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Mohammed Amine Chelabi, Mohammed Kamel Hamidou, Mohammed Hamel
Pág. 225 - 233
The development of the aerofoil-shaped turbomachine blades is of prime importance for achieving the appropriate deflection of a three dimensional flow through desired angles, to work at the same degree of incidence and thereby providing the required perf...
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Ibtihal Ahmed Alablani and Mohammed Amer Arafah
In Underwater Sensor Networks (UWSNs), the energy sources of sensor nodes are limited and difficult to recharge and solar energy cannot be used in that environment. The power issue is one of the most significant constraints in underwater sensor networks ...
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Hamada Mohmed Abdelmotalib Ahmed, Byung-Guk Ahn and Jeekeun Lee
The current study addresses the effect of different designs of the exhaust mixer and aft-deck on the performance of a two-dimensional convergent nozzle represented by the internal and external flows and heat transfer process. The effect of different exha...
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Bin Chang, Jie Huang and Wei-Xing Yao
In order to improve the thermal protection performance of the active thermal protection system (TPS) based on the spike and jet, an adjustable non-ablative thermal protection system, of which the spike can be rotated in the direction of the free stream, ...
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Carson L. Running and Thomas J. Juliano
The global surface pressure was measured on a 7°
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half-angle circular cone/flare model at a nominally zero angle of attack using pressure-sensitive paint (PSP). These experiments were conducted to illustrate fast PSP?s usefulness and effectiveness at m...
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Pureum Kim and Sang-Young Park
This study investigates the preliminary trajectory design for high-thrust missions to near-Earth asteroids (NEAs), considering distance and phase angle constraints during the approaching phase to enable pre-rendezvous optical navigation and the scientifi...
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Penghui Li, Dong Yang, Zixuan Fang, Qingfei Fu and Lijun Yang
Gelled fuels have promising applications in the aerospace field. Higher density and calorific value can be achieved with the addition of energetic metal particles to gelled fuels, which can also effectively improve the combustion efficiency of the fuel a...
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Yan Gao, Yue Zhou, Wei Guo, Yifan Fu, Sen Gao, Zhenzhuo Wei, Hongming Sun and Yu Sun
The present study proposes a low-energy consumption multipoint sampler carried by a deep-sea landing vehicle (DSLV) to meet the requirements of time series sampling in local areas and location series sampling in wide areas, and an optimization method of ...
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Yuzheng Li, Jintao Du, Yijun Lan, Heng Du and Hui Huang
Aiming at the problem of valve port erosion caused by contaminated particles, a three-dimensional prediction model of valve orifice erosion was established based on computational fluid dynamics (CFD) and erosion theory, considering the influence of the v...
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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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Houlin Liu, Jiawei Lin, Runan Hua and Liang Dong
In order to eliminate the noise in the pumping system and prolong the service life of the equipment, an optimization design method for a muffler structure is proposed. The inside of the muffler is designed with a water guide cone which plays the role of ...
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Hirotaka Otsu
For most re-entry capsules, the shape of the forebody of the capsule is designed based on the blunted nose cone. A similar shape can be created using a hyperboloid of revolution that can control the nose bluntness and the half angle of the cone easily. I...
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Maurizio Pollino, Sergio Cappucci, Ludovica Giordano, Domenico Iantosca, Luigi De Cecco, Danilo Bersan, Vittorio Rosato and Flavio Borfecchia
Earthquake-induced rubble in urbanized areas must be mapped and characterized. Location, volume, weight and constituents are key information in order to support emergency activities and optimize rubble management. A procedure to work out the geometric ch...
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Cary Smith, Mark Gragston, Yue Wu and Zhili Zhang
This work provides an analysis of an air-assisted atomizing nebulizer?s spray characteristics and combustion behaviors via application of various diagnostics. Two-phase far-field flows and flames of liquid ethanol and practical aviation fuel Jet A were c...
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Ping-Jen Hou, Syamsiah Syam, Wen-Chien Lan, Keng-Liang Ou, Bai-Hung Huang, Ka-Chun Chan, Chi-Hsun Tsai, Takashi Saito, Chung-Ming Liu, Hsin-Hua Chou, Yueh-Tzu Huang and Fang-Yu Fan
This study aimed to evaluate the impact of surface-modified biomedical titanium (Ti) dental implant on osseointegration. The surfaces were modified using an innovative dip-coating technique (IDCT; sandblasted, large-grit, and acid-etched, then followed b...
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Woo-Jin Han, Jae Joon Hwang, Yun-Hoa Jung, Bong-Hae Cho, Kee-Joon Lee, Hyung-Seog Yu and Sung-Hwan Choi
This study sought to test the feasibility of a newly developed plane called computed modified absolute mandibular midsagittal plane (cmAMP) based on the similarity index (SI) for evaluating the stereoscopical symmetry of the mandible by comparison with o...
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Gergely I. Novotni and Viktor Józsa
Swirl burners are widely used in numerous practical applications since they are characterized by low pollutant emission and a wide operating range. Besides reliable operation, a burner must fulfill noise emission regulations, which is often a sound press...
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Qiyong Liang, Yixin Zhang and Dongyu Yang
By developing new wave structure function of a beam waves, we derive the transmitting probability of signal vortex modes in oceanic turbulence based on Rytov approximation theory. Applying this transmitting probability of signal vortex modes, we study th...
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Shibao Deng, Yun Zhu and Yixin Zhang
By using the two-frequency coherence function model of a beam in a turbulent medium and the localized wave theory of the polychromatic beam, we develop the spectrum average mutual coherence function of the localized wave of Bessel?Gaussian amplitude enve...
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Hao Zhang, Xinzhong Li, Haixiang Ma, Miaomiao Tang, Hehe Li and Yangjian Cai
We report on a novel optical vortex, named as centrosymmetric optical vortex (CSOV), which is constructed via four conventional optical vortices (OVs) with different topological charges (TCs). The orbital angular momentum (OAM) density satisfies centrosy...
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