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von fechner
19 Mai 2022, 13:22
Forum: Delphin
Thema: Adding a new Material in the Database
Antworten: 1
Zugriffe: 1123

Re: Adding a new Material in the Database

Hello,

The model parameter should only be used in the case you have your model for moisture storage function. If you create your storage function by data sets you don't need this sections.
von fechner
29 Mär 2022, 14:46
Forum: Delphin
Thema: Anisotropic modelling
Antworten: 1
Zugriffe: 1357

Re: Anisotropic modelling

Hello, The anisotropic modelling is not fully implemented. We don't have a tutorial and also no possibilities for setting properties in GUI. In order to set the directions you need to set a parameter in the assignment area of the project file. Here an example: <Assignment type="Material" l...
von fechner
28 Feb 2022, 16:02
Forum: Delphin
Thema: calculating surface convective heat transfer coefficient
Antworten: 3
Zugriffe: 10561

Re: calculating surface convective heat transfer coefficient

Ok, you can find an explanation of all output quantities in the output tutorial:
see here: https://www.bauklimatik-dresden.de/delp ... for_fluxes
von fechner
25 Feb 2022, 15:10
Forum: Delphin
Thema: calculating surface convective heat transfer coefficient
Antworten: 3
Zugriffe: 10561

Re: calculating surface convective heat transfer coefficient

Hello, It depends on the selected kind. For kind 'Exchange coefficient', the exchange coefficient is constant. For the kind 'Boundary layer' we use the following function: h = h0 + c * v ^ e v is the air velocity. h0, c and e are coefficients. Here is a picture of the corresponding boundary conditio...
von fechner
25 Feb 2022, 15:05
Forum: Delphin
Thema: The unit conversion in the initial conditions of Delphin model
Antworten: 1
Zugriffe: 3545

Re: The unit conversion in the initial conditions of Delphin model

Hello,

Salt mass density means salt crystals. kg/m3 means kg salt crystals per m3 materials. This unit cannot be converted into molality
von fechner
23 Feb 2022, 10:19
Forum: Delphin
Thema: StorageModel, which one is applied?
Antworten: 4
Zugriffe: 5237

Re: StorageModel, which one is applied?

Hi,

Now I remember. Delphin 6 contains only one storage model. This is similar to the EXTMAIN model from the description.
von fechner
22 Feb 2022, 09:28
Forum: Delphin
Thema: StorageModel, which one is applied?
Antworten: 4
Zugriffe: 5237

Re: StorageModel, which one is applied?

Hello,

What do you mean with 'Storage model'?
von fechner
09 Feb 2022, 16:15
Forum: Delphin
Thema: Moisture source issue
Antworten: 6
Zugriffe: 6285

Re: Moisture source issue

Hello, I would prefer the air change model. The other one is a simplification for calculating condensation due to air flow through a structure. I will send you some presentation slides with further explanations by email. May you can send me your project (as project package) so I can have a own look ...
von fechner
07 Feb 2022, 18:41
Forum: Delphin
Thema: Moisture source issue
Antworten: 6
Zugriffe: 6285

Re: Moisture source issue

As far as I understood you would like to model a air flow through specific material which can accumulate condensation inside the structure. You will do it for a 1D simulation by using a source model. Right? You can try the air change source model. This is actually for airspaces. Delphin will show a ...
von fechner
07 Feb 2022, 12:44
Forum: Delphin
Thema: Moisture source issue
Antworten: 6
Zugriffe: 6285

Re: Moisture source issue

Hello, May you can explain me more in detail what do you want to simulate? Which kind of construction, where is the source, what is the reason for the source? A simple moisture source only create or remove liquid water from the assigned location based on the given climate data. The other sources (ai...