The Experts below are selected from a list of 270 Experts worldwide ranked by ideXlab platform
Zhou Mochun - One of the best experts on this subject based on the ideXlab platform.
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Effects of Leaning and Curving of Blades With High Turning Angles on the Aerodynamic Characteristics of Turbine Rectangular Cascades
Journal of Turbomachinery, 1994Co-Authors: Han Wan-jin, Wang Zhong-qi, Tan Chunqing, Shi Hong, Zhou MochunAbstract:To understand the effects of the origination and development of centralized vortices on the aerodynamic characteristics of turbine rectangular cascades with high turning Angles, experiments with five-hole microspherical probes, accompanied by color helium bubble flow displays, were carried out. The measurement planes are arranged as three before, six in, and one after the cascade. The experiments reveal that the origination and development of horseshoe vortices and passage vortices as well as the interaction of the latter almost dominate the whole flow field of traditional linear cascades. Lean linear cascades favor the horseshoe vortices and passage vortices in the acute Angle zone, and impede those in the Obtuse Angle zone. So it is a logical result to adopt the negatively curved blades, whose pressure surfaces and both endwalls compose both Obtuse Angles, respectively, to improve the cascade aerodynamic characteristics.
Han Wan-jin - One of the best experts on this subject based on the ideXlab platform.
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Effects of Leaning and Curving of Blades With High Turning Angles on the Aerodynamic Characteristics of Turbine Rectangular Cascades
Journal of Turbomachinery, 1994Co-Authors: Han Wan-jin, Wang Zhong-qi, Tan Chunqing, Shi Hong, Zhou MochunAbstract:To understand the effects of the origination and development of centralized vortices on the aerodynamic characteristics of turbine rectangular cascades with high turning Angles, experiments with five-hole microspherical probes, accompanied by color helium bubble flow displays, were carried out. The measurement planes are arranged as three before, six in, and one after the cascade. The experiments reveal that the origination and development of horseshoe vortices and passage vortices as well as the interaction of the latter almost dominate the whole flow field of traditional linear cascades. Lean linear cascades favor the horseshoe vortices and passage vortices in the acute Angle zone, and impede those in the Obtuse Angle zone. So it is a logical result to adopt the negatively curved blades, whose pressure surfaces and both endwalls compose both Obtuse Angles, respectively, to improve the cascade aerodynamic characteristics.
Yanyao Jiang - One of the best experts on this subject based on the ideXlab platform.
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On the intrusion-like co-zone twin-twin structure: An in situ observation
Materials Letters, 2021Co-Authors: Culbertson, Yanyao JiangAbstract:Abstract An in situ optical microscopy combined with ex situ electron backscatter diffraction testing was applied to a pristine single-crystal magnesium specimen under monotonic tension along the c-axis. An intrusion-like co-zone twin-twin structure is observed for the first time at the micron scale. In situ observation reveals that the intrusion-like twin-twin structure consists of multiple twin-twin boundaries (TTBs) and incoherent twin boundaries (I-CTBs) following energetically favorable formation sequences. The initial interaction results in the impinging TTBI and the acute-Angle TTBA. In the local junction region on the Obtuse Angle side, the impinging twinning dislocations (TDs) further deposit near TTBI due to the preferred local twinning shear stress, leading to the incoherent curve of the impinging twin boundary adjacent to TTBI. Shortly after, the barrier twin boundary on the Obtuse Angle side migrates and encompasses the incoherent impinging twin boundary. The combination of sequential TTBI, TTBA, and I-CTBs formed locally on the Obtuse Angle side shapes the final configuration of the intrusion-like twin-twin structure at the micron scale.
Wang Zhong-qi - One of the best experts on this subject based on the ideXlab platform.
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Effects of Leaning and Curving of Blades With High Turning Angles on the Aerodynamic Characteristics of Turbine Rectangular Cascades
Journal of Turbomachinery, 1994Co-Authors: Han Wan-jin, Wang Zhong-qi, Tan Chunqing, Shi Hong, Zhou MochunAbstract:To understand the effects of the origination and development of centralized vortices on the aerodynamic characteristics of turbine rectangular cascades with high turning Angles, experiments with five-hole microspherical probes, accompanied by color helium bubble flow displays, were carried out. The measurement planes are arranged as three before, six in, and one after the cascade. The experiments reveal that the origination and development of horseshoe vortices and passage vortices as well as the interaction of the latter almost dominate the whole flow field of traditional linear cascades. Lean linear cascades favor the horseshoe vortices and passage vortices in the acute Angle zone, and impede those in the Obtuse Angle zone. So it is a logical result to adopt the negatively curved blades, whose pressure surfaces and both endwalls compose both Obtuse Angles, respectively, to improve the cascade aerodynamic characteristics.
Tan Chunqing - One of the best experts on this subject based on the ideXlab platform.
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Effects of Leaning and Curving of Blades With High Turning Angles on the Aerodynamic Characteristics of Turbine Rectangular Cascades
Journal of Turbomachinery, 1994Co-Authors: Han Wan-jin, Wang Zhong-qi, Tan Chunqing, Shi Hong, Zhou MochunAbstract:To understand the effects of the origination and development of centralized vortices on the aerodynamic characteristics of turbine rectangular cascades with high turning Angles, experiments with five-hole microspherical probes, accompanied by color helium bubble flow displays, were carried out. The measurement planes are arranged as three before, six in, and one after the cascade. The experiments reveal that the origination and development of horseshoe vortices and passage vortices as well as the interaction of the latter almost dominate the whole flow field of traditional linear cascades. Lean linear cascades favor the horseshoe vortices and passage vortices in the acute Angle zone, and impede those in the Obtuse Angle zone. So it is a logical result to adopt the negatively curved blades, whose pressure surfaces and both endwalls compose both Obtuse Angles, respectively, to improve the cascade aerodynamic characteristics.
