scholarly journals Lattice BGK Simulations of Unsteady Flow in a 2D Elastic Tube

2003 ◽  
pp. 997-1006 ◽  
Author(s):  
Alfons G. Hoekstra ◽  
Jos van ’t Hoff ◽  
Abdel Monim M. Artoli ◽  
Peter M. A. Sloot
Keyword(s):  
Unsteady Flow ◽  
Elastic Tube

Analysis of Fully Developed Unsteady Viscous Flow in a Curved Elastic Tube Model to Provide Fluid Mechanical Data for Some Circulatory Path-Physiological Situations and Assist Devices

1979 ◽  
Vol 101 (2) ◽  
pp. 114-123 ◽  
Author(s):  
K. B. Chandran ◽  
R. R. Hosey ◽  
D. N. Ghista ◽  
V. W. Vayo
Keyword(s):  
Shear Stress ◽  
Unsteady Flow ◽  
Steady Flow ◽  
Pulsatile Flow ◽  
Flow Patterns ◽  
Elastic Tube ◽  
Flow Component ◽  
Flow Response ◽  
Elastic Tubes ◽  
Flow Components

The unsteady and steady flow components of pulsatile flow response, to an experimentally monitored representative pressure pulse, are computed to provide fluid mechanical data for the etiology of arteriosclerosis at arterial curvature sites and for the design analysis of some extracorporeal dialysis and oxygenatory systems. The unsteady flow component of pulsatile flow in curved elastic tubes is simulated by the superposition of the first six Fourier components of a derived oscillatory flow solution of a viscous, incompressible fluid through an elastic tube of small curvature. The computer flow patterns, wall shear stress and hoop and axial stresses in the wall, due to unsteady and steady flow components of pulsatile flow response, are compared and their implications are discussed. The results show that the unsteady component yields shear stress of an order of magnitude greater than the steady flow, but the steady flow component has a greater variation in the shear stress distribution over a cross section. The steady and unsteady flow patterns are presented for several values of the tube diameters and curvature parameters typical of major arteries in the human circulatory system. The flow pattern and the stress variations could also prove useful in the design of extracorporeal systems such as dialysis machines and oxygenators.

scholarly journals Unsteady flow in a 2D elastic tube with the LBGK method

2004 ◽  
Vol 20 (6) ◽  
pp. 917-924 ◽  
Author(s):  
A.G. Hoekstra ◽  
Jos van’t Hoff ◽  
A.M. Artoli ◽  
P.M.A. Sloot
Keyword(s):  
Unsteady Flow ◽  
Elastic Tube

Unsteady flow with attenuation in a fluid filled elastic tube with a stenosis

1983 ◽  
Vol 49 (3-4) ◽  
pp. 201-208 ◽  
Author(s):  
A. Ramachandra Rao
Keyword(s):  
Unsteady Flow ◽  
Elastic Tube

Unsteady flow calculations with a parallel multiblock moving mesh algorithm

AIAA Journal ◽  
2001 ◽  
Vol 39 ◽  
pp. 1021-1029 ◽  
Author(s):  
H. M. Tsai ◽  
A. S. F. Wong ◽  
J. Cai ◽  
Y. Zhu ◽  
F. Liu
Keyword(s):  
Unsteady Flow ◽  
Moving Mesh

Dynamic effects on high frequency unsteady flow structures

1990 ◽  
Author(s):  
JOHN KLINGE ