Timeline for Will this water jet propulsion system design produce any forward thrust?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 3, 2019 at 23:51 | comment | added | user18610 | @ kamran, thank you for that suggestion, I will use this new pipe layout in my final design of toy boat. | |
| Jan 3, 2019 at 19:39 | comment | added | kamran | @HRIATEXP, If you can modify the inlet pipe so that it points to bow of toy boat, it will move ahead straight, with most efficiency and does not need any directional correction. | |
| Jan 1, 2019 at 13:46 | comment | added | user18610 | @ Fred, also, there is another way to move in a general forward direction and that would be to keep alternating the rotation of the propeller so to alternate the flow of water through the pipe, say in 30 second increments. The path of the boat would resemble a sine wave. | |
| Jan 1, 2019 at 13:27 | comment | added | user18610 | @ Fred, thanks for pointing this out, it took me a while to see why this wouldn’t provide a clockwise torque. The toy boat’s rudder is the simplest way to make the boat travel in a straight line. I think another way would be to rotate the whole pipe 90 degrees so that the inlet pipe would be submerged under the waterline and the outlet pipe would be above the waterline and water would be shooting out like a traditional water jet. | |
| Dec 30, 2018 at 16:58 | history | edited | user18610 | CC BY-SA 4.0 |
added text for better clarity
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| Dec 30, 2018 at 12:13 | comment | added | Fred | Adding a rudder in the inlet pipe will only alter the streamline flow of the water in the inlet duct. It will have no effect on the end result. The rudder needs to be attached to the outside of the boat to counter the thrust produced by the outlet duct. | |
| Dec 30, 2018 at 11:24 | history | answered | user18610 | CC BY-SA 4.0 |