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Mengdi Ma, Dasheng Wei, Yanrong Wang, Di Li and Hui Zhang
Rotating parts of aeroengines need to have a high speed margin according to the civil aviation airworthiness regulations. Previous studies on burst speed are based on mechanical properties of standard specimens. In this paper, a new method for predicting...
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Sooheyong Lee, Hyusang Kwon, Byeong-Gwan Cho and Eric C. Landahl
We present the technical realization of a high-speed hard X-ray single-photon counting-detection scheme based on a commercial avalanche silicon photodiode and high-speed oscilloscope. The development is motivated by the need to perform pulse-resolved pho...
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Hongqing Lv, Shan Liu, Jiahao Chen and Baoli Li
The energy consumption of a vehicle is closely related to the resistance it receives, and it is of great significance to study the drag reduction of a vehicle to promote energy conservation and emissions reductions. Boundary layer control drag reduction ...
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Chunlong Ma, Dongyan Shi, Chao Li, Dongze He, Guangliang Li and Keru Lu
In this study, a compressible three-phase homogeneous model was established using ABAQUS/Explicit. These models can numerically simulate the pulsation process of cavitation bubbles in the free field, near the flat plate target, and near the curved bounda...
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Tongsheng Wang, Tiezhi Sun, Cong Wang, Chang Xu and Yingjie Wei
Microbubble drag reduction has good application prospects. It operates by injecting a large number of bubbles with tiny diameters into a turbulent boundary layer. However, its mechanism is not yet fully understood. In this paper, the mechanisms of microb...
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Liqiang Chen, Haijun Xuan, Wenbin Jia, Jianxin Liu, Zehui Fang and Yao Zheng
The airworthiness standards of the transport category airplanes stipulate that the high energy rotor equipment must be of the sufficient containment capacity. It is of great importance to study the containment and weight reduction for the air turbine sta...
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Josie Mielhausen, Jaclyn M. H. Cockburn, Paul V. Villard and André-Marcel Baril
Vortex rock weirs (VRW) are often used in natural channel design applications to maintain channel form and function, provide physical channel stability, and enhance aquatic habitats. A balanced approach is required to address (often) conflicting goals of...
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Heejang Moon, Seongjoo Han, Youngjun You and Minchan Kwon
This paper presents an attempt to use the hybrid rocket for marine applications with a 500 N class hybrid motor. A 5-port high density polyethylene (HDPE) fuel grain was used as a test-bed for the preliminary assessment of the underwater boosting device....
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Awos Kh. Ali,Iain Phillips,Huanjia Yang
Pág. 67 - 72
Networks performance is traditionally evaluated using packet delivery ratio (PDR) and latency (delay). We propose an addition mechanism the drop-burst length (DBL). Many traffic classes display varying application-level performance according to the patte...
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