Experimental study and numerical models assessment of turbulent mixed convection heat transfer in a vertical open cavity

Yang, Guang; Huang, Yiye; Wu, J.Y.; Zhang, Liangjun; Chen, Guozhen; Lv, Rongrong; Cai, Aifeng

doi:10.1016/j.buildenv.2017.01.016

Cited by 19 publications

(5 citation statements)

References 34 publications

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“…In this work, we develop a data-driven surrogate model (DDSM), which is based on the data from CFD simulations. The model predicts comfortrelated airflow parameters in a ventilated room with a heated floor, which is a classical benchmark test case used by many researchers in the field of indoor environmental simulations [24,25,26,27] for testing of novel simulation methods. We have chosen this test configuration because of the challenges it presents (the mixture of natural and forced convection) and because of the availability of both experimental [28] and direct numerical simulation (DNS) CFD [1] data for validation.…”

Section: Introductionmentioning

confidence: 99%

A CFD-based surrogate model for predicting flow parameters in a ventilated room using sensor readings

Morozova

Trias

Capdevila

et al. 2022

Energy and Buildings

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Section: Introductionmentioning

confidence: 99%

A CFD-based surrogate model for predicting flow parameters in a ventilated room using sensor readings

Morozova

Trias

Capdevila

et al. 2022

Energy and Buildings

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“…Hinojosa et al [11] analyzed the experimental and numerical results of the heat transfer and air flow by combined by free convection and forced convection for turbulent regime in a vented cavity. Experimentally and numerically, Yang et al [12] investigated the flow structures and heat transfer in a vertical open cavity with turbulent mixed convection. Koufi et al [13] studied the numerical simulation of the turbulent mixed convection in vented cavities with change of inlet and outlet flow location.…”

Section: Introductionmentioning

confidence: 99%

Ventilation of Square Cavity Containing a Heat Source

Chati

Bouabdallah

Ghernaout

2021

DDF

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A numerical simulation of turbulent mixed convection of a ventilated cavity containing a heat source placed of the center has been carried out. This cavity is outfitted along couple holes: one placed within the lower left corner and the other in the top right corner. The width of the hole "H" represents is 1/5 of the length of the cavity side. The diameter regarding the round heat source "D" is equal in accordance with the breadth of the inlet gap’s H (D = H). The walls of the cavity considered are maintained adiabatic, while the temperature of the heat source T is higher than the ambient temperature. The turbulence model k-ε was used for governing equations of turbulent mixed convection inside the cavity. The finite volume method was used for numerical resolution. The parameters of flow are: the Grashof number is set to Gr = 109 and the Reynolds number (Re) varies so that the number of Richardson (Ri) takes the values Ri = 0.01, 0.05, 0.1, 1, 2, 5, 10, 20 and 30 (Ri = Gr/ Re2). The effect of thermo-dynamic parameters and the shape geometric cavity effect are investigated.

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“…Experimentally and numerically, Yang et al [12] investigated turbulent mixed convection in a vertical open cavity. Turbulent mixed convection in a vented cavity was undertaken in [13] focusing on the effect of position of inlet and outlet slots on the ventilation efficacy of air to determine the optimum configuration.…”

Section: Introductionmentioning

confidence: 99%

3D Forced Convection in a Box Containing Two Cylindrical Heat Sources

Bouabdallah¹,

Ghernaout²,

Bellaouar³

et al. 2020

AMA_B

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Forced convection is a special type of heat transfer in which fluids are forced to move, in order to increase the heat transfer. The aim of this study is to investigate in a numerical simulation of forced convection in a cubic cavity containing two cylindrical heat sources in the middle. The cavity is subjected to an inflow of air inlet from the left and an outlet flow from the right side with the same dimensions of the opening doors (0.1 H). The walls of the cavity are maintained adiabatic. The conservation equations governing the flow of forced convection are solved using the finite volume method that is used by FLUENT –ANSYS Software. Also, a comparison was performed shows good agreement between the numerical results with those available in the literature (numerical, analytical and experimental). The effect of the dimension of cavity (number of Rayleigh) and the velocity of ventilation of the air (number of Reynolds), as well as the dimension between sources cylindrical are presented and discussed. The results obtained show a strong dependence between the geometrical conditions and the structure of the dynamic and thermal field of the flow of forced convection.

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Experimental study and numerical models assessment of turbulent mixed convection heat transfer in a vertical open cavity

Cited by 19 publications

References 34 publications

A CFD-based surrogate model for predicting flow parameters in a ventilated room using sensor readings

A CFD-based surrogate model for predicting flow parameters in a ventilated room using sensor readings

Ventilation of Square Cavity Containing a Heat Source

3D Forced Convection in a Box Containing Two Cylindrical Heat Sources

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