Concentration distributions in laminar pipe flow with distorted velocity profiles

Abstract

A laminar flow field in which the velocity profile may be distorted in a predictable manner was achieved in a 7-cm porous pipe with uniform wall injection over the ranges of variables: 0 5 I. 5 2, 200 S NRr S 800 and 0.05 5 X 5 0.2.

Concentration profiles in laminar‐flow tubular reactor with wall injection

“…The precision of the numerical solution given previously was tested by applying it to a simplified version of the present problem; that is, the case of laminar flow with wall injection but without chemical reaction. For this simpler case, the analytical solution is readily obtainable (Jain and Chen, 1981). The deviation between these two sets of calculated results was found to be less than I%.…”

“…Values of these constants for air-ethane system were presented in a previous study (Jain and Chen, 1981). Combining Equations (4), (5) and (6) yield .4 -6 .8 1.…”

“…For first-order reactions, Equation (7) is a linear partial differential equation for which an analytical solution can be obtained on the basis of the results of Jain and Chen (1981).…”