Fully developed laminar mixed convection in uniformly heated pipes

Muzzio, A.; Parolini, P.

doi:10.1007/bf01539501

Cited by 4 publications

(1 citation statement)

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“…They pointed out the increase of heat transfer coefficient in presence of mixed convection. Numerical simulation of fully developed laminar mixed convection by Muzzio and Parolini (1994) shows that the natural convection can affect both mass flow rate and heat transfer to a great extent. Furthermore the large angular variation of the Nusselt number illustrated the non-uniformity of wall temperature in a cross section.…”

Section: Thermal Performances and Heat Transfer Correlationsmentioning

confidence: 99%

Influence of flow regime and thermal power on residence time distribution in tubular Joule Effect Heaters

Fillaudeau¹,

Le-Nguyen²,

André³

2009

Journal of Food Engineering

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Section: Thermal Performances and Heat Transfer Correlationsmentioning

confidence: 99%

Influence of flow regime and thermal power on residence time distribution in tubular Joule Effect Heaters

Fillaudeau¹,

Le-Nguyen²,

André³

2009

Journal of Food Engineering

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Simultaneous Optimization of Shape and Flow Parameters for Combined Free and Forced Convection in Vertical Channels

Meriç

1997

Int. J. Numer. Meth. Engng.

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Simultaneous optimization of shape and flow parameters is performed for a combined free and forced convection flow through vertical rectangular channels with moving walls. The laminar flow is assumed to be fully developed in the axial direction. The wall velocity, the axial pressure gradient and the channel height in the transverse plane are taken as the optimization parameters. The sensitivity expressions of both the objective function and the flow rate constraint of optimization are obtained in terms of the relevant physical variables, as well as adjoint variables which satisfy additional p.d.e.'s. All equations are discretized using the finite element method. Numerical results are provided for the present constrained optimization problem for various values of the problem parameters which include the moving wall segment size and the Rayleigh number. The results indicate that with increased Rayleigh number the optimal values of the wall velocity and the axial pressure gradient are increased, while the optimal value of the channel height is decreased. General sensitivity expressions are also presented in the appendix which might be utilized for arbitrary boundary variations along with arbitrary optimization objectives in other investigations.

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Experiment-based visualization of characteristics of secondary flow phenomenon in horizontal heating tubes

Zhang

2020

International Journal of Heat and Mass Transfer

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Fully developed laminar mixed convection in uniformly heated pipes

Cited by 4 publications

References 4 publications

Influence of flow regime and thermal power on residence time distribution in tubular Joule Effect Heaters

Influence of flow regime and thermal power on residence time distribution in tubular Joule Effect Heaters

Simultaneous Optimization of Shape and Flow Parameters for Combined Free and Forced Convection in Vertical Channels

Experiment-based visualization of characteristics of secondary flow phenomenon in horizontal heating tubes

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