Premium
Laminar flow heat transfer
Author(s) -
Christiansen E. B.,
Jensen Gordon E.,
Tao FanSheng
Publication year - 1966
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690120627
Subject(s) - laminar flow , thermodynamics , heat transfer , laminar flow reactor , thermal conductivity , mechanics , flow (mathematics) , chemistry , newtonian fluid , tube (container) , heat transfer coefficient , constant (computer programming) , materials science , physics , open channel flow , composite material , computer science , programming language
Numerical solutions of the equations of motion and energy for the heating of non‐Newtonian fluids in rectilinear, axisymmetric laminar flow in tubes of circular cross section are extended to the case of cooling at constant tube‐wall temperature. The fluid density, heat capacity, and thermal conductivity are assumed constant, but the flow properties are represented by the temperature‐dependent equation τ = m (Ṡ exp Δ H ‡/ RT ) n . The results are presented as plots of average N Nu vs. N Gz , with flow and temperature‐effect indices as parameters. The mean deviation of experimental data for the cooling of aqueous CMC and carbopol dispersions from the numerical solutions is ±8%.