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In civil Engineering (Drainage works), What is the mechanism of cavitation in pipes and drains?

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تم إضافة السؤال من قبل Muhammad Shakeel , CAD Design Manager , M/S zeeruk Intl.
تاريخ النشر: 2015/02/24
salman Ahmed khan
من قبل salman Ahmed khan , CAD TECHNICIAN , ProMag Pvt Ltd

No Cavitation in Storm Water Because Water Going by the Flow, Cavitation will appear at pressure pipe due to change in pipes slope

SITARAMBABU GARIMELLA
من قبل SITARAMBABU GARIMELLA , RESIDENT ENGINEER DRAINAGE DESIGN , AECOM ASIA COMPANY LTD

Cavitation in pipes is caused by air entrapment.

Prajwal Menezes
من قبل Prajwal Menezes

Cavitation in pipes are caused by air entrapment in the pipes mainly due to sudden high points after a steady lower slopes. Generally, a pipe runs 75% full and rest is air. These air pockets can clause bockage in sewage pipes. Appropriate venting should be provided to eliminate these air pockets.

Velocities in the main runs of drainage pipes should be designed without excessive slopes to control the velocity so reduce the risk of damage due to abrasive scour and in extreme cases pressure reduction causing cavitation. Cavitation is usually only a problem in the pumps. 

sanjay jaison
من قبل sanjay jaison , PROJECT ENGINEER , NPC -National Projects&Construction LLC

It is the formation of Air bubbles in the liquid when the liquid flows  from a low velocity state to a high velocity resulting in the formation of bubbles in the couplers joints and can cause damages to drain systems too.

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