Rob
You may find this test data of interest:
This covers the condition with a rig pitching and rolling. Cl ranges between 1.56 and and 1.68. This is a high aspect rig and modelled sails are rigid.
You can play with this simple empirical model if to get similar ranges:
I can get JavaFoil to produce similar values using full sails.
Maximum lift coefficients as high as 1.5 give good correlation with actual measured boat performance.
Rick
On 07/11/2015, at 9:32 AM, robriley@rocketmail.com [harryproa] <harryproa@yahoogroups.com.au> wrote:
I really think that 1.5 is impossible for a soft sail. simply impossible
this because the shape can never be consistent because of the nature of cloth
add to that they are encumbered with the mast and rigging which influences the flow
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Posted by: Rick Willoughby <rickwill@bigpond.net.au>
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