[esp-r] Re: Query: Spatial resolution
Matthew Wright
matthew.wright at c4ci.eu
Fri Feb 27 15:29:04 GMT 2015
Thanks!
A project to look into.
:-)
Regards
Matt
Matthew Wright MA Physics (Oxon) PGCE
Physicist
-----Original Message-----
From: Joe Clarke [mailto:joe at esru.strath.ac.uk]
Sent: 27 February 2015 13:22
To: matthew.wright at c4ci.eu
Cc: esp-r at lists.strath.ac.uk
Subject: Re: [esp-r] Re: Query: Spatial resolution
Hi Matthew
ESP-r has a facility for 3d conduction modelling implemented by Nahki - see http://www.esru.strath.ac.uk/Documents/PhD/nakhi_thesis.pdf. Perhaps you are the the very person to reactivate this little used feature of ESP-r ;-).
Regards,
Joe
--
Professor J A Clarke
Director, ESRU and BRE Centre of Excellence Mechanical & Aerospace Engineering James Weir Building, Room 8.14f
75 Montrose Street
University of Strathclyde
Glasgow G1 1XJ
email: joe at esru.strath.ac.uk
phone: +44 (0)141 548 3986
mobile: +44 (0)7800903808
On 27/02/2015 11:20, Matthew Wright wrote:
> Hi All,
>
> I think Achim is correct, I am looking for temperature distribution across the glass surface, which I think I will have to use something else for this.
> However, thank you everyone for your contributions, they have been very helpful.
>
>
> Regards
>
> Matt
> Matthew Wright MA Physics (Oxon) PGCE
> Physicist
>
> e: Matthew.Wright at c4ci.eu
> m: +44 (0)7908030742
> p: +44 (0)1823 617166
>
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>
> -----Original Message-----
> From: Achim Geissler [mailto:achim.geissler at intergga.ch]
> Sent: 27 February 2015 09:11
> To: 'Jon Hand'; matthew.wright at c4ci.eu; esp-r at lists.strath.ac.uk
> Subject: AW: [esp-r] Re: Query: Spatial resolution
>
> Hi Jon,
>
> I think not. As far as I understand, Matthew is looking for temperature gradients along the "width and breadth" of a surface, not along its thickness. This, of course, would be standard procedure.
>
> Best
> Achim
>
> -----Ursprüngliche Nachricht-----
> Von: esp-r-bounces at lists.strath.ac.uk
> [mailto:esp-r-bounces at lists.strath.ac.uk] Im Auftrag von Jon Hand
> Gesendet: Freitag, 27. Februar 2015 07:16
> An: matthew.wright at c4ci.eu; esp-r at lists.strath.ac.uk
> Betreff: [esp-r] Re: Query: Spatial resolution
>
>
> Standard feature. Run simulation with save level 3. This records the temperatures at all nodes of all surfaces. You can the plot or animate the temperatures within a surface or do statistical analysis on the data etc.
>
> The exemplar of a trombe wall is a classic case where one might want to look at the conditions in the mass.
>
> Jon Hand
> ________________________________________
> From: Matthew Wright [matthew.wright at c4ci.eu]
> Sent: 26 February 2015 19:06
> To: Jon Hand; esp-r at lists.strath.ac.uk
> Subject: RE: [esp-r] Query: Spatial resolution
>
> HI Jon,
>
> It's an attempt to see real time temperatures in a glazing and aluminium extrusion model, to pick up temperature gradients across the glass.
> This would appear to be against the grain in ESP-r, but I thought I would ask.
> Resolution to 100mm, 10mm or even 3mm would be fantastic.
> I would probably have a steep learning curve in presenting the results, which I guess would have to be post processed to be seen graphically, but a temperature field matrix, is obviously the goal, (not necessarily pretty pictures).
>
>
> Regards
>
> Matt
> Matthew Wright MA Physics (Oxon) PGCE
> Physicist
>
> e: Matthew.Wright at c4ci.eu
> m: +44 (0)7908030742
> p: +44 (0)1823 617166
>
> P Please think before you print !
>
> This e-mail including attachments is confidential, may be covered by legal professional privilege and is intended for the addressee only. If you are not the intended recipient you are prohibited from printing, copying or distributing it.
>
> If you have received this e-mail in error, please notify the sender immediately by e-mail, fax or by telephone and delete this e-mail from your system. Thank you.
>
> C4Ci Ltd Registered Address: (Registered in England No. 06455265) Atticus House 2 The Windmills Turk Street Alton Hampshire GU34 1EF UK
>
> -----Original Message-----
> From: Jon Hand [mailto:jon at esru.strath.ac.uk]
> Sent: 26 February 2015 16:55
> To: matthew.wright at c4ci.eu; esp-r at lists.strath.ac.uk
> Subject: RE: [esp-r] Query: Spatial resolution
>
>
> Users are in charge of defining the CFD domain gridding (and we are just testing out code that supports multiple CFD domains in a model). The current implementation the grid the user defines is used throughout the assessment. It is not possible to alter the definition of the grid during the assessment, however boundary conditions and wall functions are re-evaluated at each timestep and of course heat into cells picked up during the assessment is tracked.
>
> The ground model would have a fixed definition of the grid and the thermophysical properties of associated entities. So one could not have 'mud' in the ground at one time of the assessment and dust at a different point of the assessment with the current implementation. Similarly a temporary leak in a pipe in the ground could not be corrected during an assessment.
>
> And if you really are passionate about altering how ESP-r works it is distributed under GPL and you can alter the code and you can run it in a single-step debug mode to see exactly how the solution is progressing and test out new ideas.
>
> And I have created ESP-r models where the extrusions of the facade are explicitly treated as zones so some aspects of geometry of facades could be treated at a user defined level. There is also a 2D and 3D conduction model - but almost no one remembers how to use that.
>
> Can you tell us more about [fine meshed spatial grid]?
>
> Regards, Jon Hand
> ________________________________________
> From: esp-r-bounces at lists.strath.ac.uk
> [esp-r-bounces at lists.strath.ac.uk] on behalf of Matthew Wright
> [matthew.wright at c4ci.eu]
> Sent: 26 February 2015 15:35
> To: esp-r at lists.strath.ac.uk
> Subject: [esp-r] Query: Spatial resolution
>
> Hi Jon/all,
>
> I am aware that the CFD, and an old ground heat flow, simulation modules resolve a detailed spatial grid.
>
> Firstly
> Am I correct in my understanding that ESP-r does not do this generally?
>
> Secondly
> If analysing glazing or similar items, is it possible to create a time dependent, fine meshed spatial grid in ESP-r?
>
> Thanks in advance for any advice!
>
> Regards
>
> Matt
> Matthew Wright MA Physics (Oxon) PGCE
> Physicist
>
> e: Matthew.Wright at c4ci.eu
> m: +44 (0)7908030742
> p: +44 (0)1823 617166
>
> P Please think before you print !
>
> This e-mail including attachments is confidential, may be covered by legal professional privilege and is intended for the addressee only. If you are not the intended recipient you are prohibited from printing, copying or distributing it.
>
> If you have received this e-mail in error, please notify the sender immediately by e-mail, fax or by telephone and delete this e-mail from your system. Thank you.
>
> C4Ci Ltd Registered Address: (Registered in England No. 06455265) Atticus House 2 The Windmills Turk Street Alton Hampshire GU34 1EF UK
>
>
>
>
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