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IDProjectCategoryView StatusLast Update
0003471OpenFOAMBugpublic2020-04-16 12:30
ReporterFoamerSvAssigned To 
PrioritynormalSeverityminorReproducibilityhave not tried
Status newResolutionopen 
PlatformGNU/LinuxOSUbuntuOS Version14.04
Product Version7 
Fixed in Version 
Summary0003471: Bugs to calculate the thickness of liquid sheet in LISAAtomization
DescriptionThe codes in LISAAtomization.C#L148
hSheet = volFlowRate/(constant::mathematical::pi*delta*Urel);
It is obviously to demonstrate the calculation of thickness of liquid sheet, hSheet. volFlowRate is the volume rate [m3/s]. delta is the radial distance from the center line (injector direction) to the mid-line of the sheet (umbrella rib). Urel is the velocity of parcel.
Should not it be calculated by the following sentence?
hSheet = volFlowRate/(constant::mathematical::twoPi*delta*Urel);
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FoamerSv

2020-03-26 14:47

reporter  

2020-03-26_182131.png (14,233 bytes)
2020-03-26_182131.png (14,233 bytes)

will

2020-04-16 12:30

manager   ~0011293

I agree with your analysis, but to be confident enough to release the proposed change I need some way of testing it, and some evidence to suggest that it is beneficial. We don't have a tutorial that uses this functionality and there isn't even a usage description in the header. Given that, and with reports stating that the implementation is incorrect, I would be more inclined to remove this model than to patch it.

Do you have a case which uses this model, and which demonstrates the need for your proposed change?

Issue History

Date Modified Username Field Change
2020-03-26 14:47 FoamerSv New Issue
2020-03-26 14:47 FoamerSv File Added: 2020-03-26_182131.png
2020-04-16 12:30 will Note Added: 0011293