problems with baffles
Hi, i am a new user of flow3d . I have some problems ,so I ask your help,please i have a question about the remark found in the explanation of an example of FLOW-3D (1'' define'' baffles along bottom), the problem is that I do not have inderstand the role of BAFLLES, another issue is the word bcz in the file prepin I did not find their explanation and their role in addition I can not find it in the software interface. thank you for helping me afrontir these problems
in the prepin file , the baffle definition appear as shown below: &bf nbafs=1, bcz(1)=1.0, |
bcz = baffle coordinate in z. It's the z-plane the baffle is defined in. This is easily determined from the User Manual. Look in the Input Variable Summary chapter. Ctrl-F = search, use it to find bcz in that chapter. Only define one baffle coordinate definition (x, y, or z); use limiters to cut the baffle down to size.
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thank you for the explanation. can you explain the role of baffles. |
Baffles are 2D surfaces used to represent thin objects without having to resolve the thickness. Also, they can serve as measurement devices, recording the flow of quantities through the baffle.
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Evaluating hydraulic energy losses and total hydraulic head with FLOW-3D baffles
A customer from Hydro-Quebec wrote an interesting article about using FLOW-3D baffles to evaluate hydraulic energy losses and total hydraulic head in a recent FLOW-3D newsletter. You can read it here: http://www.flow3d.com/resources/news...ulic-head.html
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DEAR experts:
I set a baffle,and defined it as a flux surface "yes". But when I save it ,"defined as a flux surface" will change to "NO" :eek: Ican't see the Value of the discharge Q (Volume flow rate) in the Analyze->Probe->General History data:confused: Help me, please!! |
Make sure you have only one (1) definition set. You can use Limiters to then further alter the shape. If you have only one Definition then you're using a version with a bug in it. If it's a legit version, contact Flow Science about it. If it's not a legit version try building the prepin file manually in a text editor or consider getting a real paid version.
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Dear experts
i some questions and i will so grateful to any kind of answers and opinions i used baffles to create a spur dike (groin) in channel in order to thin thickness vs channel length or width channel is ( 174cm* 60cm* 40cm) spur dikes are ( 30cm* 40cm* 4mm) so i used baffles to create dikes with porosity of 0, but there are some questions, should i turned off the define as flux surface because i read in help that: ((A flux surface is typically a 100% porous baffle with no flow losses so it does not affect the flow in any way. However, a flux surface can also be defined using a baffle that has a porosity greater than 0.0 and less than or equal to 1.0)) i want to create a solid object by baffle with a thin thickness the second question is why i see difference object in analyses?? for example the blue one in pictures?? i attached pictures of my problems to illustrate them Regards Hanif |
i have problems with baffles
i don't select flux plane to use baffles as thin walls half of this wall is in sediment and it acts like spur dike but when i use the FAVOR it didn't showed the part that is in sediment what should i Do? Thank you by the way |
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but the baffle that is in sediment remains as nothing :D |
baffle in probe
I have used the baffle to find discharge. but i want to know when we select the volume flow rate in general history, is there any difference to set data points?
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