
Re: Parametric studies results for a propeller
Seckin Uslu Dec 9, 2016 6:16 AM (in response to Txon Aguirre)The correct results are values. Averaged values are all values iteration from start to end. I dont know parametric study gives VALUES,
Instead of parametric study, you can clone study for different configurations.Also SW Flow has batch run functionality.

Re: Parametric studies results for a propeller
Bill McEachern Dec 9, 2016 7:22 AM (in response to Txon Aguirre)uJust to be clear: under Values is the value of the last iteration. Under average value is the averaged value of the value of each iteration over the last analysis interval. The min and max values are the min and max values recorded under values within the last analysis interval. The analysis interval is the number of iteration considered in the determination of convergence. In a steady state analysis the value and the average value will typically be close. At least that is my understanding and if you look it up in the Documentation it will say substantially the same thing.

Re: Parametric studies results for a propeller
Txon Aguirre Dec 10, 2016 4:28 AM (in response to Txon Aguirre)Hi all again:
I found where the results (VALUES) are in the parametric studies, thanks a lot. Anyway ....
The propeller under study is, as I pointed above, a CPP being designed for a ROV propulsion. Hence it is a little sized one (D=70mm).
The Pitch range in our study runs from 00º to 35º and RPMs from 3000 to 4500, resulting on Re for 70%R from 3.3E5 to 4.8E5 at the design advance speed.
When the parametric study is run, mainly in the case for Pitch=20º, very odd results are returned for some RPMs.
In order to check for those strange values, the project was cloned and a single study performed for those given conditions. This way, values agree with what was expected.
It must be said that the diference between both calculations is big, being one of them four times the other.
Therefore .............. If for some conditions, the difference between a parametric study and a single one is so big ...... How to trust on all other parametric results ?

Re: Parametric studies results for a propeller
Varun Vohra Dec 15, 2016 10:31 AM (in response to Txon Aguirre)can you share model to understand more..?

Re: Parametric studies results for a propeller
Txon Aguirre Apr 27, 2017 9:09 AM (in response to Varun Vohra)Sorry for this long delay. I've been abroad for a while.
Unfortunatelly, I cant share the model as It's not a private property of mine.
Regards

