Subject: Re: [harryproa] Re: 15 micron finish |
From: "=?UTF-8?B?QmrDtnJu?= bjornmail@gmail.com [harryproa]" <harryproa@yahoogroups.com.au> |
Date: 9/6/2016, 10:35 AM |
To: harryproa@yahoogroups.com.au |
Reply-to: harryproa@yahoogroups.com.au |
And I understand dolphins have 'dimpled' skins?On Tue, Sep 6, 2016 at 11:31 AM, Björn bjornmail@gmail.com [harryproa] <harryproa@yahoogroups.com.au> wrote:Mike wrote:
> Clearly, the smoother the finish, the faster the boat is going to be.
Yes it seems that's the case for boats.
But I've seen in other areas that a rough surface might be an
advantage. Intake ports in cylinder heads. Or the classic example of
golf balls.
I guess it depends on the fluid, speed, size e.t.c. The reynolds number.
Sea slide looks interesting, especially if it lasts.
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