dumpster4
I really should change my personal text
- Joined
- 9 November 2017
- Messages
- 57
- Reaction score
- 84
Chinese researchers find novel method to track US submarines
"Researcher Zou Shengnan and her team were looking at the possibility of detecting almost imperceptible bubbles made by the submarine as it cruises through water and has now successfully generated a computer model to demonstrate that it could potentially work.
Submarines cannot avoid these bubbles as their motion causes the water around the hull to move faster, reducing its potential energy. The potential energy is expressed as pressure and as it decreases, some of the water vaporizes to maintain the energy equilibrium.
This process occurs more in areas of sharp curvature or where the surface is rough, and as water flows around the hull, the bubbles get bigger and move away from the surface. Here the higher pressure causes them to collapse violently, resulting in an electromagnetic signature, a phenomenon known as the magnetohydrodynamic (MHD) effect."
See:
interestingengineering.com
"Researcher Zou Shengnan and her team were looking at the possibility of detecting almost imperceptible bubbles made by the submarine as it cruises through water and has now successfully generated a computer model to demonstrate that it could potentially work.
Submarines cannot avoid these bubbles as their motion causes the water around the hull to move faster, reducing its potential energy. The potential energy is expressed as pressure and as it decreases, some of the water vaporizes to maintain the energy equilibrium.
This process occurs more in areas of sharp curvature or where the surface is rough, and as water flows around the hull, the bubbles get bigger and move away from the surface. Here the higher pressure causes them to collapse violently, resulting in an electromagnetic signature, a phenomenon known as the magnetohydrodynamic (MHD) effect."
See:
Chinese researchers find novel method to track US submarines
Known for their stealth, US submarines could lose their advantage after further research in this area.
interestingengineering.com
