Control Valves for Non Newtonian fluids
Control Valves for Non Newtonian fluids
(OP)
Good morning,
I have been looking for information regarding control valve sizing for Non-Newtonian fluids.
So far I have found a couple of proprietary methods from vendors but they are not willing to share them for study.
I am wondering if anyone knows a good reference (book, guidelines, article, website) for this topic, or even better if anyone has experience sizing control valves for such applications that can provide me with some advice.
Best!
I have been looking for information regarding control valve sizing for Non-Newtonian fluids.
So far I have found a couple of proprietary methods from vendors but they are not willing to share them for study.
I am wondering if anyone knows a good reference (book, guidelines, article, website) for this topic, or even better if anyone has experience sizing control valves for such applications that can provide me with some advice.
Best!





RE: Control Valves for Non Newtonian fluids
What model of non-Newtonian fluid are you wanting this for? IIRC your previous posts were for a Bingham plastic.
Good luck,
Latexman
To a ChE, the glass is always full - 1/2 air and 1/2 water.
RE: Control Valves for Non Newtonian fluids
So far I have been working only with time-independent Non-Newtonian. I have been able to gather enough information to estimate the friction factor for Power-law fluids, Bingham plastics, and Herschel-Bulkley fluids and now I am working on fittings, control valves, restriction orifices and pumps.
I got information to deal with normal fittings and my next step was to address the control valves but I got stuck looking for reliable references. As I mentioned in my previous post, I talked with some vendors I normally deal with to ask them about the NN, and while they can quote any valve I need they are not willing to share their basic equations. At the end this wouldn't be a problem, as we normally ask vendors to complete the final sizing anyway. However, at early stages of the hydraulics, we (process engineers) normally estimate the size and CV of the valves and use this preliminary info in our hydraulic models and datasheets.
Best regards!
RE: Control Valves for Non Newtonian fluids
Good luck,
Latexman
To a ChE, the glass is always full - 1/2 air and 1/2 water.
RE: Control Valves for Non Newtonian fluids
Thanks a lot for the reference. I will look for this book in the library.
Best regards.
RE: Control Valves for Non Newtonian fluids
I talked with other vendors regarding this topic and one of them told me that basically they use the same equations as per incompressible flow, and apply viscosity corrections (apparent viscosity).
Best!
RE: Control Valves for Non Newtonian fluids
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist
RE: Control Valves for Non Newtonian fluids
Good luck,
Latexman
To a ChE, the glass is always full - 1/2 air and 1/2 water.