Constant Wall Temperature Entry Length Laminar Plow of and Heat Transfer to a Non-Newtonian Fluid in a Square Duct

Chandrupatla, Ashok R.; Sastri, V. M. K.

doi:10.1615/ihtc6.1450

Cited by 5 publications

(2 citation statements)

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“…The entrance region flow and heat transfer to a constant property Newtonian fluid flowing in an isothermal pipe has also been simulated. The mean Nusselt numbers for developing flow of a power law fluid in a square duct agreed with the constant property results of Chandrupatla and Sastri, 1978, despite the differences in the analyses. Other essential parts of the code have similarly been validated.…”

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confidence: 68%

Forced convection heat transfer to a power‐law fluid in arbitrary cross‐section ducts

Lawal

Mujumdar

1984

Can J Chem Eng

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A numerical method is developed to predict the three‐dimensional forced convection laminar incompressible flow of a power law fluid in arbitrary cross‐section straight ducts. The continuity equation and boundary layer forms of the energy and momentum equations in rectangular coordinates are transformed into new orthogonal coordinates with boundaries coinciding with the coordinate surfaces. The resulting equations are solved using the finite difference technique. The numerical scheme is capable of handling different hydrodynamic and thermal entry boundary conditions but results are only presented for uniform inlet velocity and temperature profiles and isothermal wall. To demonstrate the wider applicability of the method local heat transfer coefficients and pressure drop in square, trapezoidal and regular pentagonal ducts are computed as functions of pertinent thermal and hydrodynamic parameters.

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