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Explain critical speed , White Water Rapids and turbulent flow .

Answer» <html><body><p></p>Solution :<a href="https://interviewquestions.tuteehub.com/tag/critical-427694" style="font-weight:bold;" target="_blank" title="Click to know more about CRITICAL">CRITICAL</a> speed : Steady flow is achieved at low flow speeds beyond a limiting <a href="https://interviewquestions.tuteehub.com/tag/value-1442530" style="font-weight:bold;" target="_blank" title="Click to know more about VALUE">VALUE</a> , called critical speed .<br/>Turbulent flow : In alimiting value , called critical speed . "<br/> Turbulent flow: In a fluid flow ,if the velocity of the fluid changes erratically from point to point as well as from time to time ,the flow is known as a turbulent flow.<br/> If speed of fluid , becomes more to the critical speed ,this flow loses steadiness and becomes turbulent .<br/>White water rapids : When a fast flowing stream encounters <a href="https://interviewquestions.tuteehub.com/tag/rocks-1190591" style="font-weight:bold;" target="_blank" title="Click to know more about ROCKS">ROCKS</a> , small foamy whirlpool like regions called white water rapids are formed <br/> <img src="https://doubtnut-static.s.llnwi.net/static/physics_images/KPK_AIO_PHY_XI_P2_C10_E01_033_S01.png" width="80%"/><br/>(a) Some streamlines for fluid flow.<br/>A jet of air striking a <a href="https://interviewquestions.tuteehub.com/tag/flat-992377" style="font-weight:bold;" target="_blank" title="Click to know more about FLAT">FLAT</a> <a href="https://interviewquestions.tuteehub.com/tag/plate-1156364" style="font-weight:bold;" target="_blank" title="Click to know more about PLATE">PLATE</a> placed perpendicular to it .This is an example of turbulent flow.</body></html>


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