Study On Hemline Cavitation And Reforming Measure Of The Plane Gate For Navigation Lockd

There are hemline cavitation and little-door groove cavitation in the plane gates, so plane gates are used in the navigation locks of high water level less. To widen the range of the plane gates,it is very much important for plane gates to study hemline cavitation and solving measure.Through varying valve hydraulics examination and unvarying decompression examination,we study hydraulics character and cavitation character of three hemlines and veranda bodily forms,so we can not only find more excellent hemline and veranda in them,but also obtain critical number of hemlines cavitation of them.Because there are dropping ridge cavitation and rising ridge cavitation of the enlarging veranda in the bottom,paper gives naturl aerating measure of dropping ridge and rising ridge.It is very well to avoid dropping ridge cavitation and rising ridge cavitation in the examination,and gain critical aerating condition.Thesis also studies gaps and aerifing banks of aerating measure in the lintel,sum up rules of aerating character and aerating capacity in the lintel.