An Explanation of Sail Flow AnalysisIntroduction Stanford Yacht Research (SYR) is currently doing a study in performance analysis on yacht sails through experimental and computational methods. This research is being done to study the flow around sails in a wind tunnel and to validate computer results against experimental results. Those involved with the present research include: Dr. Dr. Tyler Doyle, Ph.D. student at Stanford University Sriram Shankaran, Ph.D. student at Stanford University Steve Collie, Ph.D. student at University of Auckland Jean-Edmond Coutris, Graduate student at Stanford University Brendan Abbott, SYR intern - undergraduate at Webb Institute Daniela Hanson, SYR intern - undergraduate at Webb Institute Center for Turbulence Research (CTR) Aero-Astro Department NASA Ames Research Center Sail Design Working toward designing more and more efficient sails throughout history, many methods have been employed. From intuition, prototype sails can be built to test a design and measure its effectiveness. Reaching Twist
HOW TO SAILHOT NEWS: After 58 years of production, and 38,000 sailboats, the MacGregors are retiring. Production of the MacGregor 26 has been discontinued. Our daughter and son in law, Laura and Paul Sharp, have opened a new boat building business in Stuart, Florida, and are manufacturing a boat similar to our MacGregor 26. For all of the details about our retirement, and for the full MacGregor 26 website, click here. THE MOST IMPORTANT THING YOU MUST KNOW IS THE DIRECTION FROM WHICH THE WIND IS BLOWING. SAILING DOWNWIND. Sailing downwind This is no more complex than letting a balloon blow with the wind. Just get the sails out there at right angles to the wind. SAILING ACROSS THE WIND. Sailing across the wind Basically, the sails are diverting wind from its original direction toward the rear of the boat. SAILING INTO THE WIND. Sailing into the wind Notice the smooth wind flow across the sails, and the lack of turbulence. You can't sail straight into the wind. Zig zagging (tacking) into the wind 1.