Transient Natural Convection in a Cylindrical Annulus

Ramamurthi, K.; Ravi, K.

doi:10.2514/2.6288

Journal of Thermophysics and Heat Transfer

1997

DOI: 10.2514/2.6288

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Transient Natural Convection in a Cylindrical Annulus

K. Ramamurthi

K. Ravi

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Cited by 3 publications

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“…El-Shaarawi and Al-Nimr [4] further developed solutions for several combinations of boundary conditions. Extensions to vertical transient annular flow [5,6], and flow in eccentric annuli [7,8] were made. Velocity slip and temperature jump are not taken into account in these studies.…”

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Natural Convection in a Vertical Microannulus with Superhydrophobic Slip and Temperature Jump

Wang

2014

Journal of Thermophysics and Heat Transfer

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Analytical solutions are derived for steady fully-developed buoyancy-driven flow in a vertical annular microchannel, of which either the inner or outer wall exhibits superhydrophobic velocity slip and temperature jump, and the inner wall is maintained either at constant wall temperature or constant heat flux. For the four possible cases of hydrodynamic and thermal boundary conditions, we determine the flow rate as a function of the core size, slip length and temperature jump coefficient. Asymptotic limits are obtained for very large slip and temperature jump. The effects of slip and temperature jump on two issues, namely, the optimum core radius for maximum flow rate and the singular increase of the flow rate for very small core radius, are investigated in particular.

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Natural Convection in a Vertical Microannulus with Superhydrophobic Slip and Temperature Jump

Wang

2014

Journal of Thermophysics and Heat Transfer

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Heat transfer — a review of 1997 literature

Eckert

Goldstein²,

Ibele

et al. 2000

International Journal of Heat and Mass Transfer

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Optimization of Natural Convection in Open Vertical Ducts with Heated Cores

Wang

2010

Journal of Thermophysics and Heat Transfer

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Transient Natural Convection in a Cylindrical Annulus

Cited by 3 publications

References 4 publications

Natural Convection in a Vertical Microannulus with Superhydrophobic Slip and Temperature Jump

Natural Convection in a Vertical Microannulus with Superhydrophobic Slip and Temperature Jump

Heat transfer — a review of 1997 literature

Optimization of Natural Convection in Open Vertical Ducts with Heated Cores

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