I really like the elimination of the duct. Great concept. Perhaps there is a way to increase your B field strength by making the bottom surface corrugated so you can lay in the magnets with their poles aligned in the internal troughs. Slight increase in surface and drag, but an increased field strength. So it's like half a duct. B>WWW>B.
Have you heard of the channel @MHDTechnologyLaboratory ? In addition to FEA, they demonstrated an MHD conduction pump using GaInSn as the working fluid at depth (50mm) and achieved 500 mm/s flow velocity with *0.9V @ 1000A* using a 50x50x100 mm 150mT neodymium magnet with 15mm gap from fluid and 100mm long electrodes with 170mm gap. It was in a closed square box with turbulent flow velocity, so with an efficacy of 0.5555.. mm/W*s this is very impressive. Of course, with a GaInSn conductivity of 3,000,000 S/m this has a fluid electrical resistance of around 5.67E-5 ohms with their electrode geometry and eliminates a substantial amount of joule heating losses. It seems it would require 150mW of power at 2.83mV 50A resulting in 53mm/s velocity, 1500 N/m3 force and efficacy of 353.3 mm/W*s. That number does collapse fairly quickly, as expected of the square proportionality of joule heating losses, as well as the higher fluid velocities and turbulent flows.
What about a magnetic keel in order to tackle bouyancy and estabilty with displacement, or a triamaran configuration to make it more hydrodinamic. I know its easy to write after just watching the video, but to my eyes that hul doesnt look very useful to the weight of the sistem.
Sure, anytime. There is already a fair bit of information contained in other videos that I have published in the Playlist. More technical information will be coming soon in additional videos.
I really like the elimination of the duct. Great concept. Perhaps there is a way to increase your B field strength by making the bottom surface corrugated so you can lay in the magnets with their poles aligned in the internal troughs. Slight increase in surface and drag, but an increased field strength. So it's like half a duct. B>WWW>B.
Have you heard of the channel @MHDTechnologyLaboratory ? In addition to FEA, they demonstrated an MHD conduction pump using GaInSn as the working fluid at depth (50mm) and achieved 500 mm/s flow velocity with *0.9V @ 1000A* using a 50x50x100 mm 150mT neodymium magnet with 15mm gap from fluid and 100mm long electrodes with 170mm gap.
It was in a closed square box with turbulent flow velocity, so with an efficacy of 0.5555.. mm/W*s this is very impressive. Of course, with a GaInSn conductivity of 3,000,000 S/m this has a fluid electrical resistance of around 5.67E-5 ohms with their electrode geometry and eliminates a substantial amount of joule heating losses. It seems it would require 150mW of power at 2.83mV 50A resulting in 53mm/s velocity, 1500 N/m3 force and efficacy of 353.3 mm/W*s. That number does collapse fairly quickly, as expected of the square proportionality of joule heating losses, as well as the higher fluid velocities and turbulent flows.
Sounds interesting, I will have to look it up.
Nice.. Can it work in the salt water?
It only works in salt water.
What about a magnetic keel in order to tackle bouyancy and estabilty with displacement, or a triamaran configuration to make it more hydrodinamic.
I know its easy to write after just watching the video, but to my eyes that hul doesnt look very useful to the weight of the sistem.
A keel would certainly help to damp the rolling. I will make another video to discuss the hull shape.
That boat needs a keel!
Hi sir , i would like to do this for my school project, may I advise u on more information regarding the prototype. thanks sir
Sure, anytime. There is already a fair bit of information contained in other videos that I have published in the Playlist. More technical information will be coming soon in additional videos.