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Leo Lazauskas
Senior Member
·
From Adelaide, South Australia
Joined
Jan 3, 2002
Last seen
Sep 8, 2026
Posts
2,710
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Leo Lazauskas
replied to the thread
Navier Stokes Solved -
.
A huge number of computational methods suddenly become more reliable. But that doesn't necessarily mean a Great Leap Forward (tm) for...
Sep 8, 2026
Leo Lazauskas
replied to the thread
SWATH resistance predictions using Michlet
.
No, I haven't looked into the actual effects of the filleting for actual SWATH hulls. That sounds much more like a CFD task or actual...
Aug 1, 2026
Leo Lazauskas
replied to the thread
SWATH resistance predictions using Michlet
.
No worries. The Lockheed Martin data is good enough.
Jul 31, 2026
Leo Lazauskas
replied to the thread
SWATH resistance predictions using Michlet
.
A few weeks ago I started preparing videos on wave cancellation. In one of them I show the wave patterns, velocity potential and...
Jul 31, 2026
Leo Lazauskas
replied to the thread
Tearing Velocity?
.
In conclusion... I find the patterns beautiful and I have been trying to combine Kelvin wakes (including perturbation velocity...
Jul 29, 2026
Leo Lazauskas
replied to the thread
Tearing Velocity?
.
It is a "phenomenon" associated with all vessels that create a disturbance. :) I like baeckmo's answer... Firstly, there definitely is...
Jul 29, 2026
Leo Lazauskas
replied to the thread
Tearing Velocity?
.
"Trends" will become apparent when I create scaled animations. Then you will be able to see how the different velocity components change...
Jul 28, 2026
Leo Lazauskas
reacted to
Ad Hoc's post
in the thread
Tearing Velocity?
with
Like
.
Probably not...but a simple “trend”….for an engineer (not a mathematician) is sufficient :p I understand that….but a different/change...
Jul 28, 2026
Leo Lazauskas
reacted to
baeckmo's post
in the thread
Tearing Velocity?
with
Like
.
I don't see any reason for a particular name for the +-y composants here; if anything, it adds confusion. PhilSweet expressed it better...
Jul 28, 2026
Leo Lazauskas
reacted to
philSweet's post
in the thread
Tearing Velocity?
with
Like
.
I (tried to) read the plasma physics article on Tearing Mode Instabilities in magnetohydrodynamics (for about ten minutes). The velocity...
Jul 28, 2026
Leo Lazauskas
replied to the thread
Tearing Velocity?
.
Of course you have never observed them.. The plots are not wave elevations. They are the velocity components in the x, y and z...
Jul 24, 2026
Leo Lazauskas
replied to the thread
Tearing Velocity?
.
"The purpose of computation is insight, not numbers.", Richard Hamming, Numerical Methods for Scientists and Engineers, 1962. Suppose...
Jul 24, 2026
Leo Lazauskas
reacted to
Doug Halsey's post
in the thread
Tearing Velocity?
with
Like
.
Hi Leo. Welcome back! Did you ever do any drag calculations on the circular wing? There's a current thread here dealing with low aspect...
Jul 23, 2026
Leo Lazauskas
reacted to
Ad Hoc's post
in the thread
Tearing Velocity?
with
Like
.
No, I haven't. I've also not observed the "issues" you note in your fancy colour plots either, when performing physical model testing...
Jul 23, 2026
Leo Lazauskas
reacted to
jehardiman's post
in the thread
Tearing Velocity?
with
Like
.
Nah, no real grievance with over precise numerical calculations... usually because I'll tack on "+5/-3 percent" or some such... I...
Jul 23, 2026
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