6533b7d7fe1ef96bd1267ba3

RESEARCH PRODUCT

A New Systematic Series of Foil Sections with Parallel Sides

Lars LarssonAdam PerssonAntonio MancusoAntonio Saporito

subject

Flow (psychology)low Reynolds numberOcean EngineeringGeometry02 engineering and technology01 natural sciencesBézier curves010305 fluids & plasmascenterboardlcsh:Oceanographysymbols.namesakegamma transition criterionlcsh:VM1-989parallel-sided0103 physical sciencesFluid dynamicssailingTrailing edgeCADlcsh:GC1-1581Settore ING-IND/15 - Disegno E Metodi Dell'Ingegneria IndustrialeWater Science and TechnologyCivil and Structural EngineeringMathematicsBézier curveSeries (mathematics)Turbulencelcsh:Naval architecture. Shipbuilding. Marine engineeringReynolds numberRadiusRudder021001 nanoscience & nanotechnologyNACAsystematic investigationsymbols0210 nano-technology

description

Parallel-sided foil sections are used for centerboards and rudders in sailing dinghy classes and also for struts placed in a fluid flow. The objective of this work is to create a systematic series of parallel-sided sections to be used under different conditions, with an emphasis on the sailing dinghies 470, 420 and Optimist. The loss, and surprisingly the gain, in performance relative to 4-digit NACA sections are also investigated. A 2D Reynolds-averaged Navier&ndash

10.3390/jmse8090677http://dx.doi.org/10.3390/jmse8090677