... with advantages and disadvantages of each method as they relate to model manufacturing. The paper then presents material properties of printed specimens obtained from tensile tests and discusses AM scaled ship models fabricated at USNA. Finally, a hydro-elastic model testing experiment conducted at USNA using...

... field observations (Miri and Davidson-Arnott, 2021), wind tunnel experiments (Li et al., 2022), and numerical simulations (Rosenfeld et al., 2010). Field observations focused on studying the airflow patterns of vegetation windbreaks, particularly in arid regions and agricultural fields. For instance...

... for such investigations is shown in Figure 1. Ultimately these experiments can help in identifying accumulation hotspots and facilitate a holistic environmental assessment coating emissions. In this work, a first step is taken towards the development of an experimental procedure to investigate particulate emissions from...

.... COMPARISON WITH THE EXPERIMENTAL AND NUMERICAL RESULTS (a) The 1st impact (b) The 5th impact Figure 5. Comparisons of force-displacement curves of honeycomb plate under repeated impacts. Figure 5 shows the impact force-displacement curves of repeated impacts experiment and numerical simulation. One can...

... explosion experiments to study the complex dynamics of underwater explosion bubble between two parallel plates. Wang et al. (2023) revealed the flow and the pulsation process of underwater explosion bubble between two parallel plates at different detonation distances by numerical and experimental study...

... failure and cumulative plastic failure. A large number of ship fracture accidents gave us a wake-up call recently. (Huang et al., 1996) first analyzed the cumulative plasticity of hull structure under cyclic load. Through continuous theoretical research and experiments, it was concluded that the strength...

... to observe from a point of mechanical research view. The motion of the model was measured by capturing an image analysis target attached to the model ship with measurement cameras. The experimental conditions are shown in Table 2. Regular waves were used for the model experiment. The direction...

... simulation experiments. The experimental results show that the tracking errors of the trajectory coordinates, heading angle, surge velocity, sway velocity, and yaw rate of the unmanned ship all converge to 0. Thus, the effectiveness of the trajectory tracking control algorithm is verified. This method does...

... under high pressure, this paper designs a gas pipe leakage experimental platform to study the change in gas release rate under high pressure. Leakage Test System Considering the safety of the experiment, the air is used for a series of experiments. Fig.2 shows the gas leakage test platform, which...

... ABSTRACT In this paper, the influence of bubble flow on the flow field at the bottom of the plate is experimentally studied. In the experiment, PIV (Particle Image Velocimetry) is used to observe the complex flow field at the bottom of the plate in the circulating water tank. By using...

... DATA Free-running model ship experiments The model experiment was conducted in an experimental pond on the campus of Osaka University. The following procedure was used to experiment. 1. For each free-running test, set the rudder angle to Table 2. 2. After confirming that the rudder angle has been...

... with the experiments. Contribution Study within the paper presents a complete method of azimuth thruster models and losses identification for the purpose of DP simulation and operations with experimental validation. The elaborated procedure can be copied and used as a universal approach to the azimuth thruster models...

... reliable experimental means for water jet propulsion pumps’ design optimization of high-performance, vibration and noise reduction, momentum conversion mechanism and flow structure-induced dynamic problems. production logging piv vane experiment interference production monitoring endoscopic...

.... This article develops a DIC algorithm based on MATLAB using digital image correlation methods, and conducts experiments to obtain deformation images of specimens. By using the DIC algorithm and VIC-2D software to analyze simulated speckle patterns and experimental images, the accuracy and practicality...

... models, future developments could herald a new era of so-called virtual reality for process engineering, featuring interactive simulations instead of step-wise experimental scale-up studies and cost-intensive empirical trial-and-error methods. (Alobaid et al. 2022) production logging production...

... for the design of the ship structure. Due to the complexity of the flooding of a damaged cabin, there are some limitations for experimental methods. For the water flooding process, it is difficult to comprehensively monitor the entire inflow area. In addition, the experiment requires a lot of time and cost...

...-world applications. optimization optimization 1 openlist experiment artificial intelligence node expansion global path planning path length planning & scheduling algorithm efficiency information machine learning table 8 runtime obstacle cubic b-spline interpolation curve...

... attached to the surface of a fixed structure were experimentally investigated by high-speed photography. The coupling pulsation effect between two air bubbles and underwater pulsating bubbles under various dimensionless distance parameters was focused on. A variety of interesting and complex bubble and air...

.... The experimental arrangement is shown in fig. 4. The proportion of the ship model used in the experiment is 1 : 30. The experiment was carried out under the typical working condition of LCO2 and the wave height of 1.5 m. The experimental parameters are shown in Table 3. In the experiment, a high-precision camera...

... ABSTRACT In this study, a natural circulation experimental system is established to investigate five typical instability modes in a pipeline. Transient two-phase flow images are captured by a high-speed camera during the experiments, and the spatio-temporal feature map of the liquid level...