UNSTEADINESS

作品数：32被引量：111H指数：6
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相关领域：理学更多>>
相关作者：赵志芳楼肃亮杨永宏张冬生更多>>
相关机构：解放军第117医院更多>>
相关期刊：《Science China(Technological Sciences)》《Theoretical & Applied Mechanics Letters》《Propulsion and Power Research》《Advances in Aerodynamics》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金更多>>
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Recent progress in conical shock wave/boundary layer interaction with spanwise pressure gradient
《Propulsion and Power Research》2024年第3期295-318,共24页Feng-Yuan Zuo Sergio Pirozzoli 
supported by the National Natural Science Foundation of China under project numbers 12002261.National Postdoctoral Program for Innovative Talents,China (No.BX20200267)。
A common denominator between conical-symmetry and conical shock interaction is the spanwise pressure gradient,which perform more non-uniformity and its interactionflow is more complicated than the spanwise-homogeneous...
关键词：Conical shock Boundary layer Separatedflows UNSTEADINESS Viscous-inviscid interactions 
Investigation of flow unsteadiness in a highly-loaded compressor cascade using a dynamic mode decomposition method被引量：3
《Chinese Journal of Aeronautics》2022年第5期275-290,共16页Guangyao AN Yanhui WU Jinhua LANG Zhiyang CHEN Xiaobing ZHOU 
supports of National Natural Science Foundation of China(Nos.51790512,52176045);the National Major Science and technology Project of China(No.J2017-Ⅱ-0010-0024);the Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University,China(No.CX201911)。
Unsteady flow in the hub endwall region has long been a hot topic in the turbomachinery community.However important it is to the performance of the whole engine,the coherent unsteady flow phenomena are still not well ...
关键词：CASCADE COMPRESSOR Dynamic Mode Decomposition(DMD) ENDWALL Unsteady flow Vortex breakdown 
The diagnosis of central vestibular disorders based on the complementary examination of the vestibulospinal reflex被引量：1
《Journal of Otology》2022年第1期1-4,共4页Stefani Maihoub Andras Molnar Laszl Tamas Agnes Szirmai 
Objectives:Stance and gait unsteadiness along with vertigo contribute to a central vestibular disorder.For objective analysis ultrasound-computer-craniocorpography(US-COMP-CCG)can be used.Aim of the study was to chara...
关键词：UNSTEADINESS Central vestibular disorder Vestibulospinal reflex Ultrasound-computer-craniocorpography 
Direct numerical simulation of impinging shock wave and turbulent boundary layer interaction over a wavy-wall被引量：5
《Chinese Journal of Aeronautics》2021年第5期350-363,共14页Fulin TONG Dong SUN Xinliang LI 
co-supported by the National Key Research and Development Program of China(Nos.2019YFA0405300 and 2016YFA0401200);the National Natural Science Foundation of China(Nos.11972356 and 91852203);LHD Youth Innovation Fund(No.LHD2019CX04);National Numerical Wind Tunnel Project。
The interaction of an impinging oblique shock wave with an angle of 30°and a supersonic turbulent boundary layer at Ma_(∞)=2.9 and Re_(θ)=2400 over a wavy-wall is investigated through direct numerical simulation an...
关键词：Direct numerical simulation Low-frequency unsteadiness Shock waves Turbulent boundary layer Wavy-wall 
Start-up Characteristics of Linear Compressors in a Refrigeration System被引量：1
《Journal of Thermal Science》2021年第2期598-609,共12页ZOU Huiming LI Xuan TANG Mingsheng TIAN Changqing 
We would like to thank the support from the National Natural Science Foundation of China(No.51576203 and No.51976229);this study is also supported by CAS Key Laboratory of Cryogenics,TIPC(No.CRYOQN201908);Dr.Tang M.S.is supported by Youth Innovation Promotion Association,CAS(No.2018032).
This work investigates the start-up characteristics of linear compressors in a refrigeration system through experiment and simulation.Experiments are carried out by a refrigeration test system with a linear compressor...
