February 13, 2023 at 6:36 ampavankonchada123Subscriber
Dear Ansys Team
(rpgetvar 'dpm/lowest-mass) and (rpsetvar 'dpm/lowest-mass 1e-24) are not working in ansys 2022r2
Error: rp-var-value: undefined variable
Error Object: dpm/lowest-mass
February 14, 2023 at 7:25 ampavankonchada123Subscriber
The above commands are working in ansys 19.2 , Can anybody help me out with this
February 14, 2023 at 7:37 amPrashanthAnsys Employee
I checked in 22R2. You can't use it as that RP command is not available. RP commands are mostly used for internal testing purposes and the changes are not documented.
February 14, 2023 at 8:27 ampavankonchada123Subscriber
How to change the lowest mass of the dpm particle. Default value is 5*10^-28. But I want it to be 10^-50
February 14, 2023 at 9:47 amPrashanthAnsys Employee
Why do you want to decrease the min mass to such a lower value? Are you using any breakup models?
February 14, 2023 at 10:22 ampavankonchada123Subscriber
I am trying to model the nucleation of vapor which has critical radius near to 10^-14
February 14, 2023 at 4:29 pmRobAnsys Employee
It's changed. You may want to have a look in the TUI
February 14, 2023 at 6:47 pmpavankonchada123Subscriber
I didnot found any setting to change the default value of mass define/models/dpm/options , please can you help me
February 15, 2023 at 8:10 amDrAmineAnsys Employee
For changing the lowest mass you require hidden flags. TUI alone is not enough.
February 15, 2023 at 10:15 amRobAnsys Employee
Ah, you need to update to 2023R1
February 15, 2023 at 11:33 ampavankonchada123Subscriber
Hi Amine, Can you help me with hidden flags concept to set the least mass
in 2023r1 I cant find least mass /define/models/dpm/options
February 15, 2023 at 1:14 pmDrAmineAnsys Employee
I cannot help on that: as mentioned at least two times in this thread the flags are not meant to be exposed on this open forum. You can first assess that TUI way to define the minum particle diameter. You probably won't require that hidden flag for the mass in the newst versions. Just check if lowering the minimum diameter will help particle nucleation.
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