压 内燃机 压气机 机匣处理 流动控制 
Research and development on transonic compressor of high pressure ratio turbocharger for vehicle internal combustion engines被引量:7
《Science China(Technological Sciences)》2010年第7期1817-1823,共7页ZHENG XinQian, ZHANG YangJun & YANG MingYang State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China 
supported by the National Natural Science Foundation of China (Grant No. 50806040);Specialized Research Fund for the Doc-toral Program of Higher Education) (Grant No. 200800031075);supported by the fund from National Key Laboratory of Diesel Engine Turbocharging Technology
The pressure ratio required for a turbocharger centrifugal compressor increases with internal combustion engine power density. High pressure ratio causes a transonic flow field at the impeller inducer. Transonic flow ...
关键词:TURBOCHARGER INTERNAL COMBUSTION (IC) engine COMPRESSOR high pressure RATIO TRANSONIC 
叶尖间隙分布对内燃机增压压气机性能影响被引量:6
《航空动力学报》2010年第3期549-556,共8页郭宫达 张扬军 徐建中 郑新前 诸葛伟林 
国家自然科学基金(50806040)
采用三维CFD(计算流体动力学)方法,对两种相反叶尖间隙分布方式的无叶扩压器压气机级进行了详细流场分析,研究了叶尖间隙分布对跨声速离心压气机叶轮及扩压器性能的影响机理.结果表明,非均匀分布弦向间隙分布叶轮有较宽的稳定工作范围;...
关键词:叶尖间隙 内燃机 涡轮增压器 离心压气机 
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