Computation of unsteady flow past a cylinder instantaneously set in motion

1977 ◽  
Vol 17 (5) ◽  
pp. 671-677
Author(s):  
V. I. Kravchenko ◽  
Yu. D. Shevelev ◽  
V. V. Shchennikov
Keyword(s):  
Unsteady Flow ◽  
Flow Past ◽  
Flow Past A Cylinder

Flow Unsteadiness and Stability Characteristics of Low-Re Flow Past an Inclined Triangular Cylinder

2017 ◽  
Vol 139 (12) ◽  
Author(s):  
Wei Zhang ◽  
Hui Yang ◽  
Hua-Shu Dou ◽  
Zuchao Zhu
Keyword(s):  
Growth Rate ◽  
Sensitivity Analysis ◽  
Unsteady Flow ◽  
Maximum Velocity ◽  
Flow Patterns ◽  
Wake Flow ◽  
Near Wake ◽  
Flow Unsteadiness ◽  
Flow Past ◽  
Far Wake

The present study investigates the two-dimensional flow past an inclined triangular cylinder at Re = 100. Numerical simulation is performed to explore the effect of cylinder inclination on the aerodynamic quantities, unsteady flow patterns, time-averaged flow characteristics, and flow unsteadiness. We also provide the first global linear stability analysis and sensitivity analysis on the targeted physical problem for the potential application of flow control. The objective of this work is to quantitatively identify the effect of cylinder inclination on the characteristic quantities and unsteady flow patterns, with emphasis on the flow unsteadiness and instability. Numerical results reveal that the flow unsteadiness is generally more pronounced for the base-facing-like cylinders (α → 60 deg) where separation occurs at the front corners. The inclined cylinder reduces the velocity deficiency in the near-wake, and the reduction in far-wake is the most notable for the α = 30 deg cylinder. The transverse distributions of several quantities are shifted toward the negative y-direction, such as the maximum velocity deficiency and maximum/minimum velocity fluctuation. Finally, the global stability and sensitivity analysis show that the spatial structures of perturbed velocities are quite similar for α ≤ 30 deg and the temporal growth rate of perturbation is sensitive to the near-wake flow, while for α ≥ 40 deg there are remarkable transverse expansion and streamwise elongation of the perturbed velocities, and the growth rate is sensitive to the far-wake flow.

Unsteady flow past a flat plate with suction

1975 ◽  
Vol 81 (5) ◽  
pp. 215-219 ◽  
Author(s):  
G. N. Purohit ◽  
M. C. Goyal
Keyword(s):  
Unsteady Flow ◽  
Flat Plate ◽  
Flow Past

Experimental and numerical investigation of high enthalpy flow past a cylinder in HEG

Shock Waves ◽  
2005 ◽  
pp. 179-184 ◽  
Author(s):  
S. Karl ◽  
J. Martinez Schramm ◽  
K. Hannemann
Keyword(s):  
Numerical Investigation ◽  
High Enthalpy ◽  
Flow Past ◽  
Flow Past A Cylinder

scholarly journals Boundary shear flow past a cylinder near a wall

2019 ◽  
Vol 92 ◽  
pp. 101923 ◽  
Author(s):  
L.F. Chen ◽  
G.X. Wu
Keyword(s):  
Shear Flow ◽  
Boundary Shear ◽  
Flow Past ◽  
Flow Past A Cylinder

Pulsatile Flow Past a Cylinder: An Experimental Model of Flow in an Artificial Lung

ASAIO Journal ◽  
2006 ◽  
Vol 52 (6) ◽  
pp. 614-623 ◽  
Author(s):  
Yu-chun Lin ◽  
David O. Brant ◽  
Robert H. Bartlett ◽  
Ronald B. Hirschl ◽  
Joseph L. Bull
Keyword(s):  
Experimental Model ◽  
Pulsatile Flow ◽  
Artificial Lung ◽  
Flow Past ◽  
Flow Past A Cylinder

Unsteady flow past a circular cylinder with magnetic fluid coating

1995 ◽  
Vol 149 (1-2) ◽  
pp. 108-110 ◽  
Author(s):  
Mikhail S. Krakov ◽  
Shinichi Kamiyama
Keyword(s):  
Circular Cylinder ◽  
Unsteady Flow ◽  
Magnetic Fluid ◽  
Flow Past

Application of the Skeleton Model of a Highly Porous Cellular Material in Modeling Supersonic Flow past a Cylinder with a Forward Gas-Permeable Insert

2018 ◽  
Vol 53 (3) ◽  
pp. 409-416 ◽  
Author(s):  
S. V. Kirilovskiy ◽  
A. A. Maslov ◽  
S. G. Mironov ◽  
T. V. Poplavskaya
Keyword(s):  
Supersonic Flow ◽  
Cellular Material ◽  
Skeleton Model ◽  
Flow Past ◽  
Flow Past A Cylinder ◽  
Highly Porous

Viscous flow past a cylinder close to a free surface: Benchmarks with steady, periodic and metastable responses, solved by meshfree and mesh-based schemes

2019 ◽  
Vol 181 ◽  
pp. 345-363 ◽  
Author(s):  
A. Colagrossi ◽  
G. Nikolov ◽  
D. Durante ◽  
S. Marrone ◽  
A. Souto-Iglesias
Keyword(s):  
Free Surface ◽  
Viscous Flow ◽  
Flow Past ◽  
Flow Past A Cylinder
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