... Roll-on Roll-off (Ro-Ro) ships can experience rapid capsize due to the loss of ship metacentric height from the free surface effect of vehicle deck flooding. To reduce the free surface effect it is useful to add subdivisions or partitions to the vehicle deck. This paper summarizes the results...

.... EXPERIMENT SETUP Figure 1. The scenario of the experimental facility Table 1. Principaldimensionless parameters Parameter Vr U / fnD Re= UD/ m* me / md Ay / D a L/D c / 2 (m ma )k Meaning Reduced velocity Reynolds number Mass ratio Transversal amplitude ratio Aspect ratio Damping ratio The fluid...

... affect the flow itself. Non-invasive techniques, including sonic methods and laser-enabled technologies, avoid this issue, though there are benefits and drawbacks associated with these techniques as well. Measurement system complexity, in particular, can drive experimental cost and schedule. Some proven...

...° and Froude number Fr = 0.28. The TPIV enables fully volumetric flow measurements and the use of -criteria enables vortex volume visualization and core analysis. The objective of the experiment is to extend the knowledge for the static condition vortex separation onset and progression to unsteady dynamic...

... ship was also executed because concerns of large passenger ships in beam wind and waves triggered the development of the new criteria for stability under dead ship condition. Some preliminary but important outcomes from this experiment are also reported in this paper. EXPERIMENTAL METHOD The model...

... for, and the utility of, using such a method. HISTORICAL BACKGROUND Resistance and Propulsion Experiments At the U.S. Navy s original Experimental Model Basin (EMB) and at its David Taylor Model Basin (DTMB) the method used up until about 1970 was to determine the hull resistance using a gravity-type drag dynamometer...

... of high fidelity ship motion prediction methods while maintaining the computational speed required for real-time forecasting. A model scale experiment was performed in 2015 on two Navy ships conventionally moored together. The predicted relative ship motions from MotionSim and ROM were compared...

... intelligence variance experiment iteration statistics probability application prediction algorithm platform regression characteristic american towing tank conference denote optimization problem simulation evaluation quantity particle hydrodynamic spectrum posterior THE 30th AMERICAN...

... impact velocity university s-dic code deformation experiment hydrodynamic pressure deadrise panel THE 30th AMERICAN TOWING TANK CONFERENCE WEST BETHESDA, MARYLAND, OCTOBER 2017 An Experimental Study in the Hydroelastic Response of an Aluminum Wedge in Drop Tests Jonathan R. Eastridge, University...

..., refer to Appendix A of (Lin et al., 2017). Physical Experiment The work herein uses experimental results from R/V Melville, Model 5748, a 1:23 scale physical model. Testing was conducted June 29, 2016 to July 7, 2016 at the Naval Surface Warfare Center, Carderock Division (NSWCCD) in Bethesda, Maryland...

..., the experimental and numerical results will be compared and validated. The instrumentation methodology for log boom line experiments are presented in Castro, Katsuno and Dantas (2017), submitted to ATTC 2017. The presentation in this paper of numerical methodology will take place in several steps. The methodology...

..., to aid in the rapid development and analysis of conceptual designs in order to facilitate full-scale evaluation. marine transportation reduce drag drillstem testing drillstem/well testing modification reservoir simulation model test experiment aft lifting body vehicle lifting body...

..., and the application of an appropriately sized non-skid coating to the model is required for fidelity of model maneuvering experiments. Three methods to scale the coating have been investigated, and conventional geometric scaling and wall shear velocity scaling methods were found to be inadequate. A new scaling...

...). 11 BACKGROUND Previous Experiments In order to obtain ship-specific damping information, roll decay or forced roll oscillation experiments should be performed. Experiments have been performed for naval vessels at the United States Experimental Model Basin (McEntee, 1920; 1931); for cylindrical ship...

... combinations of all three motions. Basic theory and details of the concept design, detailed design, construction considerations, and control software as well as experimental uses and considerations for future improvements are presented and discussed. mechanism experiment motion mechanism configuration...

... In this paper, two experimental facilities that simulate separate regions of the flow about a slender ship moving at constant speed in calm water are described. In the first facility, divergent bow waves are simulated. These waves are generated by a method known as 2D+T in which a two...

... experimentation is necessary in order to draw conclusions about the wave loads applied on the skirt. sensor aircushion excess pressure encounter frequency input level hypothesis experiment flex sensor faltinsen characteristic deflection bow skirt wave tank wave load vehicle frequency aircat...

... modeling of the directionality of the waves, having the ability to reproduce and encounter discrete wave events in a deterministic way, and improving upon the control and quality of the generated wave profiles. wavemaker nswccd seaway model experiment north america government dynamic stability...

... quantitative comparison of existing data to support this has not yet been undertaken. For the measurement of highly aerated flows such as the transom stern wake, no additional surface roughness is needed. EXPERIMENTAL RESULTS In 2007 and 2008 NSWCCD conducted two experiments on Model 5673, which was designed...

... In the winter of 2008, NASA’s Constellation Program Office initiated a full scale experimental program to quantify the hydrodynamic performance of the Orion Crew Module. The intent of such an experiment was to give real world experience to the DoD recovery forces tasked with recovery...