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Shiying Cai, Chunpei Cai, Kai Zhang and Jun Li
Rarefication effects on jet impingement loads are studied by comparing recent new formulas at the collisionless flow limit and numerical simulations. The jet exit size is finite, and can be either planar or round. In the simulations, the jets have differ...
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Shiying Cai, Chunpei Cai, Kai Zhang and Jun Li
Rarefication effects on jet impingement loads are studied by comparing recent new formulas at the collisionless flow limit and numerical simulations. The jet exit size is finite, and can be either planar or round. In the simulations, the jets have differ...
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Vincent Casseau, Daniel E. R. Espinoza, Thomas J. Scanlon and Richard E. Brown
hy2Foam is a newly-coded open-source two-temperature computational fluid dynamics (CFD) solver that has previously been validated for zero-dimensional test cases. It aims at (1) giving open-source access to a state-of-the-art hypersonic CFD solver to stu...
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Vincent Casseau, Rodrigo C. Palharini, Thomas J. Scanlon and Richard E. Brown
A two-temperature CFD (computational fluid dynamics) solver is a prerequisite to any spacecraft re-entry numerical study that aims at producing results with a satisfactory level of accuracy within realistic timescales. In this respect, a new two-temperat...
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Guobiao Cai, Lihui Liu, Bijiao He, Guilong Ling, Huiyan Weng and Weizong Wang
Chemical and electrical thrusters are generally utilized to control the attitude and orbit of spacecraft in aerospace. When they are firing, the exhaust expands into the vacuum environment, known as the vacuum plume. The plume flow can collide with space...
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Xianfeng Tan, Bingzhong Song, Huaizhi Bo, Yunwei Li, Meng Wang and Guohong Lu
Underground coal mining-induced ground subsidence (or major ground vertical settlement) is a major concern to the mining industry, government and people affected. Based on the probability integral method, this paper presents a new ground subsidence predi...
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Eldred Lee, Kaitlin M. Anagnost, Zhehui Wang, Michael R. James, Eric R. Fossum and Jifeng Liu
High-energy (>20 keV) X-ray photon detection at high quantum yield, high spatial resolution, and short response time has long been an important area of study in physics. Scintillation is a prevalent method but limited in various ways. Directly detecting ...
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Wei Lin, Cheng Su and Youhong Tang
This paper is devoted to the random vibration analysis of jacket platforms under wave loads using the explicit time-domain approach. The Morison equation is first used to obtain the nonlinear random wave loads, which are discretized into random loading v...
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Hongxia Li, Tianyang Yang, Xuewen Guo, Yupeng Wu, Jun Yan and Qingzhen Lu
Deep-water flexible composite pipes have been widely employed in the domain of deep-water oil and gas transportation, and high-density polyethylene (HDPE) is used to seal the inner sheath of internal oil and gas media containing H2S and CH4, due to its f...
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Emilio Matricciani and Carlo Riva
Because of rain attenuation, the equivalent baseband transfer function of large bandwidth radio-links will not be ideal. We report the results concerning radio links to/from satellites orbiting in GeoSurf satellite constellations located at Spino d?Adda,...
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Sang Hun Kang
To develop technologies for the stable operation of electric propulsion systems, the effects of charge exchange (CEX) on the exhaust plume of a Hall thruster were studied using the particle-in-cell direct simulation Monte Carlo (PIC-DSMC) method. For the...
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Sujung Min, Hara Kang, Bumkyung Seo, Changhyun Roh, Sangbum Hong and Jaehak Cheong
The highly reliable and direct detection of radioactive cesium has gained potential interest due to in-situ detection and monitoring in environments. In this study, we elucidated an integrated and portable probe based on functional plastic scintillator f...
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Wen Tian, Xuefang Zhou, Jianan Yin, Yuchen Li and Yining Zhang
The complex layout of the airport surface, coupled with interrelated vehicle behaviors and densely mixed traffic flows, frequently leads to operational conflict risks. To address this issue, research was conducted on the recognition of characteristics an...
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Weijie Huang, Yuanmin Yang, Rui Pang and Mingyuan Jing
Studying the impact of mainshock?aftershock sequences on dam reliability is crucial for effective disaster prevention measures. With this purpose in mind, a new method for stochastic dynamic response analyses and reliability assessments of dams during se...
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Zdenek Zme?kal, Dana Dluho?ová, Karolina Lisztwanová, Antonín Poncík and Iveta Ratmanová
The paper is focused on predicting the financial performance of a small open economy with an automotive industry with an above-standard share. The paper aims to predict the probability distribution of the decomposed relative economic value-added measure ...
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Clara Freijo, Joaquin L. Herraiz, Fernando Arias-Valcayo, Paula Ibáñez, Gabriela Moreno, Amaia Villa-Abaunza and José Manuel Udías
Chest X-rays (CXRs) represent the first tool globally employed to detect cardiopulmonary pathologies. These acquisitions are highly affected by scattered photons due to the large field of view required. Scatter in CXRs introduces background in the images...
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Lorenzo Pacini, Oscar Adriani, Eugenio Berti, Pietro Betti, Gabriele Bigongiari, Lorenzo Bonechi, Massimo Bongi, Sergio Bottai, Paolo Brogi, Guido Castellini, Caterina Checchia, Raffaello D?Alessandro, Sebastiano Detti, Noemi Finetti, Paolo Maestro, Pier Simone Marrocchesi, Nicola Mori, Miriam Olmi, Paolo Papini, Claudia Poggiali, Sergio Ricciarini, Piero Spillantini, Oleksandr Starodubtsev, Francesco Stolzi, Alessio Tiberio and Elena VannucciniaddShow full author listremoveHide full author list
Calorimetric space experiments were employed for the direct measurements of cosmic-ray spectra above the TeV region. According to several theoretical models and recent measurements, relevant features in both electron and nucleus fluxes are expected. Unfo...
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Quentin Leboutet, Julien Roux, Alexandre Janot, Julio Rogelio Guadarrama-Olvera and Gordon Cheng
This work aims at reviewing, analyzing and comparing a range of state-of-the-art approaches to inertial parameter identification in the context of robotics. We introduce ?BIRDy (Benchmark for Identification of Robot Dynamics)?, an open-source Matlab tool...
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Chunpei Cai
This paper briefly reviews recent work on gaseous plume impingement flows. As the major part of this paper, also included are new comprehensive studies on high-speed, collisionless, gaseous, circular jet impinging on a three-dimensional, inclined, diffus...
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Wenhao Fu, Zeshuai Chen and Jiaqi Luo
Stochastic variations of the operation conditions and the resultant variations of the aerodynamic performance in Low-Pressure Turbine (LPT) can often be found. This paper studies the aerodynamic performance impact of the uncertain variations of flow para...
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