shear rate

listen to the pronunciation of shear rate
İngilizce - Türkçe
(Reoloji) Kayma hızı, akma hızı
(Tıp) kayma hızı
İngilizce - İngilizce
Rate at which adjacent layers of fluid move with respect to each other, usually expressed as reciprocal seconds
Measure of the rate at which a solder cream is disturbed, e g by stirring or other flow processes
Shear rate is a way to describe how quickly the velocity of the melt changes from the mould surface to the center of flow for a given cross section The size of the shear rate gives an indication of the shape of the velocity profile for a given situation
the rate at which a layer of melt slides over the layer below Shear rate is velocity-related rather than force- related
The velocity gradient i e velocity/gap measured in reciprocal seconds, s-1 In screw extruder channels the shear rate can usually reach 100s-1 or more In flow through extrusion dies it might reach 500s-1 or more while in injection molding more than 5000s-1
– The velocity gradient in shear The overall velocity over the cross section of a channel with which the fluid layers are gliding along each other or along the wall in laminar flow
rate at which adjacent layers of fluid move with respect to each other, usually expressed as reciprocal seconds (also see shear stress ) When the fluid is placed between two parallel surfaces moving relative to each other
shear rate