... and degrees of structural blockage increase in size, the question arises as to which extent a large jacket foundation can still be classified as hydrodynamic transparent. In-depth understanding of the current and wave induced flow field around jacket structures has yet to be achieved. The interaction...

... wind energy vortex ring simulation method strength china government vps turbulence vortex generator particle vorticity equation computational efficiency asia government flow field wind turbine vp method vortex method wind turbine wake blade root bem theory ABSTRACT...

.... united states government north america government asia government vehicle approximate model underwater vehicle flow field resistance marine transportation upstream oil & gas optimization problem china government artificial intelligence machine learning algorithm average wake fraction...

... development fowt rotor power inflow wind condition flow field Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-80-7; ISSN...

... ABSTRACT In order to study the fluid resistance characteristics of the underwater dredging robot, the flow field of the underwater dredging robot was simulated by CFD method under the condition of the different rotation angles of the superstructure and the different inflow velocities...

... ABSTRACT The objective of the present study is to investigate, by means of velocimetric measurements, the flow field generated by two marine propellers running with inclined shaft configuration. The two propellers represent two alternative designs for the same application, mostly differing...

.... In this paper, the nonlinear acoustic characteristics of the INSANA E779A propeller are studied for the non-cavitation conditions. The open source platform OpenFOAM is used to simulate the flow field and sound field. The DES model is adopted for the flow field coputation, and Ffowcs Williams and Hawkings (FW-H...

... ABSTRACT In this paper, the large-eddy simulation (LES) method with WALE sub-grid scale model is applied to study the wall pressure fluctuation characteristic of a NACA0015 airfoil protrusion. The flow field, pressure fluctuating time-average characteristic, self-power spectrum, and wavenumber...

... shock wave nozzle outlet flow field frequency water management orifice bubble motion mpa marine transportation high-luminance area orifice plate shock wave generation area fluctuation typ discharge pressure shock wave generation orifice diameter organism ABSTRACT Marine...

... of Technology, Wuhan, Hubei Province, China 3. Engineer of China Ship Development and Design Center, Wuhan, Hubei Province, China ABSTRACT Flow field resistance interfaces of catamaran are produced between hulls at high speed, which are related to its speed and demi-hull spacing. In this paper, the RANS method...

... and grille are the main inflow components of waterjet propulsion unit. There have been many studies on the hydrodynamic performance and optimization methods of inlet flow channels, such as Huang (2021) studied the influence of vortex generators on the flow field in the inlet duct by numerical calculation...

..., accompanied by the accumulation and release of a large amount of energy. The cavitating flow for the propeller working in the wake flow of the ship is relatively complex, affecting the hydrodynamic characteristics of the propeller, and the unsteady fluctuating pressure and noise in the flow field. In view...

... the free surface and outside the usual frictional wake zone. Olivieri et al. (2003) measured bow and shoulder waves of standard mode DTMB 2349 at high speed by wave height instrument, and discussed in detail the mean and root mean square values of wave heights in the flow field around the hull...

... ABSTRACT This study presents a novel method for Particle Image Velocimetry (PIV) that improves the accuracy and quality of flow field data in water wave experiments. The proposed method includes an image preprocessing step to eliminate the effect of light refraction and an enhancement...

... hull profiles for free-drop experiments, which confirmed that the main hull has a significant influence on the magnitude and spatial distribution of slamming loads on wet decks. Duan WY et al. (2022) compared the motion, flow field, free surface, and slamming pressure under different drop heights...

... production monitoring control method flow control china government ff-teng wang reservoir surveillance voltage signal flow field electrode output performance microcontroller electrical signal circular cylinder copper electrode nozzle system output voltage Proceedings of the Thirty-third...

... for various conditions. For example, due to the large separation around the bow shoulder under oblique sailing, vortexes cannot be simulated with high accuracy by standard turbulence models. In the present study, we have performed numerical resistance tests and flow field analyses for the JBC and KVLCC2...

... of high accuracy and is able to provide rich flow field information. Therefore, CFD has become one of the important methods for predicting the hydrodynamic performance of floating structures. The interaction between waves and floating structures has always been a concern in the field of naval architecture...

... different scales respectively. Finally, A large-scale and a small-scale network are trained separately to achieve the response and capture of different process, the trained networks were then tested by predicting the flow fields in future time steps. This work has analyzed the influence of multi-scale...

... in the y-direction when the tethered underwater vehicle is towed in the three-dimensional flow field. INTRODUCTION The tethered underwater vehicle is widely used in exploring ocean resources and investigating the marine environment. It usually comprises hydrofoils, umbilical cable, and ducted...