A5079952840- Ship Hydrodynamics and Maneuverability
- Maritime Transport Emissions and Efficiency
- Maritime Navigation and Safety
- Spacecraft and Cryogenic Technologies
- Aerodynamics and Fluid Dynamics Research
- Technology Assessment and Management
- Tribology and Lubrication Engineering
- Scientific Research and Discoveries
- Natural Language Processing Techniques
- Fluid Dynamics Simulations and Interactions
- Sports Performance and Training
- Marine and Coastal Research
- Web Data Mining and Analysis
- Media Influence and Health
- Complex Systems and Decision Making
- Transportation and Mobility Innovations
- Media Studies and Communication
- Sports Dynamics and Biomechanics
- Handwritten Text Recognition Techniques
- Music and Audio Processing
- Fluid dynamics and aerodynamics studies
- Semantic Web and Ontologies
- Financial Distress and Bankruptcy Prediction
- Aerospace Engineering and Energy Systems
- Arctic and Russian Policy Studies
Chalmers University of Technology
2018-2024
RISE Research Institutes of Sweden
2024
SSPA (Sweden)
2017-2020
Stockholm University
2017
Consejo Nacional de Investigaciones Científicas y Técnicas
2009
Universidad Nacional del Centro de la Provincia de Buenos Aires
2009
For the design of sailing vessels, use Dynamic Velocity Prediction Programs is expanding, as naval architects start to consider effects waves and varying wind conditions in order faster, safer more efficient vessels. Many models that predict unsteady hydrodynamic response are available, but for sail aerodynamics, few have been presented, quasi-steady assumption instead commonly used. The aim this paper develop a time-domain model aerodynamics can handle arbitrary motions requires only...
Abstract In this paper, an improved procedure for strongly coupled prediction of sailing yacht performance is developed. The uses 3D RANS CFD to compute the hydrodynamic forces. When a rigid body motion solver and sail force model, along with rudder control algorithm, allows be predicted within software. provides convergence when compared previously published method. grid scheme, partially using overset techniques, means that correct alignment between free surface background ensured even at...
Because of the successful application hydrofoils on America's Cup catamarans in past two campaigns interest foiling sailing craft has boosted. Foils have been fitted to a large number yachts with great success, ranging from dinghies ocean racers. An interesting question is whether one slowest racing boats world, Optimist dinghy, can foil, and if so, at what minimum wind speed. The present paper presents comprehensive design campaign answer questions. includes newly developed Velocity...
Abstract Horizontal T-foils allow for maximum lift generation within a given span. However, the force on T-foil acts symmetry plane of hull, thereby producing no righting moment. It results in lack transverse stability during foil-borne sailing. In this paper, we propose system, where height-regulating flap trailing edge foil is split into port and starboard part, whose deflection angles are adjusted to shift centre effort force. Similar ailerons which help steering aircraft, split-flaps...
The effects of multiple wings interacting and the change in efficiency due to those as well optimal sheeting angles are becoming an important area study with advent wind-propelled ships for goods transport. This research presents a first analysis wind tunnel tests carried out at University Southampton R.J. Mitchell where three subject turbulent flow Reynolds number excess 1 million. A range possible variations ship heading apparent tested taking into consideration blockage geometrical...
Parallel-sided foil sections are used for centerboards and rudders in sailing dinghy classes also struts placed a fluid flow. The objective of this work is to create systematic series parallel-sided be under different conditions, with an emphasis on the dinghies 470, 420 Optimist. loss, surprisingly gain, performance relative 4-digit NACA investigated. A 2D Reynolds-averaged Navier–Stokes solver k-ω SST turbulence model gamma transition criterion. verification study carried out based four...
As a follow up to the Olympic Games, commercially available Finn dinghy rudders were tested determine their hydrodynamic performance. Seven tested, out of nine different rudder models that measured for competition at 2016 thus representing large portion used by sailors. The remaining two could not be since they are semi-custom or custom design manufacture. Each was in seven conditions, selected cover wide range sailing conditions. testing revealed considerable differences, both performance...
Because of the long history Finn Dinghy sailing class, difference between a gold medal and mediocre result often comes down to personal mistakes sailor, or who has most optimised equipment. Regarding latter, class rules permit certain design variations hull, mast, sail rudder. In current contribution, we describe method for developing customised rudder system aimed at optimal performance during Tokyo 2020 Olympics. Based on hydrodynamic analysis existing designs, an improved geometry was...
The purpose of this paper is to design an improved centerboard for the Olympic 470 sailing dinghy upwind. by introducing a composite that makes twist windward when upwind, thereby reducing angle attack hull. results show beneficial up 1.5° possible achieve without compromising strength. According our estimates, utilizing it obtain gain 9 s per race in world cup race.