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Subject: Re: Bubbles -- From: ingo
Subject: Re: CFD shareware/demo for Win95? -- From: Richard Bettis
Subject: Re: Bubbles -- From: Rikard GEBART
Subject: PARADOXE -- From: Jeanfaivre Laurent
Subject: Re: CFD shareware/demo for Win95? -- From: Gary Freeman
Subject: Re: CFD shareware/demo for Win95? -- From: "Rick Palmer"
Subject: US-Midwest-Director Tech Transfer & Business Dev-Analytical Instrumentation -- From: "Adam Zak"
Subject: Re: What's in a Job Title ? -- From: "G. Shane J. Lafreniere"
Subject: Neet Coriolis Flowmeter Advice? -- From: "B.R.H."

Articles

Subject: Re: Bubbles
From: ingo
Date: Mon, 09 Dec 1996 08:20:16 +0100
Per Nielsen wrote:
> I would like to know if anyone knows about references for
> bubble injection/growth/displacement in a liquid filled
> porous medium. In particular experimental work would be
> of interest.
a nice book in german:
Brauer H (1971) "Grundlagen der Einphasen- und Mehrphasenstroemungen" 
Grundlagen der chemischen Technik, Verlag Sauerlaender.
ingo
--
 =>  mailto:ingo@ifd.mavt.ethz.ch
 =>  http://spartakus.ethz.ch/~ingo/index.html
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Subject: Re: CFD shareware/demo for Win95?
From: Richard Bettis
Date: Mon, 09 Dec 1996 10:57:22 +0100
In article: <01bbe556$96902d80$5e5af6c8@eu>  "Jairo"  
writes:
> 
> Does anyone know where I can find a shareware/free/demo CFD software for
> Windows 95, using interative graphical interface where is not necessary to
> know or have to
> compile to Fortran, C++ or any other language??
> 
The current state of the art of Wintel PCs (i.e machines that run Win95) and 
CFD software is such that you are unlikely to be able to do any serious CFD 
work on one. Maybe a bit of sub-model development (but then you'd need to get 
into the code, re-compile it and stuff).
CFD for real applications needs more computing power than current Wintel 
machines can deliver. Otherwise you need to make so many simplifications that 
all you get are some "really neat" pictures of results that are probably bogus. 
Such software (if it is available, and I doubt if it is....) might tell you 
something about how CFD works. I would question using it to make decisions 
which have repercussions in the real world.
-- 
+=============================================================================+
|      Richard Bettis         |  "I make no warranty with respect to this     |
|   |   statement and disclaim any implied/explicit |
|                             |   suggestions of usefulness for any purpose"  |
+=============================================================================+
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Subject: Re: Bubbles
From: Rikard GEBART
Date: Mon, 9 Dec 1996 12:48:08 GMT
Per Nielsen wrote:
> 
> Hi there,
> 
> I would like to know if anyone knows about references for
> bubble injection/growth/displacement in a liquid filled
> porous medium. In particular experimental work would be
> of interest.
> 
> In particular review articles would be of interest ( but
> any paper on the subject would be of interest).
> 
You could start by looking at the work of Staffan Lundstrom who did his
PhD on "Void formation and transport in porous media". I do not
have the exact reference available at the moment but you could 
send an email to hans.hansson@sicomp.se and ask for a copy.
Among the things that he studied are the formation and transport of a
large number of bubbles in a real porous medium. He has also made a
detailed study of the behaviour of bubbles in capillary tubes as
a model of a porous medium. This includes a detailed measurement of
the forces necessary to move the bubbles and the dissolution of bubbles
in the surrounding fluid.
There are also a number of papers published in Journal of Fluid Mechanics
starting with a paper by Bretherton (I think) in the 60s (I believe) that
treats the motion of bubbles in capillary tubes. This includes the influence
of surface active contaminants in the fluid (Marangoni effects).
Hope this helps,
Rikard Gebart
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Subject: PARADOXE
From: Jeanfaivre Laurent
Date: Mon, 09 Dec 1996 17:22:31 +0100
Bonjour a tous,
Je recherche des paradoxes scientifiques ! Je m'explique : la science
permet souvent d'etablir des resultats qui defient completement le sens
physique voire le bon sens commun. Par exemple, quel non scientifique
irait s'imaginer qu'un avion est plus petit en vol qu'au sol ?
