Document Type
Thesis
Date of Award
1-31-1981
Degree Name
Master of Science in Mechanical Engineering - (M.S.)
Department
Mechanical Engineering
First Advisor
Rong-Yaw Chen
Second Advisor
Jui Sheng Hsieh
Third Advisor
Hans E. Pawel
Abstract
The deposition of suspensions in a vertical converging tube with significant gravity effects Was investigated theoretically with control volume - finite difference approach. The fluid was assumed to be incompressible and laminar. The particle density was assumed to be uniform at the inlet of the. tube. The velocity profiles for the fluid considered were (a) Uniform profile, (b) Parabolic profile. The angles of convergence studied were 0°, 5° and 7°. Effects of velocity ratio δ*(=terminal velocity/mean flow velocity) on the rate of deposition were investigated for δ*=0,1,10.
It was found that deposition increases with increasing angle of convergence. Moreover, for a given velocity ratio the deposition of an uniform flow is higher than that of parabolic flow. In the case of uniform flow, an increase of velocity ratio resulted in decrease in deposition. In case of parabolic flow, an increase of deposition δ*= 1 was observed. At δ*= 10 a slight increase of deposition at the inlet section of the tube was observed and then deposition gradually fell below those of δ* = 0.
Recommended Citation
Chan, Kam-Ho, "Deposition of suspensions in a vertical converging tube" (1981). Theses. 3606.
https://digitalcommons.njit.edu/theses/3606
