I gonna tell u about a new phenomenom where human are hardly take full advantage of it. It was a give from God the we all should take advantage of. But we all people even rarely know wht kind phenomenom is it. I gonn tell u about another God's sign which only can be seen in water, which was called Supercavitation. Supercavitation? I barely know what is cavitation all about, they had already have Supercavitaion??? ok ok, let me tell u one by one cos i believe my readers all are not engineering students. Regarding to the topic, u must be wondering wht is Supercavitaiton all about, right? This word seems so familiar, but what is it all about, huh? It derives from the word cavitation where according to wikipedia: Cavitation is the phenomenon where small cavities of partial vacuum form in fluid, then rapidly collapse, producing a sharp sound.
It occurs in pumps, propellers, impellers, and the vascular tissues of plants. Cavitation is the formation of pockets of vapor in a liquid. This process is caused by low pressures in the liquid. When the local ambient pressure at a point in the liquid falls below the liquid's vapor pressure, the liquid undergoes a phase change to a gas, creating "bubbles," or, more accurately, cavities, in the liquid.
Now tht i already know cavitation's meaning, wht the hell is Supercavitation????Supercavitaton accordding to wikipedia says tht:
Supercavitation is the use of cavitation effects to create a large bubble of gas inside a liquid, allowing an object to travel at great speed through the liquid by being wholly enveloped by the bubble.
The cavity (i.e., the bubble) reduces the drag on the object and precisely this makes supercavitation an attractive technology: drag is normally about 1,000 times greater in water than in air.
So what is the application that we can get from this phenomenom?
From wht i been thinking, since Supercavitation only can be form during high speed in waters, therefore i think we can use it as a transport from one place to another with a design that will be almost looks like a submerine or maybe an Jet Aircarft. So far the only technology tht has been put to test is made by the Russian through military and warfare. It was called the VA-111 Shkval("Squall") torpedo. Check the picture attached. It was said tht this torpedo can travel as fast as 230 mph which is 100 m/s ! Compare to the top speed of conventional aquatic craft which is just 80 mph (35 m/s). But the design makes the Shkval torpedo unsteerable. Maybe is was because it just too fast to control. Maybe lah. And u know sumthing, this Shkval topedo already develop in 1977, only in the 1990s the news came to West( Americans lah, saper lagi?! ). The Russians manage to put this to secrecy for almost 13 years! The breakthrough is due to the sunken nuclear sub in Barents Sea, Kursk where all 181 crewmen died. They Russian rejected help from outsiders eventhough they claim is just a civil operation rather than 'military experiment'. During this time, some rumours said that they were experimenting the Shkval torpedo. Shkval torpedo only can be carried by Akula type subs (for American, these subs are classified as Typhoon Class, where only 6 of them can be found in this world.). And Kursk is one of them. Recently in 2004, the Germans are trying to develop another one called Barracuda. According to this article, Barracuda have the speed of 800 km/h !!! Wow ! Shkval's speed was 350 km/h, 4 times fast as the conventional torpedoes, but the barracuda is already 800 km/h !!!!!
Hey !! Didn't have a better idea rather than just develop stuff for warfare ??? I hate war!
Good question. Patience, u see, mostly people on this earth need to develop it in warfare use and than they will apply it for public use only after it has proven the safety of its usage. In US's magazine, Science fiction, they mention that one day they be a supercavitation craft. Therefore, this is not impossible. We will be able to fly in the water oneday. And according to Scientific American, also a US magazine, they say "warp-drive underwater" will not be possible.
Will it have any advantage or disadvantage??
Whell, since it was a very very very new technology, your guess is just as good as mine and along with other engineers/scientist who working on it. The advantage tht u might agree of is that finally we can use water as our new road of travelling rather than in the land and air. regarding to the heat transfer, water is good liquid conductor, therefore i believe the heat generated from the drag will have been spread in side the water. And the temperature in Atlantic Ocean alone is about 4'C. If u fall down in the ocean, u only have 4 minutes to live before u die of Hyperthermia or extreme cold. For the disadvantage, well, it still consump fuel. So i think the energy source is still old fashion where they will have nozzle or turbine to generate the power. Even the safety haven't fully measured, therefore it will take a lot of time to work on it. Currently the Gemans, Russians and Americans are competeting thier way to produce the best design torpedo. So therefore, i hope at the same time, there's an effort to make the watercraft.We all not sure yet how supercavitation reacts. Yet experiments will be conducted. Maybe supercavitation have effects depending on the depth tht gives different types of water, or perhaps the temperature of the water could be a factor. Other than that, we could consider design of the craft that will from the supercavition. Only God knows.....Some updates: i did share my thoughts with Dr Lim, and he said other than juz for this transportation usage, he also said the phenomenom also applies to radiation detaction. how can tht be?? i also not fully understand how it works. Ask him la if u want to know more. hahaha.
I still dun understand la. Can u tell me more ??
In case u still don't understand wht Supercavitation all about, u can always check at
There they have a good explanation centered around envisaged supercavitation technology. It was a website from Kowitcki's brothers(the one who made The Matrix if i not wrong) in their plan to make a moie on this Supercavitation. I also attached some picture tht will be able to help u understand better and have a clear vision of wht am i talking about. Take care and good day.
click here to see more pictures of Supercavitation for a better view.
click here to download the video on a flight in water supercavitating. If u use streamyx sure fast cos it's just 14Mbs.
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