Par consequent, quel que soit votre domaine, si vous connaissez de pres
ou de loin, des "phenomenes", quels qu'ils soient, qui peuvent paraitre
surprenants au commun des mortels, je vous remercie de me les decrire.
Je recherche d'autre part des pieds-de-nez scientifiques, du type de la
demonstration mathematique (truquee heureusement) de 2=1.
N'hesitez pas a m'envoyer vos suggestions, tout m'interesse ...
Merci d'avance.
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Subject: Re: CFD shareware/demo for Win95?
From: Gary Freeman
Date: Mon, 09 Dec 1996 10:59:07 -0600
Richard Bettis wrote:
> 
> In article: <01bbe556$96902d80$5e5af6c8@eu>  "Jairo" 
> writes:
> >
> > Does anyone know where I can find a shareware/free/demo CFD software for
> > Windows 95, using interative graphical interface where is not necessary to
> > know or have to
> > compile to Fortran, C++ or any other language??
> >
>
Ricard Bettis replied:
> The current state of the art of Wintel PCs (i.e machines that run Win95) and
> CFD software is such that you are unlikely to be able to do any serious CFD
> work on one. Maybe a bit of sub-model development (but then you'd need to get
> into the code, re-compile it and stuff).
> 
> CFD for real applications needs more computing power than current Wintel
> machines can deliver. Otherwise you need to make so many simplifications that
> all you get are some "really neat" pictures of results that are probably bogus.
> 
> Such software (if it is available, and I doubt if it is....) might tell you
> something about how CFD works. I would question using it to make decisions
> which have repercussions in the real world.
In the surface hydraulics/hydrology and groundwater fields a PC
can solve "real world" problems if not too large or complex.  These
can give good answers as well as show "really neat" pictures.  Check
out the software page of http//:hlnet.wes.army.mil or 
http://www.ecgl.byu.edu for pc software demos that can solve CFD
problems.
P.S. We also use our Cray computers and numerous workstations for 
complex and large problems!!
Gary E. Freeman                 freeman@hl.wes.army.mil
CEWES-HW-R                      
3909 Halls Ferry Rd.		Any opinions are my own.  They may or 
Waterways Experiment Station    or may not be shared by the US Army   
Vicksburg, MS  39180	        Corps of Engineers - or by anyone else.
-----------------------------------------------------------------------
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Subject: Re: CFD shareware/demo for Win95?
From: "Rick Palmer"
Date: 9 Dec 1996 18:09:47 GMT
Jairo  wrote in article
<01bbe556$96902d80$5e5af6c8@eu>...
> Does anyone know where I can find a shareware/free/demo CFD software for
> Windows 95, using interative graphical interface where is not necessary
to
> know or have to
> compile to Fortran, C++ or any other language??
> 
> Thanks in advance.
> 
> Jairo L. Soares
> soares@hipernet.com.br
Jairo,
	If you're looking for a basic one-dimensional solution to open channel
computational fluid dynamic problems then check out Flow Pro by ProSoft
Apps.  It's a useful program for calculating and plotting water surface
profiles.  You can download it for a free evaluation at
.  Let me know if I can answer any
questions.
Regards,
Rick
-- 
________________________________________
Rick Palmer                                 ProSoft Apps
Professional Software for Engineering Applications
psapps@europa.com                       
http://www.europa.com/~psapps/      
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Subject: US-Midwest-Director Tech Transfer & Business Dev-Analytical Instrumentation
From: "Adam Zak"
Date: 9 Dec 1996 21:14:39 GMT
Position Description
Director, Technology & New Business Development
Analytical Instrumentation Products
Company Background
Our client is a highly successful international manufacturer of sensory
instrumentation products utilized for measurement in all types of liquid
process applications.  These products, recognized world-wide for
outstanding performance and reliability, employ state-of-the-art
electrochemical and optical sensing technologies, coupled with high-quality
electronic instrumentation (microprocessor-based with embedded software). 
The company, a subsidiary of  a well-respected international technology
organization, is located in modern research & manufacturing facilities in a
major Midwestern metro area.
