Effect of coil pitch and cross-sectional ellipticity on RTD for diffusion-free laminar flow in coiled tubes

The effect of coil pitch and the cross-sectional ellipticity on residence time distribution (RTD) for diffusion-free laminar flow in helically coiled tubes has been studied. The numerically computed RTDs reveal that the increase in the coil pitch broadens the RTD while the increase in the cross-sectional ellipticity narrows the RTD. The condition under which the effect of coil pitch on RTD can be ignored has been reported.

[1]  R. Trivedi,et al.  RTD for diffusion free laminar flow in helical coils , 1974 .

[2]  John Eustice,et al.  Flow of water in curved pipes , 1910 .

[3]  Krishna D.P. Nigam,et al.  On RTD for laminar flow in helical coils , 1979 .

[4]  V. R. Ranade,et al.  THE RESIDENCE TIME DISTRIBUTION FOR LAMINAR FLOW OF NON-NEWTONIAN LIQUIDS THROUGH HELICAL TUBES , 1981 .

[5]  J. Eustice.  Experiments on stream-line motion in curved pipes , 1911 .

[6]  Krishna D.P. Nigam,et al.  Laminar dispersion in helically coiled tubes of square cross‐section , 1983 .

[7]  R. Iyer.  Laminar dispersion in helical coils , 1981 .

[8]  E. Nauman.  The residence time distribution for laminar flow in helically coiled tubes , 1977 .

[9]  Stuart W. Churchill,et al.  FULLY DEVELOPED LAMINAR FLOW IN A HELICALLY COILED TUBE OF FINITE PITCH , 1980 .

[10]  K. Nigam,et al.  RTD for diffusion-free laminar flow of non-newtonian fluids through coiled tubes , 1983 .

[11]  Douglas M. Ruthven,et al.  The residence time distribution for ideal laminar flow in helical tube , 1971 .

[12]  B. Joseph,et al.  Numerical treatment of laminar flow in helically coiled tubes of square cross section. Part I. Stationary helically coiled tubes , 1975 .

[13]  W. R. Dean.  LXXII. The stream-line motion of fluid in a curved pipe (Second paper) , 1928 .

[14]  L. C. Truesdell,et al.  Numerical treatment of fully developed laminar flow in helically coiled tubes , 1970 .

[15]  J. D. Seader,et al.  Fully developed viscous flow in coiled circular pipes , 1973 .

[16]  C. Y. Wang,et al.  On the low-Reynolds-number flow in a helical pipe , 1981, Journal of Fluid Mechanics.

[17]  W. R. Dean.  XVI. Note on the motion of fluid in a curved pipe , 1927 .