actual PUMP GEOMETRY, using vista cpd

abdg · June 28, 2018, 10:28

dear

I am finishing an academic paper and I use CFX.

I have a characteristic curve pump,

whether with a characteristic curve pump we can get the actual pump geometry, using a characteristic curve pump.

how to use vista cpd using a characteristic curve pump.

ghorrocks · June 28, 2018, 21:49

No you cannot. At least not without a lot of assumptions, and even then it becomes an inverse problem (https://en.wikipedia.org/wiki/Inverse_problem) which are challenging at the best of times.

MGE_CFD · June 30, 2018, 21:28

dear abdg
could start by means of hypotheses, from the beginning could insert in the CPD view the values of the pump BEP. simulate two points above and two below and power check and NPSH. It will be very laborious and I believe that theoretical values in relation to the angles of entry and exit will help.

abdg · July 4, 2018, 09:57

dear my friend

could you please give me the steps?

i am new in vista cpd and cfx

please help me my friend

June 28, 2018, 10:28	actual PUMP GEOMETRY, using vista cpd	#1
abdg New Member abdullah ghifari Join Date: Jun 2018 Posts: 3 Rep Power: 8	dear I am finishing an academic paper and I use CFX. I have a characteristic curve pump, whether with a characteristic curve pump we can get the actual pump geometry, using a characteristic curve pump. how to use vista cpd using a characteristic curve pump.

June 28, 2018, 21:49		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,872 Rep Power: 144	No you cannot. At least not without a lot of assumptions, and even then it becomes an inverse problem (https://en.wikipedia.org/wiki/Inverse_problem) which are challenging at the best of times. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

July 4, 2018, 09:57	generally	#4
abdg New Member abdullah ghifari Join Date: Jun 2018 Posts: 3 Rep Power: 8	dear my friend could you please give me the steps? i am new in vista cpd and cfx please help me my friend

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June 30, 2018, 21:28		#3
MGE_CFD New Member MGE_CFD Join Date: Jun 2018 Posts: 8 Rep Power: 8	dear abdg could start by means of hypotheses, from the beginning could insert in the CPD view the values of the pump BEP. simulate two points above and two below and power check and NPSH. It will be very laborious and I believe that theoretical values in relation to the angles of entry and exit will help.