Results 1 to 10 of about 90 (52)
Experimental Study on Porpoising of a High-Speed Planing Trimaran
Journal of Marine Science and Engineering, 2023 Porpoising is defined as unstable coupled heave and pitch motions. In this study, seven test conditions with various longitudinal locations of the center of gravity and the moment of inertia were designed to study the porpoising phenomenon of a tunnel ...
Liru Zan, Hanbing Sun, Shijie Lu
exaly +5 more sources
Experimental Study on Motion Behavior and Longitudinal Stability Assessment of a Trimaran Planing Hull Model in Calm Water [PDF]
Journal of Marine Science and Engineering, 2021 In this study, a high-speed planing trimaran hull form is designed, and the effects of different displacements and gravity longitudinal layouts on the performance of the trimaran planing hull in calm water are experimentally investigated in the towing ...
Shijie Lu, Hanbing Sun, Jiuyang Cang
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Numerical Investigations on the Resistance and Longitudinal Motion Stability of a High-Speed Planing Trimaran [PDF]
Journal of Marine Science and Engineering, 2020 The planing trimaran is a novel kind of aerodynamic alleviated marine vehicle and possesses a unique hybrid hydrodynamic and aerodynamic characteristics.
Hanbing Sun, Shijie Lu
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Numerical Study on Aerodynamic Characteristics of High-Speed Planing Trimaran
Applied Sciences (Switzerland), 2023 When the planing hull is sailing at high speed, the proportion of air resistance to the total resistance increases significantly. Therefore, by studying the aerodynamic characteristics of the planing hull shape, we can analyze the influence of the hull ...
Jiuyang Cang, Hanbing Sun, Lei Wan
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Test Studies of the Resistance and Seakeeping Performance of a Trimaran Planing Hull [PDF]
Polish Maritime Research, 2015 Towing tank tests in calm water were performed on a trimaran planing hull to verify its navigational properties with different displacements and centres of gravity, as well as to assess the effects of air jets and bilge keels on the hull’s planing ...
Ma Weijia +4 more
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Numerical Prediction of Hydrodynamic Performance of Planing Trimaran with a Wave-Piercing Bow [PDF]
Journal of Marine Science and Engineering, 2020 The central hull is the most important structure in the planing trimaran. In order to gain insight into the relationship between hydrodynamic performance and main hull shape, experimental tests and numerical simulations were carried out for volume Froude
Guangsheng Su, Yumin Su
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Journal of Marine Science and Engineering, 2021 A comparative analysis of the hydrodynamic performance of a planing craft in the monomer-form state (MFS) and trimaran-form state (TFS) was performed, and the inhibition mechanism of twin side-hulls on porpoising instability was evaluated based on the ...
Jiandong Wang +3 more
doaj +2 more sources
RivQNet: Deep Learning Based River Discharge Estimation Using Close‐Range Water Surface Imagery
Water Resources Research, Volume 59, Issue 2, February 2023., 2023 Abstract Streamflow data is often the most critical input for hydrologic and hydraulic research, modeling, and design studies. Streamflow measurement using close range non‐contact sensing such as image velocimetry is a new technique that is yet far from maturity.
S. Ansari +4 more
wiley +1 more source
Normalisation of airflow limitation in asthma: Post‐hoc analyses of TRIMARAN and TRIGGER
Clinical and Translational Allergy, Volume 12, Issue 4, April 2022., 2022 Abstract Background In asthma, persistent airflow limitation (PAL) is associated with poorer control, lung function decline and exacerbations. Using post‐hoc analyses we evaluated: the relationship between post‐salbutamol PAL at screening, airflow limitation (AL) during 52 weeks treatment with extrafine beclometasone dipropionate/formoterol fumarate ...
Alberto Papi +5 more
wiley +1 more source
Advances in Civil Engineering, Volume 2021, Issue 1, 2021., 2021 This work aims to achieve the 6000t compression‐shear test machine frame design with the lightweight. The force condition of the compression‐shear test machine frame under limited working conditions is first analyzed, and the static analysis of the compression‐shear test machine frame is performed using ABAQUS.
Genshang Wu +8 more
wiley +1 more source