Len: /* Dialog: Calculation Period / Profiles */

2008-09-16T07:03:12Z

Dialog: Calculation Period / Profiles

← Nächstältere Version		Version vom 16. September 2008, 09:03 Uhr
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	A general discussion regarding the choice of an appropriate time step size can be found		A general discussion regarding the choice of an appropriate time step size can be found
	in the help topic [[Discussion:~~WUFIsPerformanceAndLimitations~~ \| "WUFI's performance		in the help topic [[Discussion:WUFI-Pro_PerformanceandLimitations \| "WUFI's performance
	and limitations"]].		and limitations"]].
	</P>		</P>

Len: Die Seite wurde neu angelegt: = Dialog: Calculation Period / Profiles = Bild:DialogCalculationPeriod_01.gif
Here you tell WUFI for which period of time the simulation shall be carried out ...

2008-09-16T07:01:54Z

Die Seite wurde neu angelegt: = Dialog: Calculation Period / Profiles = Bild:DialogCalculationPeriod_01.gif Here you tell WUFI for which period of time the simulation shall be carried out ...

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= Dialog: Calculation Period / Profiles =

[[Bild:DialogCalculationPeriod_01.gif]]


Here you tell WUFI for which period of time the simulation shall be carried out
(e.g. the simulation is to span one year, starting on June 1st).


Enter the "Start" date and the "End" date in the
table, either directly or via the drop-down calendar. 
WUFI calculates the [[Glossary:Glossary-1D | courses]] for the time interval
between the starting and the ending date. For both dates,
[[Glossary:Glossary-1D | profiles]] are also output. 
You can get additional profiles for intermediate dates by inserting these dates in the
timetable (such as Profile 2 and Profile 3 in the above screenshot).


Most [[1D:Dialog_Climate | climate files]] represent typical climates and not
individual years (e.g. "1995"). Therefore, any year number may be entered
for the date.


If the calculation period extends beyond the end of the year, WUFI starts reading the same
climate file again from the beginning. If the calculation period spans more than one year,
WUFI reads the same climate file repeatedly.


You may also enter the size of the "Time Steps" used by WUFI during the
calculation. Basically, there are no restrictions on the size of the time steps, but
please note that the time step cannot be larger than the
[[Details:KLI-File | climate data interval]].


If you are using hourly climate boundary conditions, a time step of one hour is an
obvious choice and usually sufficient. For moisture transport calculations in building
physics, time steps between ca. 10 minutes and ca. 24 hours may be adequate, depending
on the problem at hand. With smaller time steps, computing time increases markedly,
with larger time steps, the results may become inaccurate.


The simplest choice is to set the time step for the calculation equal to the time
intervals in the climate file. If you want to use a different time step, you should
choose it so that it divides the climate time intervals exactly. Otherwise, WUFI adjusts
each time step so that it does divide the current climate interval exactly. This is
further discussed in the help topic
[[Details:KLI-File | "The *.KLI Format for Climate Data"]].


A general discussion regarding the choice of an appropriate time step size can be found
in the help topic [[Discussion:WUFIsPerformanceAndLimitations | "WUFI's performance
and limitations"]].


Version notice: Start and end of calculation and time step are
user-editable only in WUFI Pro. Additional profiles are available only in WUFI Pro.
In WUFI light and WUFI ORNL/IBP the calculation is restricted to two years.

1D:Dialog Time - Versionsgeschichte

Len: /* Dialog: Calculation Period / Profiles */

Len: Die Seite wurde neu angelegt: = Dialog: Calculation Period / Profiles = Bild:DialogCalculationPeriod_01.gif Here you tell WUFI for which period of time the simulation shall be carried out ...

Len: Die Seite wurde neu angelegt: = Dialog: Calculation Period / Profiles = Bild:DialogCalculationPeriod_01.gif
Here you tell WUFI for which period of time the simulation shall be carried out ...