Sonar and Radar are used to detect stealth submarines. Sonar is able to bounce the sound waves of a Submarines and Radar can identify Subtle disturbances on or below the ocean’s surface which indicates how deep a Submarines is. The acoustic cloak will be made using ‘meta-materials’. And it would be impossible to detect certain natural properties like magnetism or refraction that can bend sound waves around the craft by Sonar. On the contrary, a fluid cloak will act on the flow of water over a craft that conceals any wake or turbulence which eradicates the threat from Radar.
Yaroslav Urzhumov, an assistant research professor at the Center for Meta-materials at Duke University assures that a material can be made by combining acoustic and fluid cloaking systems. To be noted, a fluid cloak would consist of hundreds of small Water Jets like Jet Skis. The jets would drive the water fast as it entered the sheath (above image: Red and Orange) and slows down the remaining. (Above Image: Green and Blue). The water would close around the sub seamlessly and generates no disturbance as having no change in speed.
Scientists are concentrating on making better Soundproof and less Vibration generating submarines like cones or cylinders.
Hope so, this futuristic Submarines will be used in good purpose and will bring peace in the world. Share your comments below.
Source : PopSci
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