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Sheng Yan, Zhili Zou and Zaijin You
The wave-induced Stokes drift plays a significant role on mass/tracer transport in the ocean and the evolution of coastal morphology. The tracer advection diffusion equation needs to be modified for Eulerian ocean models to properly account for the surfa...
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Santiago Lain, Martin Ernst and Martin Sommerfeld
This paper deals with the numerical analysis of the particle inertia and volume fraction effects on colliding particle-pair velocity correlation immersed in an unsteady isotropic homogeneous turbulent flow. Such correlation function is required to build ...
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Yanbo Fu, Wenjie Zhao and Liu Liu
Ducted-fan tail-sitter unmanned aerial vehicles (UAVs) provide versatility and unique benefits, attracting significant attention in various applications. This study focuses on developing a safe reinforcement learning method for back-transition control be...
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Chunhui Wang, Jiaan Wang, Chao Wang, Zeping Wang and Yuan Zhang
The marginal ice zone (MIZ) is located at the junction of ice-covered areas and open water, where waves cause ice floes to break up and change their state of motion, thus threatening the safety of ships navigating the ice. This study employs the Structur...
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Chen Chen, Dongbin Pan, Lin Yang, Han Zhang, Bing Li, Chengcai Jin, Xitong Li, Yong Cheng and Xiuping Zhong
As an innovative way to exploit marine natural gas hydrates (NGH), the solid fluidization exploitation method is to erode hydrate-bearing sediment (HBS) into fine particles by a water jet and transport the particles to an offshore platform. To investigat...
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Marilena Pannone, Domenica Mirauda, Annamaria De Vincenzo and Bruno Molino
A first-order analytical solution is proposed for the actual depth-averaged concentration of tracers in shallow river flows in the presence of large Peclet numbers (defined as the ratio of section-averaged velocity times channel width to turbulent diffus...
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Shihang Liu, Jianmin Yang, Haining Lu, Pengfei Sun and Bei Zhang
The discharge of sediment plumes, which occurs mainly in the two depth zones, has a critical impact on assessing the deep-sea environment. Therefore, it is necessary to establish the corresponding physical oceanography for the evolution of these sediment...
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Pengfei Sun, Haining Lu, Jianmin Yang, Liwen Deng, Mingyue Liu and Shuang Li
The seafloor soil is characterized by high water content, strong compressibility, and low shear strength. Deep-sea mining vehicles (DSMV) are prone to sinking when walking on the surface of the soil, which will cause significant reduction in traction per...
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Paran Pourteimouri and Kourosh Hejazi
An integrated two-dimensional vertical (2DV) model was developed to investigate wave interactions with permeable submerged breakwaters. The integrated model is capable of predicting the flow field in both surface water and porous media on the basis of th...
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Mahdi Abkar
A large-eddy simulation (LES) study of vertical-axis wind turbine wakes under uniform inflow conditions is performed. Emphasis is placed on exploring the effects of subgrid-scale (SGS) modeling on turbine loading as well as on the formation and developme...
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Sien Liu, Qinghua Ye, Shiqiang Wu and Marcel J. F. Stive
Wind induced hydrodynamic circulations play significant roles in the transport and mixing process of pollutants and nutrients in large shallow lakes, but they have been usually overlooked, while environmental, biological, and ecological aspects of eutrop...
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Fernando Porté-Agel, Yu-Ting Wu and Chang-Hung Chen
In this study, large-eddy simulations (LESs) were performed to investigate the effects of changing wind direction on the turbine wakes and associated power losses in the Horns Rev offshore wind farm. In the LES framework, the turbulent subgrid-scale stre...
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Rui Tao, Hongxiang Ren and Yi Zhou
Under the current background of navigation education, students generally lack a comprehensive grasp of ship firefighting equipment?s operation. Therefore, we develop a novel ship firefighting training simulator with a multi-sensory human?computer interac...
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Rúben Meireles, Leandro Magalhães, André Silva and Jorge Barata
The present paper describes a tool developed in-house for the modeling of free-falling water droplet cooling processes. A two-way coupling model is employed to account for the interactions between the droplets and the carrier fluid, following a Eulerian?...
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Dimitris I. Manolas, Vasilis A. Riziotis and Spyros G. Voutsinas
Accurate and efficient numerical wave generation and absorption of two-dimensional nonlinear periodic waves traveling on a steady, uniform current were carried out in a potential, fully nonlinear numerical wave tank. The solver is based on the ?oundary ?...
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Javad Enferadi, Mohammad Tavakolian
Pág. 107 - 114
Dynamics of a highly stiff parallel machine tool is the subject of this paper. High stiffness, good accuracy, relatively large workspace and free of singularities on the whole workspace makes the manipulator suitable for machining applications as an XY-T...
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Hang Wan, Ran Li, Carlo Gualtieri, Huixia Yang and Jingjie Feng
Aerated flows are characterized by complex hydrodynamics and mass-transfer processes. As a Lagrangian method, smoothed particle hydrodynamics (SPH) has a significant advantage in tracking the air-water interface in turbulent flows. This paper presents th...
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Hang Wan, Ran Li, Carlo Gualtieri, Huixia Yang, Jingjie Feng
Pág. 1 - 15
Aerated flows are characterized by complex hydrodynamics and mass-transfer processes. As a Lagrangian method, smoothed particle hydrodynamics (SPH) has a significant advantage in tracking the air-water interface in turbulent flows. This paper presents th...
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Emilia Georgiana Prisacariu, Tudor Prisecaru, Razvan Edmond Nicoara, Jeni Vilag and Valeriu Alexandru Vilag
Visualization methods have always been used to inspect flows that are invisible to the naked eye. Seedless velocimetry has been regarded as an alternative to other intrusive quantitative methods and adapted to fit many applications in the industrial or s...
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Manigandan Paneer, Josip Ba?ic, Damir Sedlar, ?eljan Lozina, Nastia Degiuli and Chong Peng
This study investigates the impact of fluid loads on the elastic deformation and dynamic response of linear structures. A weakly coupled modal solver is presented, which involves the solution of a dynamic equation of motion with external loads. The mode ...
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