Ever wondered why water splits when it hits the sink before going down the pavement?
This everyday household process, which has confused engineers for centuries, has finally been explained by a researcher from Indian origin at the University of Cambridge.
The phenomenon, known as a hydraulic jump, was first documented by famous inventor and painter Leonardo da Vinci in the 16th century.
Hydraulic jumps are harmless in our household waste, but they can cause violent waves, turbulence and bubbles in deeper water, “said Rajesh Bhagat, Ph.D. student at St John’s College, University of Cambridge, UK.
Since the 1820s, scientists have thought that hydraulic jumps occur in part as a result of gravity pressure.
However, the latest study published in the Journal of Fluid Mechanics has contradicted this long-standing theory.
Bhagat fired water rays upward and lateral on flat surfaces and witnessed exactly the same hydraulic jumps as those when the water streamed downward.
He suspected that they could all be affected by the same factors ̵
1; surface tension and viscosity.
By changing these attributes on the water, he was able to accurately predict the size of the hydraulic jumps.
This was no matter what direction the water was moving – debunking the 200-year gravitation theory as a reason for a kitch
This type of hydraulic jump is known as a circular hydraulic jump.
Paul Linden, a professor at the University of Cambridge, describes Bhagat’s findings as “groundbreaking”.
“His experiments and theory show that the surface tension of the fluid is the key to the process and it has never been recognized even though the problem was discussed by Da Vinci and many others since.
” This work represents a remarkable achievement in our understanding of the dynamics of thin layers of liquid, says Linden.
Bhagat predicts that his finding could have extensive consequences for industries with high water consumption.
“Knowing how to manipulate the limit of a hydraulic jump is very important and now with this theory we can easily extend or reduce the limit.”
“Understanding this process has major consequences and can dramatically reduce the industrial water use. People can use this theory to find new ways to clean everything from cars to factory equipment, “said Bhagat.
He hopes that the research will also be used to find new ways to help us use less water in the average household. 19659019] (This story has not been edited by Business Standard staff and is automatically generated from syndicate feed.)