... ABSTRACT Several model tests related to two flexible pipes in tandem and side-byside were performed. It was found that the response of the downstream pipe attributed to the interference of vortex induced vibration (VIV) is dependent on the reduced velocity of the upstream cylinder, as well...

... structures and the layouts which could be utilized for reducing the construction cost by considerable amount. However, there are some disadvantages associated with physical model testing that are related to experimenting in facilities of limited spatial extent which require that phenomena are scaled down...

... ABSTRACT This paper presents a comparative study of FPSO model tests and numerical analyses that have been carried out for a joint project between KIOST and IMP. With a proposed design of FPSO for Mexican GoM (Gulf of Mexico), IMP and KIOST have been collaborating with each other. IMP proposes...

... ABSTRACT: This paper is aimed at enabling the confident use of existing model test facilities for ultra deepwater application without having to compromise on the widely accepted range of scales currently used by the floating production industry. The upper sections of each line are modeled...

... proper Reynolds number scaling and the implications of this issue are discussed. INTRODUCTION Model testing is used to facilitate technological advancement of systems, where prototype testing is not economically feasible. It is a proven methodology for research and development of ocean and offshore...

... Caspian Sea. KEY WORDS: Ice-resistant platform; ice load; regulatory documents; ice model tests; shallow water. INTRODUCTION Current standards outline a restricted class of ice-resistant gravity and pile-gravity type structures for which theoretical methods of determining global ice loads have been...

... waters is limited. In order to investigate shore protection abilities of rock berms against ice actions, two sets of ice model testing of the Northstar Island protected by berms were performed at two different testing facilities. Two models were constructed at geometric scale factors of 42 and 50. Each...

... and sloshing impact load which is the critical source of loads on the membrane type containment systems. Up to the present, the best way to properly assess sloshing impact pressures on surrounding walls is a model testing for wide-ranged excitation conditions. These impact pressures obtained from model tests...

... in the TDZ is not fully understood and the complex soil behavior may not be accurately captured by models used within the industry. This uncertainty can have significant implications for the design and resulting project costs. Large-scale physical model testing has been used to investigate soil-riser...

... Principles, uncertainties and limitations in model testing of ultra deepwater floating systems by use of truncated lines & risers in combination with coupled numerical analysis have been investigated. A numerical case study with a semi-submersible moored in ultra deep water GOM...

... ABSTRACT A combination of numerical computations, model testing in the controlled environment of a tow tank, and scale prototype testing at sea led to some encouraging findings about a wave energy conversion devise coined the "NAF", but also demonstrated deficiencies in the propeller generator...

... and their load effects. New and updated guidance is provided on vortex induced vibrations in current and waves, and vortex induced motions of floaters. The new RP also has a chapter on model testing. INTRODUCTION DNV Classification Note 30.5: Environmental Conditions and Environmental Loads (CN 30.5...

.... Two examples demonstrate how static stability depends on the weather conditions. A dynamic stability analysis is difficult to carry out, due to the strong dependence on the directions of current, wind and waves. To check the positioning performance of the system model tests have been carried out using...

... condition model testing characteristic Model Testing of a Variable-Pitch Aerodynamic Turbine T. Finnigan Energetech Australia Pty. Ltd., Sydney, NSW, Australia D. Auld Department of Aeronautical Engineering, University of Sydney, Sydney, NSW, Australia ABSTRACT A new variable-pitch air turbine...

... ABSTRACT A selected range of problems and solutions in hydrodynamic model testing is discussed. The work is limited mainly to the interpretation of data from experiments in irregular waves. Procedures within nonlinear data processing and the probabilistic interpretation of test data...

... ABSTRACT Green water events have made local damage on Norwegian production ships in sea states significantly lower than the 100-year sea states. These incidents have occurred both in the bow area, amidships and aft. Both analyses and model testing demonstrate a significant amount of green...

... and the line dynamics. Experimental verification of the program is carried out by detailed numerical reconstructions of time series from model tests with a semisubmersible. By use of empirical drift forces estimated from the tests, the reconstructions compare well with the measurements, while standard...

... riser tlp resonance installation model testing platform safety proposal design philosophy tlp design philosophy application tether neutrally buoyant tether Proceedings of the Fifth (1995) International Offshore and Polar Engineering Conference The Hague, The Netherlands, June 11-16,1995...

... Effects in Model Testing of Floating Structures Kjell Larsen and Erling Huse Norwegian Marine Technology Research Institute (MARINTEK) AlS Trondheim, Norway ABSTRACT To predict full-scale motions from tests with a scale model in an ocean basin is today recognized as the most accurate way of motion...

... Disaster. The author coordinated the extensive model tests that were undertaken for the Commission by the Hydraulics laboratory of the National Research Council of Canada and the Norwegian Hydrodynamics laboratory (now known as Marintekl. A ballast control simulation study, was carried out with a 1 :25...