Studies on the Flow of the Viscose through the Casting-Hopper of Cellophane Making Machine
II.On the Flow Equation of Viscose through the Lips of Casting-Hopper
1956 Volume 13 Issue 134 Pages 237-242
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1956 Volume 13 Issue 134 Pages 237-242
The flow of viscose through the lips of Casting-Hopper is considered the same in its state as the flow between two parallel plates.Therefore, in the casting hopper test, the relation between total rate of discharge Q and the difference of pressure ΔP has been deduced from the fundamental flow equation of viscose reported previously:
Q=L/η* [(S/2) 3 (2/3l)ΔP+ (S/2) n+2 (2m/n+2)ΔPn/ln]
In the above equation the rate of discharge Q was calculated by using n, m, η* obtained in the flow test through the pipe, and which was found to be in conformity with the observed data given at the Casting-Hopper.
