Shallow-Water Performance Prediction: Hybrid Approach of Model Testing and CFD Calculations

2020 ◽  
pp. 63-82
Author(s):  
Maxime Garenaux ◽  
Arie de Jager ◽  
Hoyte C. Raven ◽  
Christian Veldhuis
Keyword(s):  
Shallow Water ◽  
Performance Prediction ◽  
Hybrid Approach ◽  
Model Testing

Experimental Validation of a New Shallow Water CALM Buoy Design

2013 ◽  
Author(s):  
A. Neil Williams ◽  
Williams G. McDougal
Keyword(s):  
Shallow Water ◽  
Experimental Validation ◽  
Numerical Models ◽  
Water Environment ◽  
Model Testing ◽  
Model Tests ◽  
Hydrodynamic Efficiency ◽  
Shallow Water Environment

This paper presents an overview of the model testing of a new turret-type CALM buoy concept developed by WISON for shallow water (20m–80m) applications. In the WISON design the outer body of the buoy is hexagonal, a geometry that allows for ease of fabrication while retaining hydrodynamic efficiency. The overall objective of the model tests was to demonstrate the performance of this new design for a typical shallow water environment under both operating and survival conditions. Additionally, the model tests were intended to provide data to calibrate the numerical models for buoy motions and line tensions used in the design, and to give guidance regarding the suitability of the buoy freeboard and deckhouse arrangement.

A hybrid approach for estimating range-dependent properties of shallow water environments

2014 ◽  
Vol 136 (4) ◽  
pp. 2120-2120
Author(s):  
Michael Taroudakis ◽  
Costas Smaragdakis
Keyword(s):  
Shallow Water ◽  
Hybrid Approach

Innovative Ice Protection for Shallow Water Drilling: Part II — SIB Model Testing in Ice

2008 ◽  
Author(s):  
Arne Gu¨rtner ◽  
Ove Tobias Gudmestad
Keyword(s):  
Shallow Water ◽  
Conceptual Design ◽  
Caspian Sea ◽  
Companion Paper ◽  
Model Testing ◽  
Model Tests ◽  
Full Scale ◽  
Ship Model ◽  
Water Developments ◽  
Broken Ice

Model tests on the Shoulder Ice Barrier (SIB) were performed in the large ice tank of the Hamburg Ship Model Basin (HSVA) during July 2007. The concept of the SIB has previously been presented in a companion paper under the same title at the OMAE 2006 (Gu¨rtner et al., 2006). Model tests were performed to investigate the conceptual design and force conditions under ice impact. Design conditions for the Northern Caspian Sea were assumed for the model tests. The characteristic shoulder sections’ inclination has been varied to investigate their contribution towards stabilizing broken ice and to prevent ice from over-riding. Ice up-riding onto the barrier contributes towards increased vertical forces. The global vertical forces showed to be higher than the global horizontal forces, and in particular when ice grounding was observed. Even under extreme rubble heights of up to 9.4 m (full scale), ice overtopping the structure was effectively prevented. The SIB showed the potential to be utilized as ice protection structure for future shallow water developments.

scholarly journals Real-Time Hybrid Model Testing of a Braceless Semi-Submersible Wind Turbine: Part I — The Hybrid Approach

2016 ◽  
Author(s):  
Thomas Sauder ◽  
Valentin Chabaud ◽  
Maxime Thys ◽  
Erin E. Bachynski ◽  
Lars Ove Sæther
Keyword(s):  
Wind Turbine ◽  
Real Time ◽  
Physical Model ◽  
Hybrid Model ◽  
Hybrid Approach ◽  
Physical Modelling ◽  
Short Review ◽  
Ocean Basin ◽  
Model Testing ◽  
Aerodynamic Load

This article presents a method for performing Real-Time Hybrid Model testing (ReaTHM testing) of a floating wind turbine (FWT). The advantage of this method compared to the physical modelling of the wind in an ocean basin, is that it solves the Froude-Reynolds scaling conflict, which is a key issue in FWT testing. ReaTHM testing allows for more accurate testing also in transient conditions, or degraded conditions, which are not feasible yet with physical wind. The originality of the presented method lies in the fact that all aerodynamic load components of importance for the structure were identified and applied on the physical model, while in previous similar projects, only the aerodynamic thrust force was applied on the physical model. The way of applying the loads is also new. The article starts with a short review (mostly references) of ReaTHM testing when applied to other fields than marine technology. It then describes the design of the hybrid setup, its qualification, and discusses possible error sources and their quantification. The second part of the article [1] focuses on the performance of a braceless semi-submersible FWT, tested with the developed method. The third part [2] describes how the experimental data was used to calibrate a numerical model of the FWT.

scholarly journals Average acoustic field in shallow water I: Active sonar performance prediction

1994 ◽  
Vol 96 (5) ◽  
pp. 3330-3330
Author(s):  
Ji‐Xun Zhou ◽  
Xue‐Zhen Zhang ◽  
Peter H. Rogers ◽  
Gary W. Caille
Keyword(s):  
Shallow Water ◽  
Acoustic Field ◽  
Performance Prediction ◽  
Active Sonar

Underwater vehicle manoeuvring: performance prediction tool in constrained and shallow water

2019 ◽  
Author(s):  
Francois Petillon ◽  
Camille Yvin ◽  
Xavier Dal Santo ◽  
Jean-Jacques Maisonneuve
Keyword(s):  
Shallow Water ◽  
Performance Prediction ◽  
Underwater Vehicle ◽  
Prediction Tool
Sign in / Sign up

Export Citation Format

Share Document