Effect of a Passive Disturbance on the Flow Structure and Heat Transfer in the Separation Region Behind a Backward-Facing Step

Barsukov, A V; Терехов, В. И.

doi:10.1134/s0018151x21010028

High Temp

2021

DOI: 10.1134/s0018151x21010028

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Effect of a Passive Disturbance on the Flow Structure and Heat Transfer in the Separation Region Behind a Backward-Facing Step

A V Barsukov

В. И. Терехов

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2024

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Cited by 3 publications

References 15 publications

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Numerical simulation of flow dynamics and heat transfer in a rectangular channel with periodic ribs on one of the walls

Barsukov

Терехов

2021

J. Phys.: Conf. Ser.

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The result of numerical simulation of a turbulent flow in a flat channel with a periodic transverse rib by the RANS and LES methods is presented. The Reynolds number, calculated from the rib height and the superficial velocity, is Re = 12600. The data obtained as a result of the study demonstrate the influence of the modeling method and the turbulence model on the quality of heat transfer prediction. The optimal model for this type of problems is presented.

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Numerical simulation of flow dynamics and heat transfer in a rectangular channel with periodic ribs on one of the walls

Barsukov

Терехов

2021

J. Phys.: Conf. Ser.

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Numerical Study of Heat Transfer in a Lattice Matrix with Varying the Crossing Angle

Barsukov,

Terekhov,

Terekhov

2024

J. Engin. Thermophys.

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Numerical Study of Flow Downstream a Step with a Cylinder Part 2: Effect of a Cylinder on the Flow over the Step

Abdollahpour

Gualtieri

Vetsch

et al. 2023

Fluids

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In this study, divided into two parts, the effect on a two-dimensional backward-facing step flow (BFSF) of a cylinder placed downstream of the step was numerically investigated. While in Part 1, the numerical simulations carried out without the cylinder were validated using the available literature data, in Part 2 the effect of the cylinder was investigated. In the laminar regime, different Reynolds numbers were considered. In the turbulent regime, the effects on the flow structure of a cylinder placed at different horizontal and vertical locations downstream of the step were comparatively studied. When the cylinder was positioned below the step edge mid-plane, flow over the step was not altered by a cylinder. However, in other locations of a cylinder, the added cylinder modified the structure of flow, increasing the skin friction coefficient in the recirculation zone. Furthermore, the pressure coefficient of the bottom wall increased immediately downstream of the cylinder and farther downstream of the reattachment point and remained stable in the flow recovery process. Moreover, the presence of the step significantly influenced the dynamics of the vortex generation and shedding leading to an asymmetric wake distribution.

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Effect of a Passive Disturbance on the Flow Structure and Heat Transfer in the Separation Region Behind a Backward-Facing Step

Cited by 3 publications

References 15 publications

Numerical simulation of flow dynamics and heat transfer in a rectangular channel with periodic ribs on one of the walls

Numerical simulation of flow dynamics and heat transfer in a rectangular channel with periodic ribs on one of the walls

Numerical Study of Heat Transfer in a Lattice Matrix with Varying the Crossing Angle

Numerical Study of Flow Downstream a Step with a Cylinder Part 2: Effect of a Cylinder on the Flow over the Step

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