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Bo Yang, Hesen Yang, Ning Zhao, Hua Liang, Zhi Su and Dongsheng Zhang
The double-wedge configuration is a typical characteristic shape of the rudder surface of high-speed aircraft. The impact of the shock wave/boundary layer interaction and the shock wave/shock wave interaction resulting from the double wedge on aircraft a...
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Xiaoniu Li, Siyuan Tao, Yongye Li and Li Wan
In order to improve the effective utilization of agricultural irrigation water and to reasonably allocate water resources in irrigation areas, it is necessary to use open channel flow measurement devices that are accurate and easy to carry. In this study...
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Menwagaw T. Damtie, Marshet B. Jumber, Fasikaw A. Zimale and Seifu A. Tilahun
Accurate water flow measurement ensures proper irrigation water management by allocating the desired amount of water to the irrigation fields. The present study evaluated whether the non-intrusive smartphone application ?DischargeApp? could be applicable...
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Sanaz Hadian, Hossein Afzalimehr and Jueyi Sui
This experimental study aims to investigate the characteristics of turbulent flow in channels with vegetated banks and varying channel width under the condition of the incipient motion of bed material. The natural reeds were used as emergent vegetation o...
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Yarui Ma, Jiwen Cui, Hui Wang and Jiubin Tan
As the final flow channel of the liquid rocket engine, the manufacturing of impinging atomization nozzles has become a critical link in the manufacture of impinging atomization components. At present, the high-precision machining of millimeter nozzles in...
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Nikolai A. Voinov, Alexander S. Frolov, Anastasiya V. Bogatkova and Denis A. Zemtsov
This paper presents and patents new profiled- and annular-channel tangential swirlers with 1.8?3 times less hydraulic drag coefficient compared to swirlers with straight channel walls at the same flow rate, respectively. The results of numerical simulati...
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Hanxin Chen, Shaoyi Li and Menglong Li
Conventional signal processing methods such as Principle Component Analysis (PCA) focus on the decomposition of signals in the 2D time?frequency domain. Parallel factor analysis (PARAFAC) is a novel method used to decompose multi-dimensional arrays, whic...
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Hang Trieu, Per Bergström, Mikael Sjödahl, J. Gunnar I. Hellström, Patrik Andreasson and Henrik Lycksam
This study describes a multi-camera photogrammetric approach to measure the 3D velocity of free surface flow. The properties of the camera system and particle tracking velocimetry (PTV) algorithm were first investigated in a measurement of a laboratory o...
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Eliisa Lotsari, Michael Dietze, Maria Kämäri, Petteri Alho and Elina Kasvi
Macro-turbulent flows (i.e., coherent flow structures reaching through the whole water column), have not been studied widely in northern seasonally frozen rivers during both open-channel and ice-covered flow conditions. Thus, we aim: (1) to detect and co...
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Bonguk Koo and Yong-Duck Kang
The results of flow visualization and hot-film measurement in a water channel are presented in this paper, in which the effectiveness of controlling synthetic hairpin vortices in the laminar boundary layer is examined to reduce skin friction. In this stu...
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