Influence of gas fraction on wall-to-liquid heat transfer in dense bubbly flows

Panda, A.; Weitkamp, Yela Ezra Johannis; Rajkotwala, A.H.; Peters, E.A.J.F.; Baltussen, M.W.; Kuipers, J.A.M.

doi:10.1016/j.cesx.2019.100037

Cited by 4 publications

(8 citation statements)

References 31 publications

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“…The simulations considered target bubble swarms and turbulent bubbly channel flows. This presentation demonstrates the performance of this algorithm in comparison to other DNS benchmark in the literature: Panda [3] (pure diffusion around a spherical inclusion), Kawamura [4] (single-phase channel flow) and Dabiri and Tryggvason [5] (bubbly channel flow). Then, original results in bubble swarm simulations are presented for various thermal properties.…”

Section: Extended Abstractmentioning

confidence: 75%

Modelling Of Heat Transfer In Turbulent Bubbly FlowsUsing Direct Numerical Simulations

Aymeric¹,

Bois²,

Toutant³

2021

Proceedings of the 6th World Congress on Momentum, Heat and Mass Transfer

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Section: Extended Abstractmentioning

confidence: 75%

Modelling Of Heat Transfer In Turbulent Bubbly FlowsUsing Direct Numerical Simulations

Aymeric¹,

Bois²,

Toutant³

2021

Proceedings of the 6th World Congress on Momentum, Heat and Mass Transfer

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“…To the best of our knowledge, this expression is original, the usual mean used being a classical arithmetic mean, ρc p a = I l ρc p l + I v ρc p v . This new expression is used with success in simulations without convection (on a comparison with Panda et al [59], see Sec. 1.8).…”

Section: Finite Volume Formulation Choicesmentioning

confidence: 99%

Conservative formulations for heat transfer simulation with sharp interfaces and discontinuous properties in two-phase flows

Sonolet¹,

Bois²,

Toutant

2023

Computers & Fluids

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“…The volumetric heat capacity ratio between gas and liquid is set to 1 Â 10 À2 . In Panda et al (2019), the influence of the gas fraction on the wall-to-liquid heat transfer is analyzed, where the volumetric heat capacity ratio between gas and liquid ranges from 2 Â 10 À3 to 1.7 Â 10 À2 . In the studies of Nas et al (2006) on the thermocapillary migration in both two-dimensional (2D) and three-dimensional (3D) flows, the volumetric heat Numerical scheme of heat transfer in two-fluid flows capacity ratio between gas and liquid is set to 0.25.…”

Section: Introductionmentioning

confidence: 99%

A robust scheme for numerical simulation of heat transfer in two-fluid flows with high volumetric heat capacity contrasts

Yang²,

He³

2022

HFF

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Purpose This paper aims to propose a new method for robust simulations of passive heat transfer in two-fluid flows with high volumetric heat capacity contrasts. Design/methodology/approach This paper implements a prediction–correction scheme to evolve the volumetric heat capacity. In the prediction substep, the volumetric heat capacity is evolved together with the temperature. The bounded downwind version of compressive interface capturing scheme for arbitrary meshes and central difference scheme are used for the spatial discretization of the advection and diffusion terms of the heat transfer equation, respectively. In the correction substep, the volumetric heat capacity is updated in accordance with the interface captured by using a coupled level-set and volume-of-fluid method to capture the interface dynamics precisely. Findings The proposed method is verified by simulating the advection of a hot droplet with high volumetric heat capacity, a stationary air–water tank with temperature variation between top and bottom walls and heat transfer during wave plunging at Re=108. The test results show that the proposed method is practical and accurate for simulating two-fluid heat transfer problems, especially for those feature high volumetric heat capacity contrasts. Originality/value To ensure the numerical stability, this paper solves an additional conservative form of volumetric heat capacity equation along with the conservative form of temperature equation by using consistent spatial-discretization and temporal-integration schemes.

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Influence of gas fraction on wall-to-liquid heat transfer in dense bubbly flows

Cited by 4 publications

References 31 publications

Modelling Of Heat Transfer In Turbulent Bubbly FlowsUsing Direct Numerical Simulations

Modelling Of Heat Transfer In Turbulent Bubbly FlowsUsing Direct Numerical Simulations

Conservative formulations for heat transfer simulation with sharp interfaces and discontinuous properties in two-phase flows

A robust scheme for numerical simulation of heat transfer in two-fluid flows with high volumetric heat capacity contrasts

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