Can We Design a Tube to Resist Fluid Flow?

AI Thread Summary
Designing a tube that completely resists fluid flow is challenging, with current technologies like the ferrofluidic seal and Tesla valve offering partial solutions. The Tesla valve, while having no moving parts, allows for some backflow despite its high resistance to forward flow. The discussion raises questions about the definition of a tube and the necessary inlet pressure to achieve resistance. Surface tension and viscosity are suggested as potential approaches to enhance fluid resistance. Ultimately, achieving complete fluid flow resistance remains an open question in fluid dynamics.
ramadhankd
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Hello everyone, I want to ask something. Can we design a tube that can completely resist the flow of a fluid? Maybe using either viscosity or surface tension approach? Thanks
 
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ramadhankd said:
Hello everyone, I want to ask something. Can we design a tube that can completely resist the flow of a fluid? Maybe using either viscosity or surface tension approach? Thanks
Closest device i can imagine is the ferrofluidic seal.
 
How about the Tesla valve? It has no moving parts. Whether or not it is a tube is up to your definition of tube.
 
How much inlet pressure does it need to resist?

PS The Tesla valve has a very high backflow to forward flow resistance but does not fully stop backflow.
 

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