The Tesla Valve Tesla’s valvular conduit is mostly misunderstood as presented in much of literature and most media such as RUclips in recent years. This device cannot be called a valve if used as an inline flow resistor. It is usually but erroneously demonstrated as a ‘one way valve’ with fluid, be it gas or liquid where the pressure drop is considerably larger in one direction flow than in the opposite. To use electrical analogy, this is not a diode but a resistor, therefore, the word valve is inappropriate. The expected ‘valve’ action (check or non-return valve) is unimpressive if anything. Tesla originally construed his ‘valvular conduit for gas flow, and in fact specifically for gas under pulsating pressure. In this application, it may be called a ‘valve’ or a ‘fluid diode’. Gas under hight frequency pulsating pressure takes advantage of this clever topology and is free to flow in one direction with relatively negligible losses and practically no backflow. With careful design, Tesla’s valvular conduit is a true pulsating gas diode with no moving parts. An illustrative application would be an IC engine exhaust manifold. It should also be noted that this valve will have optimal performance at a single design point, i.e., temperature, fluid type, volumetric flow and frequency, so that any change of a parameter will have it operating off optimum. As for making a modern design, I imagine a cut and try method with FEA would be used. I came across only one YT video where the guy understood the Tesla valve. ruclips.net/video/SQAlM5Nyu9Q/видео.html
Wow, a lot less effective than I thought. I saw a video earlier on a video game sim of the design stopping a tsunami. Could this design be used to at least slow it down?
What I don't get is that it doesn't actually stop flow in the other direction. Yes, it uses no moving parts, and that's great from a mechanical perspective. But the one thing all modern one way valves do is they STOP flow. The Tesla valve doesn't stop it, it just slows it down by introducing massive turbulence. But I could pour a whole bucket of water thorugh a tesla valve the wrong way, it would just take al ittle longer.
Thank you for your comment. indeed it doesn't stop flow completely but that doesn't mean it is not useful (e.g. for corrosive liquid or liquids that carry biological samples sensitive the traditional valves). It works better when supplied flows pulsating, and could be used to harness vibration to pump. It has been used that way. The device is also very useful for mixing.
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Thanks for the great video!
AWESOME VIDEO KEEP IT UP!!!
Damn it was in my recommendations
Great work tho
The Tesla Valve
Tesla’s valvular conduit is mostly misunderstood as presented in much of literature and most media such as RUclips in recent years. This device cannot be called a valve if used as an inline flow resistor. It is usually but erroneously demonstrated as a ‘one way valve’ with fluid, be it gas or liquid where the pressure drop is considerably larger in one direction flow than in the opposite. To use electrical analogy, this is not a diode but a resistor, therefore, the word valve is inappropriate. The expected ‘valve’ action (check or non-return valve) is unimpressive if anything.
Tesla originally construed his ‘valvular conduit for gas flow, and in fact specifically for gas under pulsating pressure. In this application, it may be called a ‘valve’ or a ‘fluid diode’. Gas under hight frequency pulsating pressure takes advantage of this clever topology and is free to flow in one direction with relatively negligible losses and practically no backflow. With careful design, Tesla’s valvular conduit is a true pulsating gas diode with no moving parts. An illustrative application would be an IC engine exhaust manifold.
It should also be noted that this valve will have optimal performance at a single design point, i.e., temperature, fluid type, volumetric flow and frequency, so that any change of a parameter will have it operating off optimum.
As for making a modern design, I imagine a cut and try method with FEA would be used.
I came across only one YT video where the guy understood the Tesla valve. ruclips.net/video/SQAlM5Nyu9Q/видео.html
Wow, a lot less effective than I thought.
I saw a video earlier on a video game sim of the design stopping a tsunami. Could this design be used to at least slow it down?
The Tesla valve is meant for gas, not fluid.
@@skaroyd well gas acts as a fluid in certain situations if not most
What I don't get is that it doesn't actually stop flow in the other direction. Yes, it uses no moving parts, and that's great from a mechanical perspective. But the one thing all modern one way valves do is they STOP flow. The Tesla valve doesn't stop it, it just slows it down by introducing massive turbulence. But I could pour a whole bucket of water thorugh a tesla valve the wrong way, it would just take al ittle longer.
Thank you for your comment. indeed it doesn't stop flow completely but that doesn't mean it is not useful (e.g. for corrosive liquid or liquids that carry biological samples sensitive the traditional valves). It works better when supplied flows pulsating, and could be used to harness vibration to pump. It has been used that way. The device is also very useful for mixing.