关键词：linear compressor START-UP dynamic characteristics UNSTEADINESS 
Study of Unforced Unsteadiness in Centrifugal Pump at Partial Flow Rates被引量：5
《Journal of Thermal Science》2021年第1期88-99,共12页YANG Jun XIE Tian LIU Xiaohua SI Qiaorui LIU Jun 
supported by the National Natural Science Foundation of China(Grant No.51976125);Open Research Subject of Key Laboratory of Fluid and Power Machinery(Xihua University),Ministry of Education(Grant number zj2015-024);Natural Science Fund of Shanghai(Grant No.19ZR1425900)。
In order to explore the unforced unsteadiness of centrifugal pumps,a 2-D frequency domain imaging display technology was used to study the development of these unsteady flow structures at partial flow conditions.The r...
关键词：centrifugal pumps partial flow conditions pressure pulsations unforced unsteadiness 2-D frequency domain visualization method 
Numerical simulation of compression corner flows at Mach number 9被引量：4
《Chinese Journal of Aeronautics》2020年第6期1611-1624,共14页Amjad APASHA Khalid AJUHANY 
financially supported by the Deanship of Scientific Research(DSR),King Abdulaziz University,Jeddah,under grant No.DF-043-135-1441。
A hypersonic vehicle encounters a wide range of conditions during its complete flight regime.These flight conditions may vary from low to high Mach numbers with varying angles of attack.The near-wall viscous dissipati...
关键词：Boundary layer Expansion fan Heat transfer Hypersonic flows Separation length Shock-unsteadiness model Shock wave Turbulence model Turbulent Prandtl number 
Investigation on reversible pump turbine flow structures and associated pressure field characteristics under different guide vane openings被引量：5
《Science China(Technological Sciences)》2019年第11期2052-2074,共23页BINAMA Maxime SU WenTao CAI WeiHua LI FengChen WEI XianZhu MUHIRWA Alex GONG RuZhi WEKESA David W 
supported by the National Natural Science Foundation of China(Grant No.51606050);Chinese Postdoctoral Science Foundation(Grant No.2016M591527);Heilongjiang Postdoctoral Fund(Grant No.LBH-Z16057);Natural Science Foundation of Heilongjiang Province(Grant No.E2017038);the Fundamental Research Funds for the Central Universities(Grant No.HIT.NSRIF.2019062)
The use of reversible pump turbines(RPT) within pumped storage power plants goes with prolonged periods of off-design operating conditions, which leads to the onset of operating mode-dependent instabilities. In order ...
关键词：REVERSIBLE PUMP-TURBINE flow UNSTEADINESS pressure PULSATION guide VANE OPENING numerical simulation 
Analysis of Unstarted Hypersonic Flow Unsteadiness Based on Schlieren Image Processing被引量：1
《Transactions of Nanjing University of Aeronautics and Astronautics》2019年第5期856-867,共12页WANG Chengpeng WANG Wenshuo XUE Longsheng XU Pei YANG Jinfu 
supported by National Natural Science Foundation of China (Nos. 51776096 and 51476076);a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
The unstarted flow field in a hypersonic inlet model at a design point of Ma 6 is studied experimentally.The time-resolved spatial flow characteristics of the separation shock oscillation,which is induced by the unsta...
关键词：shock-detection system HYPERSONIC INLET FLOW unstarted FLOW 
Unsteadiness control of laminar junction flows on pressure fluctuations
《Applied Mathematics and Mechanics(English Edition)》2019年第3期373-380,共8页Jianhua LIU Shucheng ZHAI E.KUDASHEV Fangwen HONG Kai YAN 
Project supported by the National Natural Science Foundation of China(Nos.11102188 and 91852101)
Smoke-wire flow visualization is conducted carefully in a laminar junction to explore the physical behavior of laminar junction flows. The two-dimensional(2 D)velocity fields in the 30?plane of a laminar junction flow...
关键词：JUNCTION FLOW HORSESHOE vortex pressure FLUCTUATION FLOW visualization 
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