Square Cylinder
Grid Convergence Property of Three Dimensional Measurement Integrated Simulation for Unsteady Flow behind a Square Cylinder with Karman Vortex Street
... Grid convergence was also investigated for distributions of the mean streamwise ve- locity and its fluctuation in comparison with the laser Doppler velocimetry (LDV) measurement in former work [24]. LDV equipment (TSI, ...
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Identification of Dominant Acoustic Sources in Flows around Square Cylinder in a Uniform Flow
... two-dimensional square cylinder, as shown in figure 1, is ...the cylinder is set to 150, where three-dimensional instability does not occur ...the cylinder are focused ...
5
Comparative study on energy extraction from vibrating square cylinder
... Square cylinder has fixed separation point making it susceptible to both vortex induced vibration (VIV) and galloping. VIV is an aerodynamic instability which may occur at relatively low onset velocity, ...
7
Effect of Aspect Ratio on the Flow Structures Behind a Square Cylinder
... IDDES simulations were conducted in the current study for air flow past a wall- mounted finite-length square cylinder with aspect ratios (AR = h/d) varying from 1 to 4. For the approach flow, a low Reynolds ...
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Heat Transfer Enhancement of a Flat Plate Boundary Layer Distributed by a Square Cylinder: Particle Image Velocimetry and Temperature-Sensitive Paint Measurements and Proper Orthogonal Decomposition Analysis
... the cylinder size in heat transfer ...a square insert in the turbulent boundary layer and numerically evaluated the heat transfer ...the square cylinder on heat transfer ...
10
Flow induced vibration of a square cylinder with high Scruton number
... High Scruton number elastic system for flow over a square cylinder has been numerically investigated and compared with the experimental measurements. A good agreement between the numerical and experiments ...
8
RANS and hybrid LES/RANS simulations of flow over a square cylinder
... In this study, both Gieseking ’ s hybrid LES/RANS model and Spalart ’ s original IDDES model were used for the 3D simulation of flow over a square cylinder. In addition, the ori- ginal IDDES model was ...
24
BEM-Based Algorithm for URANS Simulations of Flow over a Square Cylinder
... The boundary element method (BEM) is extended for the discretisation of the incompressible Navier-Stokes equations in the velocity-vorticity form for the URANS formulation. BEM uses fundamental solutions as weighting ...
11
Flow induced vibration of a square cylinder with high scruton number
... Karman vortex is the prominent vortex found for any flow over bluff bodies, especially at low Reynolds number flow. The formation of this large scale vortex is originated from the free shear layer that is growing in its ...
8
Implementation of a deforming mesh for the flow past an oscillating square cylinder
... the cylinder outside of which the quadrilateral elements are body fitted, that is, the elements are aligned along the boundaries of the ...the cylinder walls along with the cylinder will be used to ...
7
Two Dimensional Simulation of the Navier Stokes Equations for Laminar and Turbulent Flow around a Heated Square Cylinder with Forced Convection
... 40 ≤ Re ≤ × 5 10 . For simulations of turbulence the Smagorinsky and Spalart-Allmaras models are used. The first model uses the Large Eddy Simulation (LES) methodology and is based on the local equilibrium hypothesis for ...
22
Stratified spin up in a sliced, square cylinder
... uniform-depth cylinder, however, in the sliced cylinder that state arises by a combination of Rossby-wave propagation and frictional ...sliced cylinder the frictional decay is somewhat more rapid, ...
35
The linear spin up of a stratified, rotating fluid in a square cylinder
... a square cylinder 31 a given asymptotic series might have quite different “orders,” but the term of smaller order could, for a given finite value of the small parameter, be numerically larger because the ...
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Numerical Simulation of Fluid Flow Past a Square Cylinder Using a Lattice Boltzmann Method
... the square counterpart has not been investigated extensively, al- though it plays a dominant role in many technical ap- plications such as building ...a square cylinder ...the cylinder and a ...
9
Effects of the Reynolds Number and Prandtl Number on Flow and Temperature Field inside a Square Vented Enclosure having Heat Conducting Block M. U. Ahammad 1, M. M. K. Chowdhury2 , M. M. Rahman 3
... a square vented cavity containing a heat conducting horizontal solid circular cylinder was studied by Rahman et ...heated square cylinder placed in an enclosure for the Reynolds number in the ...
6
Galloping and VIV control of square-section cylinder utilizing direct opposing smart control force
... sprung square-section cylinder at Reynolds numbers of Re ...sprung square cylinder first experiences vortex-induced vibrations with increasing Reynolds number, and then, after passing the ...
16
Pilot study about the micro hydropower generation by use of flow induced vibration phenomenon
... circular cylinder, the square cylinder, and the triangular ...circular cylinder 140 mm and varying the flow ...circular cylinder, and the down stream ...circular cylinder behind ...
6
On the formation of axial corner vortices during spin up in a cylinder of square cross section
... transparent square cylinder (of width L = 38 cm, height H = 51 cm) mounted on a variable-speed turntable with its vertical axis aligned with the rotation axis of the table (see figure ...The cylinder ...
26
Numerical study of stream-function formulation governing flows in multiply-connected domains by integrated RBFs and Cartesian grids
... Abstract This paper describes a new numerical procedure, based on point colloca- tion, integrated multiquadric functions and Cartesian grids, for the discretisation of the stream-function formulation for flows of a ...
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Numerical Simulations of Turbulence in Porous Media – A Study on the Vortex Structure and Vortex Interactions at the Pore Scale.
... To be able to quantify these inferences to make reliable predictions for the macroscopic models, the circularity (sphericity for 3D GPMs) of the geometry should be analysed with regard to its influence on the macroscopic ...
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