Combined natural convection-FSI inside a circular enclosure divided by a movable barrier

Shahrestani, Ahmadreza B.; Alshuraiaan, Bader; Izadi, Mohsen

doi:10.1016/j.icheatmasstransfer.2021.105426

Cited by 37 publications

(12 citation statements)

References 46 publications

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“…Ahmadreza et al (2021) [ 21 ] examined the free convection of a Newtonian fluid within a partitioned circular cage with a moveable wall. The Rayleigh number (10 4 to 10 7 ) and the Prandtl number (0.71 to 200) are dimensional metrics that indicate the issue.…”

Section: Review On Circular Cavitiesmentioning

confidence: 99%

“…Figure 6 shows how distributing MWCNT-Fe3O4 hybrid nanoparticles in the host fluid improves convective heat transmission. [21] examined the free convection of a Newtonian fluid within a partitioned circular cage with a moveable wall. The Rayleigh number (10 4 to 10 7 ) and the Prandtl number (0.71 to 200) are dimensional metrics that indicate the issue.…”

Section: Figurementioning

confidence: 99%

“…Nanomaterials 2022, 12, x FOR PEER REVIEW Ahmadreza et al (2021) [21] examined the free convection of a Newtonian within a partitioned circular cage with a moveable wall. The Rayleigh number (10 4 and the Prandtl number (0.71 to 200) are dimensional metrics that indicate the issu findings show that the plate's deformation degree is proportional to the forces exer the fluid.…”

Section: Figurementioning

confidence: 99%

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Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids

et al. 2022

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Many strategies have been attempted for accomplishing the needed changes in the heat-transfer rate in closed cavities in recent years. Some strategies used include the addition of flexible or hard partitions to the cavities (to split them into various pieces), thickening the borders, providing fins to the cavities, or altering the forms or cavity angles. Each of these methods may be used to increase or decrease heat transmission. Many computational and experimental investigations of heat transport in various cavity shapes have been conducted. The majority of studies focused on improving the thermal efficiency of heat transmission in various cavity containers. This paper introduced a review of experimental, numerical, and analytical studies related to heat transfer analyses in different geometries, such as circular, cylindrical, hexagonal, and rectangular cavities. Results of the evaluated studies indicate that the fin design increased heat transmission and sped up the melting time of the PCM; the optimal wind incidence angle for the maximum loss of combined convective heat depends on the tilt angle of the cavity and wind speed. The Nusselt number graphs behave differently when decreasing the Richardson number. Comparatively, the natural heat transfer process dominates at Ri = 10, but lid motion is absent at Ri = 1. For a given Ri and Pr, the cavity without a block performed better than the cavity with a square or circular block. The heat transfer coefficient at the heating sources has been established as a performance indicator. Hot source fins improve heat transmission and reduce gallium melting time.

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Section: Review On Circular Cavitiesmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

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Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids

et al. 2022

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“…An emerging passive technique is regulating the rate of heat transfer by the interaction between fluid and structure, specifically the interplay between fluid velocity and solid distortion, known as fluid-structure interaction (FSI). The following provides a brief summary of recent research regarding the application of FSI [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] to facilitate heat exchange in various cavity systems under lid-driven conditions.…”

Section: Introductionmentioning

confidence: 99%

Fluid-structure interaction of a thin flexible heater inside a lid-driven cavity

Smriti

Das

Mahmood

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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The purpose of this study is to explore the characteristics of fluid-structure interaction and heat transfer enhancement from a hot flexible thin plate during mixed convection. The mixed convection condition of the plate heater is assumed by placing it inside a lid driven cavity with top and bottom cavity walls being fixed and insulated while left and right cavity walls maintained at constant low temperature move in downward and upward direction respectively. The Galerkin Finite Element Approach has been used to numerically solve equations describing unsteady flow, thermal and stress fields in the Arbitrary Lagrangian-Eularian (ALE) framework. Key parameters include Reynolds number ( Re) and Richardson number ( Ri), and Cauchy number ( Ca) which are varied in the range of 100 ≤ Re ≤ 500, 0.1 ≤ Ri ≤10, and 10−4 ≤ Ca ≤ 10−7 respectively. To investigate the effect of the heater’s geometry, the plate length ( l) has been varied within 0.1 ≤ l ≤ 0.7. The results have been presented in terms of the distribution of streamline and isotherm, heat transfer rate from the flexible heater as well as its deformation. The outcomes reveal that heat transfer enhances with the increase in Reynolds number and Richardson number while it degrades with the extension of the heater. Moreover, thermal frequency obtained by Fast Fourier Transform (FFT) indicates dominant peaks at higher Reynolds number and Richardson number although these become insignificant as the plate becomes rigid.

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“…Shahabadi et al 32 reported that the heat transfer rate at the hot wall do not follow the modulus Young value. Shahrestani et al 33 concluded that the overall stress exerted to the surface will be increased over 70 times by increasing the Prandtl number from 0.71 to 200. Ghalambaz et al 34 found that the pseudoplastic fluid boosts the heat transfer enhancement from the flexible heater.…”

Section: Introductionmentioning

confidence: 99%

Unsteady free convection in a composite enclosure having flexible wall

Alhashash

Saleh

2023

Advances in Mechanical Engineering

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Transient free convection in a composite enclosure having a cold flexible plate and a hot rigid plate is simulated numerically. It is assumed that the flexible plate is hyper-elastic. A porous layer with various sizes and permeabilities is attached to the rigid plate. The enclosure is filled with water. Fluid flow in the fluid domain was governed by the Navier–Stokes equations, and the flow within a saturated porous layer was governed by the Brinkman-Forchheimer extended Darcy model. The unsteady continuity, momentum, and energy equations are solved using the Arbitrary-Lagrangian-Eulerian (ALE) approach based on the fluid-structure interaction (FSI). It is found that the development of convective flow goes through initial, transitional, and stationary states. Each state interval is shifted by varying the Darcy number and Rayleigh number. In the transitional state, the deformation of the flexible parts reaches its maximum bending. The profile of the flexible plate at steady state is in a sinusoidal shape for the non-Darcy regime, while it is in an asymmetric parabolic shape for the Darcy regime. The steady state is reached for [Formula: see text], [Formula: see text], and [Formula: see text] before [Formula: see text].

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Combined natural convection-FSI inside a circular enclosure divided by a movable barrier

Cited by 37 publications

References 46 publications

Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids

Review of Heat Transfer Analysis in Different Cavity Geometries with and without Nanofluids

Fluid-structure interaction of a thin flexible heater inside a lid-driven cavity

Unsteady free convection in a composite enclosure having flexible wall

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