Subject: Advanced Concepts and Techniques in Thermal Modelling - Call for Papers
From: Michel ELHAYEK
Date: Tue, 10 Dec 1996 11:04:33 +0100
First Announcement - Call for Papers
Advanced Concepts and Techniques in Thermal Modelling
Eurotherm Seminar N.53
October 8-10, 1997
Faculte Polytechnique de Mons, Mons, Belgium.
The deadlines are :
Abstracts due : February 14, 1997
Final manuscripts due : June 13, 1997
More details on the Web at :
http://stecwww.fpms.ac.be/EURO53/
or by e-mail to :
euro53@stecsgi.fpms.ac.be
Subject: Is this ultrasonic ?
From: edlincol@sover.net (Ed Lincoln)
Date: Wed, 11 Dec 1996 01:59:24 GMT
Need some advise....I need to hear a leaking valve. It is within a 6
inch sphere of fuel oil, ( this is a gate valve ) and the velocity is
about 4 feet per second at the leak. The leak is a .01 inch
diameter pin hole. I will be using a scope, preamp, and mic.
But .....at what frequency ? And what kind of preamp ?
AND assuming a "quiet " test atmosphere, how difficult will it be to
see the trace from the resonate and sub frequencys?
Indoor Air Quality
Lots of Information at our Web Site
http://www.sover.net/~edlincol
Edward P. Lincoln, Lincoln Technology
Subject: Re: vortex ring velocity
From: Rikard GEBART
Date: Wed, 11 Dec 1996 11:03:02 GMT
Arkadi Berezovski wrote:
>
> Hi there,
>
> I'm looking for well documented experimental results on vortex ring
> translation velocity. If somebody can provide me with any information
> on this, I'd be extremely grateful.
> Thanks in advance.
>
> Arkadi Berezovski
>
> berez@ioc.ee
I know that I read a paper about this in connection to density interfaces.
I cannot remember the name of the author but it can have been Hopfinger
or Linden. The paper appeared in JFM (that I am sure about) and the year
must have been between 1975-1987 (cannot be more specific than that).
You may find the exact reference if you look in the book
Turner, J.S., Buoyancy Effects in Fluids
Cheers,
Rikard
