Close doors

[suzan-rouwhorst]

Hello,

For one of my classes I have to make a model of my home and set it on fire.
My doors and windows are closed always. I just don't know how to make them shut in CEdit. Is there anyone who can tell me how this works?

Thanks in advance!

Sorry for any language mistakes, I'm Dutch. If there's any more info needed for you to explain to me what I'm doing wrong, please ask me for that information!

[mcgratta]

Look at the box in the lower right corner. I think you need to set a time when the door opens. Try setting the time in seconds, and then a Fraction of 1, meaning fully open. Check the User's Guide to confirm. I have not used this feature in a while.

[suzan-rouwhorst]

Thank you so much for your reply!

It is initially open. In this model the doors have to be closed! But when I set both time and fraction to 0 it doesnt work!

[rpeacoc]

It should still work. I’ll take a look and give you example of it closing.Sent from my iPhoneOn Dec 9, 2025, at 10:57 AM, suzan-rouwhorst ***@***.***> wrote: Thank you so much for your reply! It is initially open. In this model the doors have to be closed! But when I set both time and fraction to 0 it doesnt work! —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[rpeacoc]

Here's an example input file with a simple vent closing. For the GUI to work, you'll need to put in more than one input into the vent opening fraction window. I've put three entries in: an initial fully open vent at 0s, the start of the vent closing interval at 1 s which then transitions to fully closed in another second.

An input file saved from this is as follows:

&HEAD VERSION = 7700, TITLE = 'CFAST Simulation' /
 
!! Scenario Configuration 
&TIME SIMULATION = 3600 PRINT = 60 SMOKEVIEW = 15 SPREADSHEET = 15 / 
&INIT PRESSURE = 101325 RELATIVE_HUMIDITY = 50 INTERIOR_TEMPERATURE = 20 EXTERIOR_TEMPERATURE = 20 /
 
!! Compartments 
&COMP ID = 'Comp 1'
      DEPTH = 2.4 HEIGHT = 2.4 WIDTH = 3.6
      ORIGIN = 0, 0, 0 GRID = 50, 50, 50 /
 
!! Wall Vents
&VENT TYPE = 'WALL' ID = 'WallVent_1' COMP_IDS = 'Comp 1' 'OUTSIDE' , BOTTOM = 0 HEIGHT = 2, WIDTH = 1
      CRITERION = 'TIME' T = 0, 1, 2 F = 1, 1, 0  FACE = 'FRONT'  OFFSET = 1.3 /
 
&TAIL /

[suzan-rouwhorst]

Thank you so much, this worked. Have been trying to get this to work for two weeks!