More questions from Fluids Engineering

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Abbas Ahsan

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Feb 8, 2013, 1:34:12 AM2/8/13
to David Nobes, fluids-en...@googlegroups.com
Dr. Nobes,

As Fluids Engineering is working on the conceptual design stage, we have some more questions we would like answered:

1. How many cameras will be used during the experiment?


2. How many viewing angles of the tank would you like?


3. Where would you like the focal point of the cameras to be?


4. Should our design accommodate the sand particles in the fluid? For example, adding filters in the drainage system.


5. In the existing setup, was the heat bath used to heat up the enclosure fluid to match the warmer fluid in the tank, or cooling the enclosure fluid to stabilize the temperature of the fluid in the tank? In either case, won’t this result in a mismatch of refractive index between solid and liquid?


6. Could you provide a manual for the heat bath so we can get a better understanding of how it works?


7. Does the gearbox use a belt drive for power transmission, or is there an output gear we mesh with the shaft?


8. Given that the gearbox is provided, would you still like us to perform an analysis on it?


9. Is the weight capacity of the existing mounting frame 100 kg?



Regards

Fluids Engineering

Abbas Ahsan

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Feb 13, 2013, 1:32:50 PM2/13/13
to David Nobes, fluids-en...@googlegroups.com
Dr. Nobes,

I am resending you a list of questions that our group has, in case the first email was lost. We would appreciate it if you could get back to us as soon as you have the chance.

Thanks

Abbas

Abbas Ahsan

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Feb 13, 2013, 2:17:05 PM2/13/13
to fluids-en...@googlegroups.com


---------- Forwarded message ----------
From: David Nobes <dno...@ualberta.ca>
Date: Wed, Feb 13, 2013 at 11:53 AM
Subject: RE: More questions from Fluids Engineering
To: Abbas Ahsan <ahs...@ualberta.ca>, David Nobes <david...@ualberta.ca>
Cc: fluids-en...@googlegroups.com


Abbas,

 

See answers to your questions below.

Sorry for not getting back to you on the questions.

 

DSN

 

-----------------------------------------------------------------------

David S. Nobes PhD, BE(Mech), P.Eng

Associate Professor

Department of Mechanical Engineering

4-31B, Mechanical Engineering Building

University of Alberta

Edmonton, Alberta

CANADA, T6G 2G8

 

ph : (780) 492 7031

fax : (780) 492 2200

email: david...@ualberta.ca

Web : http://websrv.mece.ualberta.ca/ThermoFluids/

-----------------------------------------------------------------------

 

From: Abbas Ahsan [mailto:ahs...@ualberta.ca]
Sent: Wednesday, February 13, 2013 11:33 AM
To: David Nobes
Cc: fluids-en...@googlegroups.com
Subject: Re: More questions from Fluids Engineering

 

Dr. Nobes,

 

I am resending you a list of questions that our group has, in case the first email was lost. We would appreciate it if you could get back to us as soon as you have the chance.

 

Thanks

 

Abbas

On Thu, Feb 7, 2013 at 11:34 PM, Abbas Ahsan <ahs...@ualberta.ca> wrote:

Dr. Nobes,

As Fluids Engineering is working on the conceptual design stage, we have some more questions we would like answered:

1. How many cameras will be used during the experiment?

DSN: mostly we will use 2 cameras in stereo, but will need to use 4 camera for TomoPIV

2. How many viewing angles of the tank would you like?

DSN: The more the better

3. Where would you like the focal point of the cameras to be?

DSN: That is a function of the lens. I would like to have a clear view of the full width of the tank

4. Should our design accommodate the sand particles in the fluid? For example, adding filters in the drainage system.

DSN: A clear up system could be included for particles down to 20um

5. In the existing setup, was the heat bath used to heat up the enclosure fluid to match the warmer fluid in the tank, or cooling the enclosure fluid to stabilize the temperature of the fluid in the tank? In either case, won’t this result in a mismatch of refractive index between solid and liquid?

DSN: No heating \ cooling control of the fluid was employed

6. Could you provide a manual for the heat bath so we can get a better understanding of how it works?

DSN: see the following website for some initial details: http://www.coleparmer.ca/Category/Baths_and_Circulators/213

7. Does the gearbox use a belt drive for power transmission, or is there an output gear we mesh with the shaft?

DSN: there are a number of options you could use here. A tooth belt drive is a good idea.

8. Given that the gearbox is provided, would you still like us to perform an analysis on it?

DSN: YES.  Need to prove that the motor / gearbox is OK for what we want to use it for.

9. Is the weight capacity of the existing mounting frame 100 kg?

DSN: This is not something that we have talked about. A would suggest 300kg as an upper limit.

Regards

Fluids Engineering

 


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