Vacanti Yacht Design LLC FOIL Design and Analysis program provides a Windows CAD user interface and CAD file export for the well known Eppler Analysis code package. Valid for Reynolds Number (Less than 10 million) operation on Virtually all Sail and Power design applications.
If a new keel requires the minimum wetted surface (reduce friction drag) which foil shape do you choose? NACA 63? 64? 00? A new design? Which of these foils is least likely to stall when used as a rudder? Which of these foils would work best as a high speed center board in a tri or cat? Which offers the greatest strength as a centerboard? Which foil to use as a wing mast section for low drag and high strength? Which is the best for a new sailing dinghy centerboard? Which shape is best as a keel bulb? When is a keel or rudder too thick or thin?
ALL of these questions and many more can be answered by the program FOIL using state-of-the-art b-splines to define shapes and proven NASA code (Known as the Eppler Code) for performance prediction. A design cycle would work something like this - A foil is needed to provide the maximum ballast volume in a keel while keeping the wetted surface minimized. Design a foil with a high area coefficient that works over the desired ranges of speed, thickness and chord length. Verify lift and drag characteristics. Export the foil shape as a file to be read by WINGS or LOFT to design the keel. To make foil design easier and faster, the foil shape, fairing curves, area coefficient, position and amount of thickness are ALL updated as a b-spline vertex is moved with the mouse. FOIL computes percent change in Lift, Drag and Lift to Drag Ratio, making it easy to determine the benefit or detriment of each foil shape change relative to its initial shape. Some additional features of FOIL include:
Symetric or Cambered Foils
Spreadsheet Data Editor for reference foil offsets
Calculate Lift, Drag, Turbulence and Separation, Lift to Drag Ratio, Area Coefficient, Relative Velocity, REYNOLDS Number, Bubble Formation
Analyze TRIM TABS effect on LIFT/DRAG etc.
Calculations at 5 Reynolds Numbers and 13 Angles of Attack Scale overall foil thickness
Use Existing NACA or NASA foils as References or starting point to design a new foil
Foil fairing using slope and curvature curve plots.
Auto-Fit NURB splines to existing foil data
High Quality Printed Reports and Plots.
Capture Performance plots as BMP graphics files.
Calculates 48 Offset Values (NACA provides only 26)
Calculate foil performance over Reynolds Numbers between 250,000 and 10 million
Output TXT- Eppler Format, DXF, CDL, or IGES NURB CAD for precision CNC applications in additiuon to printingall offsets and physical characteristics.
Export design files to WINGS and LOFT for complete design capability
... its Model View Controller architecture This winPenPack release contains the 3D models collections (Contributions, KatorLegaz, Scopia, Trees). .... Free download of X-Sweet Home 3D 4.0 rev16
... files of all versions as early as AutoCAD Release 9 and as recent as AutoCAD 2013. It is the fastest multiple-threading CAD drawings viewer available for Microsoft Windows all versions. The software is more than a viewer; it converts DWG, DXF, DWF drawings to image formats such as BMP, JPG, .... Free download of Easy CAD Viewer 2.6
... to analyze data without an Internet connection. Automatic release control: · ProteinID Finder keeps your workspaces, queries and views automatically up-to-date with Uniprot's latest database release. Eliminating problems with old or outdated information. Feedback system: · ProteinID Finder now has integrated feedback system, where you can submit bug reports or .... Free download of ProteinID Finder 1.8.2
... Introducing PolyCAD 9.0: The 9th version release of PolyCAD brings together several long term developments ... for X-Topology surfaces are omitted in this first release of version 9 to allow for further testing, the transformation process has been reviewed and the basic translate, rotate, scale and mirror operations have .... Free download of Pro Yacht 18.104.22.168
... the University of California, Berkeley, and was first released in 1972. Many scientists at Berkeley and other ... SPICE. In 1975, Nagel described the next major release of SPICE, called SPICE2. The core of the ... numerical techniques, and user interfaces. The last major release, SPICE3, came in 1985 with a conversion of .... Free download of AIM-Spice Student 5.6
AutoCAD® Civil 3D® software is a Building Information Modeling. Free download of AutoCAD Civil 3D 2012
Quickly and easily create computer models of geodesic domes.. Free download of DomeMaker 22.214.171.124
A powerful, versatile and easy to use drafting program. Free download of AllyCAD Home Edition 2011
Create great architecture and increase productivity. Free download of Archicad 16