Chaotic phenomena of natural convection for water in a V-shaped enclosure

Bhowmick, Sidhartha; Xu, Feng; Molla, Md. Mamun; Saha, Suvash C.

doi:10.1016/j.ijthermalsci.2022.107526

Cited by 13 publications

(8 citation statements)

References 52 publications

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“…After adding the aforementioned dimensionless variables, Equations ( 1)-( 4) become (for details see Ref. [10])…”

Section: Problem Formulationsmentioning

confidence: 99%

“…Natural convection flows within V-shaped triangle enclosures with opposite boundary conditions appeared to be well studied due to their natural presence. Transitions from symmetric steady to asymmetric unsteady flow were studied by Bhowmick et al [9,10] in a V-shaped triangular enclosure heated from below and cooled from the top for both air and water. Different flow mechanisms were found for the different fluids.…”

Section: Introductionmentioning

confidence: 99%

“…Different flow mechanisms were found for the different fluids. Wang et al [11] has experimented with natural convection in a V-shaped enclosure with the same boundary conditions of [10].…”

Section: Introductionmentioning

confidence: 99%

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Unsteady Natural Convection in an Initially Stratified Air-Filled Trapezoidal Enclosure Heated from Below

et al. 2022

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Natural convection is intensively explored, especially in a valley-shaped trapezoidal enclosure, because of its broad presence in both technical settings and nature. This study deals with a trapezoidal cavity, which is initially filled with linearly stratified air. Although the sidewalls remain adiabatic, the bottom wall is heated, and the top wall is cooled. For the stratified fluid (air), the temperature of the fluid adjacent to the top and the bottom walls is the same as that of the walls. Natural convection in the trapezoidal cavity is simulated in two dimensions using numerical simulations, by varying Rayleigh numbers (Ra) from 100 to 108 with constant Prandtl number, Pr = 0.71, and aspect ratio, A = 0.5. The numerical results demonstrate that the development of natural convection from the beginning is dependent on the Rayleigh numbers. According to numerical results, the development of transient flow within the enclosure owing to the predefined conditions for the boundary may be categorized into three distinct stages: early, transitional, and steady or unsteady. The flow characteristics at each of the three phases and the impact of the Rayleigh number on the flow’s growth are quantified. Unsteady natural convection flows in the enclosure are described and validated by numerical results. In addition, heat transfer through the bottom and the top surfaces is described in this study.

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“…After adding the aforementioned dimensionless variables, Equations ( 1)-( 4) become (for details see Ref. [10])…”

Section: Problem Formulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Unsteady Natural Convection in an Initially Stratified Air-Filled Trapezoidal Enclosure Heated from Below

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Natural convection flows within V-shaped triangle enclosures with opposite boundary conditions appeared to be well-studied due to their natural presence. Transitions from symmetric steady to asymmetric unsteady flow were studied by Bhowmick et al [9,10] in a V-shaped triangular enclosure heated from below and cooled from the top for both air and water. Different flow mechanisms have found for the different fluids.…”

Section: Introductionmentioning

confidence: 99%

“…Different flow mechanisms have found for the different fluids. Wang et al [11] has experimented with natural convection in a V-shaped enclosure with the same boundary conditions of [10].…”

Section: Introductionmentioning

confidence: 99%

Unsteady Natural Convection in An Initially Stratified Air-filled Trapezoidal Enclosure Heated from below

Mahafujur¹,

Bhowmick²,

Mondal³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

Natural convection is intensively explored, especially in a valley-shaped trapezoidal enclosure, because of its broad presence in both technical settings and nature. This study deals with a trapezoidal cavity, which is initially filled with linearly stratified air. Though the side walls remain adiabatic, the bottom wall is heated, and the top wall is cooled. For the stratified fluid (air), the temperature of the fluid adjacent to the top and the bottom walls is the same as that of the walls. Natural convection in the trapezoidal cavity is simulated in two dimensions using numerical simulations, by varying Rayleigh numbers (Ra) from 100 to 108 with constant Prandtl number, Pr = 0.71, and aspect ratio, A = 0.5. According to numerical results, the development of transient flow within the enclosure owing to the predefined conditions for boundary may be categorized into three distinct stages: early, transitional, and steady or unsteady. The flow characteristics at each of the three phases and the impact of the Rayleigh number on the flow’s growth are stated in this study. In addition, heat transfer through the bottom and the top surfaces is described in this study.

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Numerical simulation of combined convection and radiation heat transfer in a hybrid nanofluid inside an open fins cavity under a magnetic field

Redouane,

Rachid,

Abdelkader

2024

J Therm Anal Calorim

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Chaotic phenomena of natural convection for water in a V-shaped enclosure

Cited by 13 publications

References 52 publications

Unsteady Natural Convection in an Initially Stratified Air-Filled Trapezoidal Enclosure Heated from Below

Unsteady Natural Convection in an Initially Stratified Air-Filled Trapezoidal Enclosure Heated from Below

Unsteady Natural Convection in An Initially Stratified Air-filled Trapezoidal Enclosure Heated from below

Numerical simulation of combined convection and radiation heat transfer in a hybrid nanofluid inside an open fins cavity under a magnetic field

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