Characteristics for flow and heat transfer around a circular cylinder near a moving wall in wide range of low Reynolds number

Yoon, Hyun Sik; Lee, J.B.; Seo, Jang Hoon; Park, Hyun

doi:10.1016/j.ijheatmasstransfer.2010.07.054

Cited by 36 publications

(12 citation statements)

References 24 publications

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“…Their numerical simulations were performed with the lower wall stationary. Similar investigations undertaken by Yoon et al (2010Yoon et al ( , 2007, using an immersed-boundary method, quantified the forces on the cylinder for Re o 200. As the gap height was increased from low values, the drag and lift coefficients showed an exponential decrease.…”

Section: Introductionmentioning

confidence: 88%

Flow past a rotating cylinder translating at different gap heights along a wall

Rao

Thompson

Leweke

et al. 2015

Journal of Fluids and Structures

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Section: Introductionmentioning

confidence: 88%

Flow past a rotating cylinder translating at different gap heights along a wall

Rao

Thompson

Leweke

et al. 2015

Journal of Fluids and Structures

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“…It is an efficient and applicable approach to predict heat and mass transfer coefficients from hydrodynamic results, especially for complex engineering problems. The change of the thermal field for different Reynolds numbers can be predicted from that of flow [69], particularly for the heat transfer behavior of the wake behind a heated body. This means the role played by the heat flux has a similar nature to that of the drag.…”

Section: Relationship Between the Drag And Heat Transfermentioning

confidence: 99%

Similarities of Flow and Heat Transfer around a Circular Cylinder

Duan

2020

Symmetry

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Modeling fluid flows is a general procedure to handle engineering problems. Here we present a systematic study of the flow and heat transfer around a circular cylinder by introducing a new representative appropriate drag coefficient concept. We demonstrate that the new modified drag coefficient may be a preferable dimensionless parameter to describe more appropriately the fluid flow physical behavior. A break in symmetry in the global structure of the entire flow field increases the difficulty of predicting heat and mass transfer behavior. A general simple drag model with high accuracy is further developed over the entire range of Reynolds numbers met in practice. In addition, we observe that there may exist an inherent relation between the drag and heat and mass transfer. A simple analogy model is established to predict heat transfer behavior from the cylinder drag data. This finding provides great insight into the underlying physical mechanism.

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“…Many authors preferred CFD solution of the problem by own code using standard method, e.g. SIMPLE algorithm [6] or Galerkin weighted residual finite element method [7], DNS approach [8][9] or they were using the commercial software ANSYS [10][11][12]. The research devoted to stream turbulence intensity and local perturbation generated behind the cylinder or generation of unsteady wake are also frequented, both experiment [4,[13][14] and numerical simulation [6][7] were performed by authors.…”

Section: Introductionmentioning

confidence: 99%

Forced convection and heat transfer around a bounded cylinder

2018

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The article deals with the heat transfer solution in the fluid flow inside a pipe, the small tube is inserted into the pipe and its axis is perpendicular to the axis of the pipe. The fluid is water, the regime of the fluid flow is turbulent. The small tube is loaded by the internal source of the heat, the power of the source is constant and homogenous over the small tube surface and the cold water cools down the small tube. The analysis of the described problem helps to design the experimental model (the heat source above all) to validate the CFD results. The work included the numeric and analytic method. The model was prepared with the aim to investigate large amount of the variants of the geometric set up (the tube and pipe diameters ratio, the geometrical aspect ratio, corresponding stabilization length of the pipe for given diameter), the flow properties (variation of the velocity values, Reynolds number) and the power of the heat source (ensuring the measurable differences of the temperatures on the tube surface, large Nusselt number). The effect of the constrained space has been observed and described, compare to the free fluid flow.

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Characteristics for flow and heat transfer around a circular cylinder near a moving wall in wide range of low Reynolds number

Cited by 36 publications

References 24 publications

Flow past a rotating cylinder translating at different gap heights along a wall

Flow past a rotating cylinder translating at different gap heights along a wall

Similarities of Flow and Heat Transfer around a Circular Cylinder

Forced convection and heat transfer around a bounded cylinder

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