Position
The Director of Technology & New Business Development will provide
leadership and direction to the company's engineering resources in the
areas of new product development, manufacturing engineering and applied
research.  Primary disciplines involved are electronic, software,
mechanical and sensor engineering.  The Director chairs the New Product
Committee (NPC) and coordinates,  with the International Marketing
Director, the planning and execution of global product development.  The
Director will also fulfill the strategic business development function, and
in this capacity will seek out and investigate other potential sources of
new business: acquisitions, partnerships, strategic alliances, etc.  The
Director will manage a Technology Department of  35 individuals (full
budgetary and capital spending responsibility) and will also manage
contract development activities with outside vendors.  Reports to company
President.
Requirements
We seek a highly motivated, creative and entrepreneurial individual, with
outstanding technical expertise in analytical/sensory instrumentation. 
Ideal candidate will be hands-on, with demonstrated track record of getting
things done, an individual who can translate ideas into profitable,
value-added business initiatives.  Must have: outstanding interpersonal and
communications skills; strong understanding of electronics, mechanics &
software (and progressive utilization of current technologies in these
areas); strong project management skills; expertise in managing a
concurrent, team-based cradle-to-grave engineering environment
(development, production, QA); and, a decision-making style that
effectively balances the need for speedy execution against highest quality
standards.   Candidate will also be sensitive to budgetary issues,
intimately familiar with TQM philosophies and ISO 9001 certification, and
the CIP processes involved. Minimum BSEE, BSME, BSChE or BS software
development required.
Compensation
Package includes base salary, bonus, benefits.   Moving & relocation as
appropriate.
If responding via e-mail, please incorporate resume into your message using
ASCII characters only.  Please e-mail to azak@Executive-Search.com for
prompt reply.
-- 
Adams & Associates International
Executive Search Consultants
463-D W. Russell St.
Barrington (Chicago)  IL  60010  USA
847-304-5300   FAX  847-381-2215
Internet:  azak@Executive-Search.com
(use for reply -ASCII only- to all postings)
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Subject: Re: What's in a Job Title ?
From: "G. Shane J. Lafreniere"
Date: Mon, 09 Dec 1996 20:03:23 -0500
Nägel wrote:
> 
> John H. wrote:
> 
> > One who does Drafting via CAD is a CAD Technician.  A person on a
> > Survey Crew is a Survey Crewman (composed of an Instrument man, a
> > Rodman and sometimes a Chainman - NOTE:  replace person in place of
> > MAN to be politically correct!)
> 
> I don't like the sound of technician, it makes me feel like I have a
> headset on and saying "can I take your order, and would you like me to
> include our free catalog"  I've also heard the term CAD Operator but
> that's even worse.
> 
> Looking at my collage diploma (which was only a 2 year course) it
> clearnly states "Commercial Engineer".  I've been calling myself that
> for years and nobody has gave me a hard time about it,...... yet....
Nagel,
Well, good thing you not in Ontario, Canada, or any other province for
that matter.
Within Canada, it is a provincial and federal offence to use the term
'engineer' in your job title unless you are a licenced practioner.
Canada passed the Professional Engineers Act in 1990, and along with the
Ritual Calling of an Engineer, (if you notice a Canadian engineer with a
battered Iron ring on their working hand...) the job title, whether
working for a company, or on your own private business card will not
allow you or your company to use those terms.
As well, being a self-governing, self regulated (within provincial
boundaries), there are also different levels of 'Service' or licences
that can be obtained.  These range from a Temp Licence, to a "Consulting
Engineer" title.
There is a rather lengthy, formal process to be followed to obtain a
licence (which I'm currently doing) and be able to practice within
Canada as a Professional Engineer.
  With this extra work, comes extra responsibility.  All practicing
Engineers have special Certificates and Liability insurance either at
the personal level, or at the employer-company level.
Hence,  not only can a skilled person who may do a similiar job in
Canada NOT use an Engineering title, but those who do need special
Licences to practice.
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Subject: Neet Coriolis Flowmeter Advice?
From: "B.R.H."
Date: 10 Dec 1996 06:36:11 GMT
Multivariable measurement and control is gaining in importance.  On-line
measurement and control of product mass flow, density, temperature, %
solids, and viscosity improves product quality.  Coriolis flowmeters are
being successfully applied for the measurement of these process parameters.
 I have more than 15 years experience applying this technology for the
development of new processes.  If you have questions on the use of these
instruments, contact me by e-mail at masster1@ix.netcom.com.
BRH
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