A Tesla Valve, originally called Tesla's Valvular Conduit, is a fixed-geometry passive Check valve. It allows a fluid to flow preferentially in one direction, without moving parts. The device is named after Nikola Tesla, who was awarded a patent in 1920 for its invention.
A Tesla Valve offers resistance 10-200 times greater in one direction compared to the other, in which the flow is turbulent. Based on CFD analysis of a 4 segment valve, the resistance in the blocking direction was 15 times greater than the unimpeded direction, evidence suggests that a pressure ratio of 200 could be achieved.
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- Deng, Yongbo; Liu, Zhenyu; Zhang, Ping (28 Jan 2010). "Optimization of no-moving part fluidic resistance microvalves with low reynolds number" (PDF). Micro Electro Mechanical Systems (MEMS), 2010 IEEE 23rd International Conference on. doi:10.1109/MEMSYS.2010.5442565.
- Gamboa, Adrian R.; Morris, Christopher J.; Forster, Fred K. (2005). "Improvements in Fixed-Valve Micropump Performance Through Shape Optimization of Valves". Journal of Fluids Engineering. 127 (2): 339. doi:10.1115/1.1891151.
- "Tesla's Valvular Conduit - Fluid Power Journal". Fluid Power Journal. 2013-10-23. Retrieved 2016-06-10.
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