Vortex Shedding: A Review on Flat Plate

Teimourian, Amir; Yazdi, Sina G.; Hacisevki, Hasan

doi:10.1134/s0015462818020167

Cited by 8 publications

(2 citation statements)

References 56 publications

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“…The development of computer technology and programming methods enabled to calculate flows past obstacles based on the system of fundamental equations, which are such derived relations of the "first principles of mechanics" for subsonic [2] and supersonic flows [3]. A review of works on analytical and numerical studies of the vortex flow over plate in a wide range of angles of attack is given in [4]. In addition to the traditional studies of the boundary layer and wake past a strip in a homogeneous fluid, the influence of stratification, always existing in the environment and industrial devices, where the fluid density is not constant due to the non-uniformity of the concentration of dissolved substances or suspended particles, temperature and pressure, has been studied during recent years.…”

Section: Introductionmentioning

confidence: 99%

Natural Unsteadiness of the Flow Pattern Around a Plate in Numerical Simulation and Laboratory Modeling

Chashechkin¹,

Zagumennyi²

2020

Topical Problems of Fluid Mechanics 2020

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The paper presents numerical and experimental study of 2D stratified flow around a strip based on the system of incompressible viscous fluid mechanics equations taking into account stratification and diffusion effects and neglecting heat transfer. The computations show the flow structure is essentially unsteady and multiscale with space-time scales, manifestation degree and attenuation rate of the flow structural elements being significantly affected by variations in values of the basic parameters of the moving body, i.e. size, shape, angle of attack, and movement velocity. For all the problem parameters considered, the laboratory and calculated instantaneous flow patterns indicate a complex unsteady nature of mutual interaction of all the flow components, including waves, vortices, and ligaments, and show a good qualitative agreement of the results of numerical and laboratory modeling.

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Section: Introductionmentioning

confidence: 99%

Natural Unsteadiness of the Flow Pattern Around a Plate in Numerical Simulation and Laboratory Modeling

Chashechkin¹,

Zagumennyi²

2020

Topical Problems of Fluid Mechanics 2020

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“…The development of computer technology and programming methods made it possible to calculate flows past obstacles based on the system of fundamental equations, which are such derived relations of the "first principles of mechanics" for subsonic [11] and supersonic flows (the fine structure was not visualized [12]). A review of works on analytical and numerical studies of the vortex flow over plate in a wide range of angles of attack is given in [13].…”

mentioning

confidence: 99%

The 2D Flow Around Tilted Plate

Chashechkin

Zagumennyi

2019

HoBMSTU.SNS

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The 2D problem on stratified flow around a strip is studied numerically and experimentally on the basis of the system of fundamental equations of incompressible viscous fluid mechanics taking into account diffusion effects and neglecting heat transfer. Strongly and weakly stratified fluid flows are considered, as well as potentially and actually homogeneous ones when the buoyancy effects, respectively, are assumed extremely weak or even neglected completely. Initial condition is the diffusion-induced flow on a motionless obstacle, which occurs as a result of interrupting the molecular flux of a stratifying agent on the plate surface. Influence of a set of problem parameters on the flow structure and dynamics is studied, including longitudinal and transverse dimensions of the plate, its shape, angle of attack, and velocity of movement. Analysis of the results shows that the unsteady problem does not have a stationary limit over the entire range of flow parameters due to its internal multiscale structure. The calculated field patterns, being specific for the basic physical variables and their gradients, are in a qualitative agreement with the laboratory data. In the extreme cases, the results converge to the well-known solutions, in particular, to the Blasius solution for the half-plane set in the direction of free stream.

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