Floating structures have become a major part of offshore structure communities as engineering moves from shallow waters to deeper ones. installation ships or platforms are widely used in these operations. Unexpected wave-induced motions affect floating structures, especially harsh sea conditions. Horizontal on the surface can be offset by dynamic positioning system, and heave controlled compens...

The article considers the fundamental aspects of powerful explosive degassing Earth in north Western Siberia (mainly Yamal). author presents results a comprehensive analysis and compilation large volume factual materials obtained during field studies number catastrophic gas blowout objects 2014—2020. outlines that most craters found Yamal are confined to zone anomalous heat flow area Bovanenkov...

In this paper, we analyse the proper curve $\gamma(s)$ lying on pseudo-sphere. We develop an orthogonal frame $\lbrace V_{1}, V_{2}, V_{3} \rbrace$ along curve, pseudosphere. Next, find condition for to become $V_{k} -$ slant helix in Minkowski space. Moreover, another $\beta(\bar{s})$ pseudosphere or hyperbolic plane heaving $V_{2} = \bar{V_{2}}$ which \bar{V_{1}},\bar{V_{2}},\bar{V_{3}} \rbra...

Passive motion of an airfoil in the wake a circular cylinder is compared with driven same configuration, through simultaneous measurement both dynamics and surrounding flow field. The passive mounting allows to move transverse (heaving) direction response oncoming forcing, while introducing significant parasitic effects including friction. reproduces important characteristics imperfect motion, ...

This study investigates the transitional wake dynamics of a simultaneously pitching– heaving airfoil in low Reynolds number regime. The transition from Kármán to reverse wakes and subsequent deflection are known take place entirely periodic regime as dynamic heave velocity $\kappa h$ (proportionally, amplitude-based Strouhal $St_A$ ) is gradually increased. However, further increase may result ...

This work presents the Water Energy Point Absorber (WEPA), which is a heaving single-buoy point absorber optimized for specific site off west coast of Sardinia Island. The aim study to present optimization process undertaken identify best configuration in terms performance and cost. carried out thanks simulation tool developed Matlab-Simulink environment verified through commercial software Orc...

Abstract: Empirically based modeling is an essential aspect of design for a wave energy converter. Empirically based models are used in structural, mechanical and control design processes, as well as for performance prediction. Both the design of experiments and methods used in system identification have a strong impact on the quality of the resulting model. This study considers the system iden...

Related Articles Detuned resonances of Tollmien-Schlichting waves in an airfoil boundary layer: Experiment, theory, and direct numerical simulation Phys. Fluids 24, 094103 (2012) Effect of a splitter plate on the dynamics of a vortex pair Phys. Fluids 24, 074110 (2012) Effect of plate thickness on particle deposition velocity onto a face-up flat plate situated parallel to an airflow J. Appl. Ph...