# Radiation Modell DO

 User Name Remember Me Password
 Register Blogs Members List Search Today's Posts Mark Forums Read

 January 20, 2005, 06:08 Radiation Modell DO #1 Thomas Guest   Posts: n/a Hello, has anyone experiences in simulation the sun shining on a transparent glass fassade using the DO-radiation modell? What are good values for the radiation modell and the absorption coeffizient for glass? How to set good inital values? How to define the correct semi-transparent values for the glass-fassade. How to simulate the heating of the aluminium sun-protection? Thanks for your help.

 January 20, 2005, 10:36 Re: Radiation Modell DO #2 gts Guest   Posts: n/a Hello, You can find some values for the glass properties in : Virgone J.; Depecker P., Krauss, G., Computer Simulation of Glass Temperatures in Fire Conditions, Building and Environment, Vol. 32, pp. 13-23, 1997 or some references in: K.H.Lee, R. Viskanta, Comparison of the diffusion approximation and the discrete ordinates method for the investigation of heat transfer in glass, Glass Sci. Technol. , 72, 254-265, 1999

 January 20, 2005, 11:37 Re: Radiation Modell DO #3 Thomas Guest   Posts: n/a Do you also now how to set up solar radiation in fluent 6.0? How to define the non-gray-bands in the DO-Modell? How to simulate the radiation from outside into my room

 January 20, 2005, 12:35 Re: Radiation Modell DO #4 gts Guest   Posts: n/a I don't know about the solar radiation. Do you mean non-gray model? If yes, from define->model->radiation->Discrete Ordinate-> Non_Gray Model You give the number of spectral bands and the bands intervals in µm. When you will define the absorbtion coefficient (define -> material->absorbtion coefficient) you can choose gray band and you have to fill the value for each band If you have a semitransparent boundary you must give the values for the external irradiations for each spectral band (that is given by the sun radiation). I am not verry usual with this. You can find more details in Fluent User Guide 6.1 in paragraph 11.3.14

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post discovolante Main CFD Forum 1 April 26, 2009 16:05 Luk_Fiz CFX 5 March 17, 2009 04:51 Thomas FLUENT 0 April 12, 2005 03:27 visatron CFX 7 January 8, 2004 16:25 Michael Schwarz Main CFD Forum 0 October 21, 1999 05:56

All times are GMT -4. The time now is 16:03.

 Contact Us - CFD Online - Top