OpenFOAM utility: wdot

sharonyue · March 3, 2015, 04:33

Hi guys,

Its an utility provided by OpenFOAM. In UG, we have this description:

Code:

wdot                        Calculates and writes wdot for each time

But what is wdot?
Thanks.

wyldckat · March 6, 2015, 16:01

Quick answer: It's a utility: https://github.com/OpenFOAM/OpenFOAM...us/wdot/wdot.C
Try running:

Code:

which wdot

---------

edit:

Sorry... I misunderstood the question. Since you didn't specify "what is the wdot field?" - I didn't understand you had understood it was a utility.

As the source code indicates, it calculates:

Code:

St = Xi*Su
wdot = St*mgb

When searching in the source code, looks like PDRFoam has some answers:

Code:

turbulent flame speed field St

strained laminar flame speed field Su

Well... it's related to combustion... beyond that, I can't find more details.

sharonyue · March 6, 2015, 16:52

Quote:

Originally Posted by wyldckat

Quick answer: It's a utility: https://github.com/OpenFOAM/OpenFOAM...us/wdot/wdot.C
Try running:

Code:

which wdot

---------

edit:

Sorry... I misunderstood the question. Since you didn't specify "what is the wdot field?" - I didn't understand you had understood it was a utility.

As the source code indicates, it calculates:

Code:

St = Xi*Su
wdot = St*mgb

When searching in the source code, looks like PDRFoam has some answers:

Code:

turbulent flame speed field St

strained laminar flame speed field Su

Well... it's related to combustion... beyond that, I can't find more details.

Hello Bruno!

Thank you for that! yep, Im looking for a specific word for that, seemingly there is not! I think u r correct. have a nice day!

Best,

March 3, 2015, 04:33	OpenFOAM utility: wdot	#1
sharonyue Senior Member Dongyue Li Join Date: Jun 2012 Location: Beijing, China Posts: 838 Rep Power: 17	Hi guys, Its an utility provided by OpenFOAM. In UG, we have this description: Code: wdot Calculates and writes wdot for each time But what is wdot? Thanks.

March 6, 2015, 16:01		#2
wyldckat Retired Super Moderator Bruno Santos Join Date: Mar 2009 Location: Lisbon, Portugal Posts: 10,975 Blog Entries: 45 Rep Power: 128	Quick answer: It's a utility: https://github.com/OpenFOAM/OpenFOAM...us/wdot/wdot.C Try running: Code: which wdot --------- edit: Sorry... I misunderstood the question. Since you didn't specify "what is the wdot field?" - I didn't understand you had understood it was a utility. As the source code indicates, it calculates: Code: St = XiSu wdot = Stmgb When searching in the source code, looks like PDRFoam has some answers: Code: turbulent flame speed field St strained laminar flame speed field Su Well... it's related to combustion... beyond that, I can't find more details. Last edited by wyldckat; March 6, 2015 at 16:10. Reason: see "edit:"

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