Unknown keyword cp_g0

Please include project files - Main menu/Submit bug report - attach zip file here.
Aerolizer_1mm_share3.stl (1.4 MB)



DPIH_CFDDEM_AEROLIZER_V4.mfx (9.0 KB)
V4.zip (1.7 MB)
Hello,
I have build a MFiX file based on the attached paper on Aerolizer and DPI. I am getting an error message when I am trying to run. Kindly have a look at the MFX file and suggest where I am making mistake. I look forward to hearing from you. Thanks and Regards,
Debashis

A) Please try to make post topics more specific than “Problem with running” (I edited this post topic for you). This helps us keep track of posts and helps other users who may be searching the forum.

B) The keyword for constant fluid-phase specific heat is c_pg0, not cp_g0. I’m not sure how you got cp_g0 in your file. (There was a bug in an early version of the MFiX GUI which set cp_g0 instead of c_pg0 but this was fixed back in 2016).

The popup in your first screenshot is giving you the opportunity to fix this. Using the entry at the bottom of the error popup, change

cp_g0 = 1006.0

to

c_pg0 = 1006.0

then press "Update. Or, alternately, delete the key and enter the desired value in the “Specific heat” entry in the Fluid pane.

– Charles

Thank you Dr. Waldman. I will do that.

Dr. Waldman, the error due to cp_g0 = 1006.0 is gone. I changed it to c_pg0 = 1006.0.


X_G0. What will be the correct variable for that or should I delete it ?
error
I think this is the last error.
Kindly advice.
Thanks and Regards,
Debashis

I do not know how a variable x_g0 got into your file. The closest variable names are bc_x_g or ic_x_g. I think it’s probably safe to just delete this one.



DPIH_CFDDEM_AEROLIZER_V3_1Solid_CarrierOnly_DEM.mfx (9.1 KB)
Aerolizer_1mm_share3.stl (1.4 MB)
Dr. Waldman,
I have just one error message in this file when I am trying it to run. Kindly have a look at the error message. Let me know how I can fix it and make it run. This is for one-solid only with carrier particle.
I look forward to hearing from you.
Thanks and Best Regards,
Sincerely,
Debashis


Aerolizer_1mm_share3.stl (1.4 MB)
DPIH_CFDDEM_AEROLIZER_V0_2Solid_Carrier-API_DEM.mfx (9.1 KB)

Dr. Waldman,
I created the file with solids. Carrier and API. It opens without any error but gives an error with MEW when trying to run. Kindly have a look at the file and let me know where is the error. Same error was seen with 1 solid as well (posted earlier). I am not sure if this is due to an older version (25.1.2).
I look forward to hearing from you.
Thanks and Best Regards,
Sincerely,
Debashis

click on the “search” icon
search
then in the keyword browser enter the name of the keyword the message is telling you is missing (“mew”), select “mew” from the matches, then click “locate keyword”
You need to specifiy a value for this key (friction coefficient)

Thank you. I will do that for both 1 solid and 2 solid cases and let you know.