Abstract The paper presents a proposal for formalised approach to hull shape optimisation with respect total resistance, by fine-tuning longitudinal volume distribution. An algorithm automated modification of the is presented, allowing varying sectional area distribution negligible influence on resulting displacement. Computational fluid dynamics (CFD) solver STAR-CCM+ and computer computer-aid...

VIV model test results are presented for a bundle of three parallel pipes all lying in the same plane, similar to a riser with large kill and choke lines. The rigid model was attached to a spring-mounted frame in the MIT towing tank. The horizontal model was towed in the tank and allowed to respond in free vibration to vortex-induced vibration in the cross-flow direction. The angle of attack of...

Underwater navigation presents crucial issues because of the rapid attenuation electronic magnetic waves. The conventional underwater methods are achieved by acoustic equipment, such as ultra-short-baseline localisation systems and Doppler velocity logs, etc. However, they suffer from low fresh rate, bandwidth, environmental disturbance high cost. In paper, a novel visual is investigated based ...

Since 1994 the Australian Maritime Engineering Cooperative Research Centre (AME CRC) has conducted an extensive set of towing tank experiments and theoretical predictions for calm and rough water, on a series of 11.3 metre IMS style racing yacht hulls with varying form parameters. In collaboration with Murray, Burns & Dovell (MBD), the AME CRC has developed a Velocity Prediction Program (VPP), ...

A Round Robin Tests program is being undertaken within the EC MaRINET2 initiative. This programme studies used facility influence can have on performance evaluation of a horizontal axis tidal turbine prototype when it operated under wave and current conditions. In this paper, we present design experiments that throughout work results related to flow characterisation obtained at Ifremer circulat...

The reliability of tests for isometric strength of the shoulder joint in symptomatic subjects has yet to be established. For this purpose, interrater and intrarater agreement trials were undertaken to ascertain the reliability of manual muscle tests, a handheld dynamometer, and a spring-scale dynamometer for 5 different shoulder movements in symptomatic subjects. Intraclass correlation coeffici...

The growing interest in developing autonomous underwater vehicles (AUVs) and creating sensor networks (USNs) has led to a need for communication tools environments. For obvious reasons, wireless means of are the most desirable. However, conducting research real conditions is troublesome costly. Moreover, as hydroacoustic propagation change very significantly, even during day, assessment propose...