English: A 4-minute ‘how-it-works video’ explaining how engine-dynamometer water-brake absorbers work. 日期 2016年5月3日 來源 Land & Sea, Inc. 作者 Alan Scott 35
Re. 1:55: there is no such thing as centrifugal force. The water droplet in the rotor wants to go in a straight line but instead finds itself in an accelerating frame of reference; the acceleration is centripetal. The rotor is giving energy to its water droplets whereas the stator is not. This makes the water droplets in the rotor want to continue in a straight line (Newton's first law of motion) whereas the droplets leaving the rotor force the droplets in the stator to undergo centripetal motion.
@@vaibhavsharma300 it's not meant to generate any kind of power, the purpose of this device is for braking a spinning motor or absorbing rotational energy, it converts kinetic energy into heat, so when it's used the energy it absorbs is pumped out as a waste product, which is hot water. It doesn't need a lot of water either, that may be a misconception about this device, it only needs a trickle of water to keep it cool, enough to continuously flush out the hot water and keep it under 100C°. It's main benefit is it's lack of friction between components, which means it has a long operational lifespan compared to something like a disc or drum brake.
@@vaibhavsharma300 the reason the water gets hot is the same reason a torque converter gets hot. The water is being put under a severe shear load and as a result heat is generated. However as stated in the video, fresh cool water is brought in and the warm water is let out, if you continue this it will create a cooling effect and mitigate the generation of heat, it won't completely stop heat from being generated but it will greatly help.
Ideally the water should enter the cavity at the center of the “vortex” where the pressure is at a minimum, not at the outside edge. The fill and subsequent torque should be controlled by a valve on the outlet.
