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Research Status and Development of the Bowed-Twisted Blade for Turbomachines

Wang Zhongqi,Zheng Yan

Strategic Study of CAE 2000, Volume 2, Issue 6,   Pages 40-48

Abstract:

The bowed-twisted blades have been widely used in the developed countries in the 1990s, such as the USA and UK. In China, this new type blades are also successfully applied to the steam turbines, and the application of these blades to gas turbines of air-engines has had a good beginning. The effectiveness of applying the bowed-twisted blades to turbines demonstrated by the tunnel and static experiments is discussed, and the mechanism of reducing the radial-and cross-secondary flow losses by using the bowed-twisted blades is analyzed in this paper. The advances in research on compressor bowed blades and key problems in this research are considered shortly. Based on design experiences, several principles for designing stages with bowed-twisted blades are summarized in the end of this paper.

Keywords： bowed-twisted blade     secondary flow     cascade aerodynamics    

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Development of research on aerodynamics of high-speed rails in China

Tian Hongqi

Strategic Study of CAE 2015, Volume 17, Issue 4,   Pages 30-29

Abstract: summarizes start， growth， accumulation， development，improvement， and leadership of the research on aerodynamicsof high-speed rails in China， which focuses on train aerodynamics， vehicle-track-bridge-tunnel couplingaerodynamics， vehicle-wind-sand-rain-snow environmental aerodynamics， pantograph-catenary aerodynamicand body aerodynamics.The paper introduces a series of experimental platforms for testing aerodynamics of high-speed rails

Keywords： rail aerodynamics； high-speed rails； experimental platforms； research development； train aerodynamics； train/tunnel coupling aerodynamics； train/wind coupling aerodynamics； pantograph-catenary aerodynamics； human aerodynamics    

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Fuzzy cascade control based on control’s history for superheated temperature

WANG Guangjun, LI Gang, SHEN Shuguang

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 285-289 doi: 10.1007/s11708-007-0040-8

Abstract: To address the characteristics of the large delay and uncertainty of superheated temperature, a new cascade
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Integrated energy systems based on cascade utilization of energy

JIN Hongguang, GAO Lin, HAN Wei, LI Bingyu, FENG Zhibing

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 16-31 doi: 10.1007/s11708-007-0003-0

Abstract: Furthermore, the principle of cascade utilization of both chemical and physical energy in energy systemsCompared with conventional energy systems that do not consider cascade utilization of chemical energyintegration features of these two systems have been revealed, and the important role that the principle of cascade
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Pelagic-benthic coupling of the microbial food web modifies nutrient cycles along a cascade-dammed river

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1484-5

Abstract:

• Structure of multi-trophic microbial groups were analyzed using DNA metabarcoding.

Keywords： Reservoir     Multi-trophic     Beta diversity     Predator-prey     Nutrient accumulation    

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Performance improvement of a pulse tube cryocooler with a single compressor through cascade utilization

Xuming LIU, Xiafan XU, Biao YANG, Xiaotong XI, Liubiao CHEN, Junjie WANG, Yuan ZHOU

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 345-357 doi: 10.1007/s11708-020-0708-x

Abstract: An active thermal insulation method of cascade utilization of the cold energy of the system was proposed

Keywords： radiation heat leakage     active thermal insulation     cascade utilization     cold energy     performance improvement    

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Innovation and Practice of High-Quality Navigation of the Three Gorges-Gezhouba Cascade Hub in 20 Years

Qi Junlin, Chen Dongyuan, Li Ran

Strategic Study of CAE 2023, Volume 25, Issue 1,   Pages 155-166 doi: 10.15302/J-SSCAE-2023.07.006

Abstract:

As the navigation design capacity of the Three Gorges‒Gezhouba cascadesystem and its engineering application for the high-quality navigation of the Three Gorges‒Gezhouba cascadeThe study reviews the research status of cascade hubs in China and abroad and explores the major factorsThe innovative development and practice of the Three Gorges‒Gezhouba cascade hub over the past 20key technical reference for the high-quality navigation construction of large-scale inland river cascade

Keywords： Three Gorges project     cascade hub     navigation organization     intelligent navigation     environmental-friendly    

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performance influenced by circumferentially pre-swirling coming flow on the crossover and de-swirling cascade

WANG Qikun, CHEN Kangmin

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 435-440 doi: 10.1007/s11708-007-0063-5

Abstract: Numerical investigation is implemented on aerodynamic performance inside the crossover and de-swirling cascade

Keywords： aerodynamic     investigation     centrifugal     de-swirling     circumferent    

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The development of aerodynamics & configurationtechnology for large aircraft

Zhang Yanzhong

Strategic Study of CAE 2009, Volume 11, Issue 5,   Pages 4-17

Abstract:

The paper introduced the development of aerodynamics & configurationtechnology for large aircraft.The technique of fuselage and the advanced aerodynamics configurationThe impact of aerodynamics & configuration technology on safety, economical, comfortable and environmentalcharacters for large aircraft was analyzed.The proposal for enhancing the research of aerodynamics in

Keywords： large aircraft     aerodynamics     super critical foil     winglet     laminar flow technique     BWB     CFD     wind tunnel    

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The Statics, Dynamics, and Aerodynamics of Long-Span Bridges

Yeong-Bin Yang, Yaojun Ge

Engineering 2017, Volume 3, Issue 6, doi: 10.1016/j.eng.2017.12.005

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Improvement of aerodynamic stability of suspension bridges with H-shaped simplified stiffening girder

Hiroshi KATSUCHI,Hitoshi YAMADA,Mayuko NISHIO,Yoko OKAZAKI

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 93-102 doi: 10.1007/s11709-015-0311-0

Abstract: Wind-tunnel study on the improvement of aerodynamic stability of simplified suspension-bridge girder structures was conducted with using a 1/40-scaled section model. Objective of the study is the development of an economically superior suspension bridge with 500–1,000 m center span length. The wind-tunnel test showed that an edge-girder type cross section exhibited large amplitude torsional vortex-induced vibration as well as torsional flutter at a low wind speed. Accordingly, aerodynamic countermeasures of open grating deck and triangular faring, and structural countermeasures of center stay, diagonal bracing and mass increase were tried to improve the aerodynamic stability. Finally, feasibility of the best combination to a full-scale bridge was examined by structural analysis.

Keywords： suspension bridge     aerodynamics     simplified girder     wind-tunnel test    

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Mean wind load induced incompatibility in nonlinear aeroelastic simulations of bridge spans

Zhitian ZHANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 605-617 doi: 10.1007/s11709-018-0499-x

Abstract: Mean wind response induced incompatibility and nonlinearity in bridge aerodynamics is discussed, where

Keywords： bridge     aerodynamics     nonlinear     aeroelastic model     Pseudo-steady     mean wind loads    

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Numerical Computational Aerodynamics Coefficient for Eje ction Seat

Yu Jia,Lin Guiping

Strategic Study of CAE 2007, Volume 9, Issue 6,   Pages 53-57

Abstract:

  The traditional method for obtaining aerodynamics coefficientTo research the feasibility of the application of computational aerodynamics coefficient for ejectionseat on general CFD software,  aerodynamics coefficient of ejection seat was computed using general

Keywords： ejection seat     escape system     computational fluid dynamics     aerodynamic coefficient    

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A New Subdiscipline of Contemporary Optics—Aero-optics

Yin Xingliang

Strategic Study of CAE 2005, Volume 7, Issue 12,   Pages 1-6

Abstract:

Based on developing process of aero-optics, the background of the subject is introduced. The definition, intension, research object, research methods of the subject are proposed. The research contents are described, which include mechanism, calibration methods, calibration tests for aero-optic effects and optic window of the hypersonic aircraft. The theoretical research, engineering modeling, testing principle and testing methods in China are described in detail. Some representative results are given. At last, the application prospects and research tendency of the subject are suggested.

Keywords： aerodynamics     turbulent flows     optics     aero-optics    

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Dvelopment of Aeronautics and Astronautics With Mechanics

Chen Shilu

Strategic Study of CAE 2003, Volume 5, Issue 3,   Pages 25-26

Abstract: branches of interconnected sciences in mechanics, describes the relations of flight mechanics with aerodynamics

Keywords： aerodynamics     structure mechanics     general mechanics     automatic control     flight mechanics     flight dynamics    

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Title Author Date Type Operation

Research Status and Development of the Bowed-Twisted Blade for Turbomachines

Wang Zhongqi,Zheng Yan

Journal Article

Development of research on aerodynamics of high-speed rails in China

Tian Hongqi

Journal Article

Fuzzy cascade control based on control’s history for superheated temperature

WANG Guangjun, LI Gang, SHEN Shuguang

Journal Article

Integrated energy systems based on cascade utilization of energy

JIN Hongguang, GAO Lin, HAN Wei, LI Bingyu, FENG Zhibing

Journal Article

Pelagic-benthic coupling of the microbial food web modifies nutrient cycles along a cascade-dammed river

Journal Article

Performance improvement of a pulse tube cryocooler with a single compressor through cascade utilization

Xuming LIU, Xiafan XU, Biao YANG, Xiaotong XI, Liubiao CHEN, Junjie WANG, Yuan ZHOU

Journal Article

Innovation and Practice of High-Quality Navigation of the Three Gorges-Gezhouba Cascade Hub in 20 Years

Qi Junlin, Chen Dongyuan, Li Ran

Journal Article

performance influenced by circumferentially pre-swirling coming flow on the crossover and de-swirling cascade

WANG Qikun, CHEN Kangmin

Journal Article

The development of aerodynamics & configurationtechnology for large aircraft

Zhang Yanzhong

Journal Article

The Statics, Dynamics, and Aerodynamics of Long-Span Bridges

Yeong-Bin Yang, Yaojun Ge

Journal Article

Improvement of aerodynamic stability of suspension bridges with H-shaped simplified stiffening girder

Hiroshi KATSUCHI,Hitoshi YAMADA,Mayuko NISHIO,Yoko OKAZAKI

Journal Article

Mean wind load induced incompatibility in nonlinear aeroelastic simulations of bridge spans

Zhitian ZHANG

Journal Article

Numerical Computational Aerodynamics Coefficient for Eje ction Seat

Yu Jia,Lin Guiping

Journal Article

A New Subdiscipline of Contemporary Optics—Aero-optics

Yin Xingliang

Journal Article

Dvelopment of Aeronautics and Astronautics With Mechanics

Chen Shilu

Journal Article