"Tesla turbomachines have found wide ranging applications...
This paper attempts
to present the outcomes of research carried out by various researchers during the last four decades...
A summary of the
modeling, simulation, and experimental procedures used to understand Tesla machines is presented...
Embodiments of the
invention exploit the natural physical properties of fluids to create a more efficient means of driving fluids as well as
transferring power from propelled fluids. In 2003 Scott D. O’Hearen took a patent on Radial turbine blade system. This invention utilizes a combination of the concepts of a smooth runner
surface for working fluid frictional contact and that of blades projecting axially from plural transverse runner faces."
Author, Harikishan Gupta E., & Author, Shyam P. Kodali (2013). Design and Operation of Tesla Turbo machine - A state of the
art review. International Journal of Advanced Transport Phenomena, 2(1), 2-3.
"In U.S. patent 0053909 from
2003, there are airfoils between discs. Airfoils are placed in such manner, that they guide fluid
flow toward a central opening that acts as exhaust. Fluid flows through nozzles, that direct fluid between discs and on leading
edges of airfoils. Momentum is exchanged through mechanisms: fluid flow strikes the leading surface of airfoils, fluid flow
around airfoils produces lift on them and viscous interaction between disc surface and fluid. They all contribute to rotational
output, for lift on an airfoil is perpendicular to freestream velocity. Only some airfoils extend from outer edge of the disc
to the outer edge of exhaust outlet, because we have to have enough opening area for exhaust gasses. Shaft can be connected
to one of the outer discs, that does not have a central opening, and exhaust gasses leave the turbine from space between this
and adjacent disc. Such turbines can be made of composite materials. It has only few moving parts (cheaper manufacture) and
lubrication is required only for shaft bearings (environmentally friendly). Because discs are connected through airfoil shaped
parts, they are more resistant to deformations at higher angular speeds. It is intended for use in turbine engines."
Author, Matej Podergajs, & Advisor, Dr. Rudolf Podgornik (2011). The Tesla Turbine. University of Ljubljana Faculty of Mathematics
and Physics, 11-12, 14.
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