That portion of the analysis is being handled by http://www.stthomas.edu/technology/Faculty/sparrowpage.htm ...anyone here ever worked with him or know his works?
Kirk
Kirk B Olson
Senior Principal Engineer
HEII, Inc.
Yep, silicone - I need to re-read before hitting the "reply" button...sorry.
Right now, we are running experiments using Helium and CO2 - we need to run quite high velocities/volumes, as you have thought would be necessary. Temperature uniformity is an issue for us - we have been desiging and...
TTFN,
In the current systemm the fluid is introduced into a thin walled silicon balloon - we will use the same delivery system with our new fluid, gas. Yes, it is problematic - at best. Diffuser design for the gas is proving to be tightly coupled with the other parameters perviously mentioned...
In the end, yes. The current system we have designed uses water at an elevated temperature to cause neucrosis in the tissue - there is a temperature vs. time. vs. pressure model that we know works for water, based on modeling and testing...we are in the process of trying to redesign the system...
jmw & 25362 - thank you for the information, I have already looked at the website and have begun the search for books by Holman.
Ultimately, I will have to model the heat transfer from the selected gas through human tissue and try to calculate the depth of neucrosis for varying temperatures and...
[THREAD HIJACK ON...]
It seems as though the question that I asked has resulted in a quasi-political debate on the "best" unit...I wish that is what I had asked originally, then I would have felt I made a contribution to this board...
[THREAD HIJACK OFF...]
Kirk
Kirk B Olson
Senior Principal...
That's what I get for pulling values from a table - I had input them into a spreadsheet had missed another needed conversion to get the numbers into Pa.s. Thank you for the "knudge"!
Kirk
Kirk B Olson
Senior Principal Engineer
HEII, Inc.
This is a bit out of my area:
For air @ 80F:
d = 1.5mm (dia lumen)
L = 15cm (lumen length)
mu = 2.07 Pa.s
rho = 0.9996 kg.m^3
V = 1 m/s
Re = (rho * V * d)/ mu
Re = 0.00072 - is that really right?
Q = (V * pi * d * d)/4
Q = 1.77E-06 cc/min
That would mean a pressure loss of:
delatP = (128...
Chris,
You are correct, I do not have access to Feature Works. Thank you for the help - I would like to send you a file, but I can not find an e-mail address or a button that sends an e-mail to you in your profile. Would you please ping me @ kirk.olson@heii.com, please?
Thank you.
Kirk B...
Thanks for the responses, I figured that I was pretty much out of luck.
I did call our support group - they mentioned a "feature retrival" add-in that I do not have. Does anyone have this add-in? What kind of success rate have you have at recreating features from .IGS and...
I just recieved some 2004 parts and an assembly from a client, and as you have probably guessed by the title line, I have a down version - 2003. Has anyone successfully been able to make a backwards compatability translator?
I have opened parasolids and .IGS files into 2003 from the 2004 part...
