February 2, 2018 at 6:00 pmDKY2YSubscriber
I have just completed my impeller design using Vista CPD and created the cavitation simulation on Ansys CFX. However, I have carried out a transient simulation of the impeller using the following data:
Total Time= 5s
Time steps=0.01 s
Initial time=0 s
Time step interval=10
Does the spectrum results for the transient simulation look sensible as seen from the attached pictures? The data for the pump was obtained from a journal article where the pump has a high flow rate and high output pressure hence this explains why the transient results shows a high output
February 5, 2018 at 10:33 pmRaef.KobeissiSubscriberI think a time step of 0.01s is not sufficient for such analysis, it needs to be 1e-3 minimum (also it depends on your mesh resolution).
February 12, 2018 at 4:22 pmDKY2YSubscriber
Hi, thank you for your assistance. I have changed my time step to 1e-3 seconds just yesterday. Does it look like it is converging properly as seen in the attached picture.
- The topic ‘Spectrum Results for centrifugal pump cavitation’ is closed to new replies.
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