Numerical simulation of unsteady mixed convection in a driven cavity using an externally excited sliding lid

Khanafer, Khalil; Al-Amiri, Abdalla M.; Pop, Ioan

doi:10.1016/j.euromechflu.2006.06.006

Cited by 150 publications

(48 citation statements)

References 16 publications

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“…They studied the effect of aspect ratio and concluded that at higher values of aspect ratios, Nu is increased more with the increase of the volume fraction of nanoparticles. Khanafer et al [14] numerically studied unsteady mixed convection of a simple fluid in a cavity using a lid sliding sinusoidally. They showed that the Reynolds and Grashof numbers have a profound effect on the structure of fluid flow and heat transfer fields.…”

Section: Islamicmentioning

confidence: 99%

Periodic mixed convection of a nanofluid in a cavity with top lid sinusoidal motion

Karimipour

Nezhad

Behzadmehr

et al. 2011

Proceedings of the Institution of Mechanical Engineers, Part C:

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Abstract-The periodic mixed convection of a water-copper nanofluid inside a rectangular cavity with aspect ratio of 3 is investigated numerically. The temperature of the bottom wall of the cavity is assumed greater than the temperature of the top lid which oscillates horizontally with the velocity defined as u = u 0 sin (ω t). The effects of Richardson number, Ri, and volume fraction of nanoparticles on the flow and thermal behavior of the nanofluid are investigated. Velocity and temperature profiles, streamlines and isotherms are presented. It is observed that when Ri < 1, heat transfer rate is much greater than when Ri > 1. The higher value of Ri corresponds to a lower value of the amplitude of the oscillation of Nu m in the steady periodic state. Moreover, increasing the volume fraction of the nanoparticles increases the heat transfer rate.

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Section: Islamicmentioning

confidence: 99%

Periodic mixed convection of a nanofluid in a cavity with top lid sinusoidal motion

Karimipour

Nezhad

Behzadmehr

et al. 2011

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…The stream line and isotherm plots and the variation of the local and average Nusselt numbers at the hot and cold walls are presented. Khanafer et al [4] investigated numerically unsteady laminar mixed convection heat transfer in a lid driven cavity. In addition, the two vertical walls of the enclosure are kept insulated.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Study of Mixed Convection in Square Lid-Driven with Internal Elliptic Body and Constant Flux Heat Source on the Bottom Wall

et al. 2017

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The mixed convection in square lid-driven with internal elliptic body and constant flux heat source on the bottom wall is numerically simulated in this paper following a finite element method approach. The left moving wall and right moving wall are cold. The upper wall is insulated and so is the lower wall with heat flux located in the middle. The magnetic field of strength B is applied parallel to x-axis. Result is presented for different Richardson numbers (0.01 ≤ Ri ≤ 10) when Grashof numbers are (10 ≤ Gr ≤ 50) and Prandtl number is taken as Pr = 0.733 for all computations. The influence of the Richardson number on heat source surface is being investigated in this paper. Results are presented in the form of streamline and isotherm plots as well as the variation of the maximum temperature and Nusselt number at the heat source surface under different conditions. A detailed analysis of flow pattern shows that the mixed convection is based on the parameters Richardson number (Ri), Grashof number (Gr) and Reynolds number (Re).

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“…They concluded that heat transfer within the cavity is independent of the Richardson numbers from 0.1 to 1000. Khanafer et al [2] numerically examined mixed convection heat transfer in a lid-driven cavity. They obtained that the Reynolds number and Grashof number would either enhance or retard the energy transport process and drag force behavior depending on the conduct of the velocity cycle.…”

Section: Introductionmentioning

confidence: 99%

Mixed convection in a lid-driven cavity with sinusoidal boundary temperature at the bottom wall in the presence of magnetic field

Sivasankaran

Ananthan²,

Hakeem

2016

Scientia Iranica

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Abstract. Mixed convection heat transfer in a lid-driven square cavity with sinusoidal boundary temperature at the bottom wall in the presence of magnetic eld is investigated, numerically. The top wall is preserved at a lower temperature. The left and right sidewalls of the cavity are thermally insulated. Finite volume method is used to solve the mass, momentum, and energy equations. The heat transfer rate is examined by varying the dimensionless parameters of Richardson number and Hartmann number. The uid ow and the heat transfer rate are strongly a ected inside the cavity by the presence of magnetic eld.

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Numerical simulation of unsteady mixed convection in a driven cavity using an externally excited sliding lid

Cited by 150 publications

References 16 publications

Periodic mixed convection of a nanofluid in a cavity with top lid sinusoidal motion

Periodic mixed convection of a nanofluid in a cavity with top lid sinusoidal motion

A Numerical Study of Mixed Convection in Square Lid-Driven with Internal Elliptic Body and Constant Flux Heat Source on the Bottom Wall

Mixed convection in a lid-driven cavity with sinusoidal boundary temperature at the bottom wall in the presence of magnetic field

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