Transient Natural Convection Between Vertical Finite Length Heated Plates

Chang, Kuo-Ping; Hung, Y. H.

doi:10.2514/2.6223

Cited by 9 publications

(13 citation statements)

References 13 publications

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“…This is in accordance with the results reported in refs. [19,36,37,40]. In fact, an increase in the Rayleigh number causes an increase in convective effects with respect to the diffusive ones.…”

Section: Transient Natural Convection In Vertical Channels 415mentioning

confidence: 93%

“…A more complete description of natural convective heat transfer between vertical parallel plates should analyze the transient behaviors of the full elliptic equations on an extended computational domain. In the following, a short review of the literature on transient laminar natural convection in vertical channels [17][18][19][34][35][36][37][38][39][40] is given.…”

Section: Introductionmentioning

confidence: 99%

“…The thermal transient between the symmetrically-heated plates by considering the time variation of the imposed wall heat flux was analyzed in ref. [40]. An open cavity with permeable walls with all of the boundaries open to the surroundings, which considered only one half of the entire domain, was assumed as a computational domain.…”

Section: Introductionmentioning

confidence: 99%

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Transient Natural Convection in Vertical Channels Symmetrically Heated at Uniform Heat Flux

Andreozzi

Buonomo²,

Manca³

2009

Numerical Heat Transfer, Part A: Applications

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A numerical transient analysis of natural convection in air between two vertical parallel plates, heated at uniform heat flux, is carried out. The problem is two-dimensional and laminar and the full Navier-Stokes and energy equations are employed. The control volume method is used to discretize the equations on a uniform grid. Results are given at different aspect ratio values and Rayleigh number values. The simulation allows detection of complex structures of the flow inside and outside the channel. Temperature profiles as a function of time show an overshoot and undershoot increase at the lowest aspect ratio and highest Rayleigh number. Inside the channel conductive and convective regimes as well as an inverse fluid motion are observed. Transient average Nusselt number presents oscillations before the steady-state.

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Section: Transient Natural Convection In Vertical Channels 415mentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Transient Natural Convection in Vertical Channels Symmetrically Heated at Uniform Heat Flux

Andreozzi

Buonomo²,

Manca³

2009

Numerical Heat Transfer, Part A: Applications

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show abstract

“…The time development of the flow and the thermal structures inside the computational domain were obtained. The thermal transient between the symmetrically heated plates obtained by considering the time variation of the imposed wall heat flux was analyzed in [30]. An open cavity with permeable walls, with all the boundaries open to the surroundings, which considered only one half of the entire domain, was assumed as a computational domain.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of transient natural convection in a vertical channel-chimney system symmetrically heated at uniform heat flux

Andreozzi

Buonomo²,

Manca³

2012

International Journal of Heat and Mass Transfer

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“…It seems that numerical investigations on transient natural convection in vertical channels have been carried out only for simple channel configurations [9][10][11][12] and vertical symmetrical channel-chimney system with the channel heated symmetrically [13]. Then, there is a lack of investigations on transient natural convection in vertical asymmetrical channel-chimney system heated asymmetrically.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation on natural convection in asymmetric channel-chimney systems

Andreozzi¹,

Buonomo²,

Manca³

2007

WIT Transactions on Modelling and Simulation, Vol 46

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A numerical investigation on two-dimensional transient natural convection in a vertical channel-chimney system with the channel heated asymmetrically and the chimney geometrically asymmetric is carried out. The heated channel wall is at uniform heat flux and the other one is assumed to be adiabatic. The chimney walls are adiabatic. Results are obtained for different expansion and extension ratios of the channel-chimney system and Rayleigh number equal to 10 4 and 10 6 . They are presented in terms of maximum heated wall temperatures and average Nusselt number as a function of time and stream function fields for some time values. Optimal thermal configurations in terms of minimum value of maximum heated wall temperature and maximum average Nusselt numbers are evaluated. Complex flow structures in the channel-chimney system are detected.

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Transient Natural Convection Between Vertical Finite Length Heated Plates

Cited by 9 publications

References 13 publications

Transient Natural Convection in Vertical Channels Symmetrically Heated at Uniform Heat Flux

Transient Natural Convection in Vertical Channels Symmetrically Heated at Uniform Heat Flux

Numerical investigation of transient natural convection in a vertical channel-chimney system symmetrically heated at uniform heat flux

Numerical investigation on natural convection in asymmetric channel-chimney systems

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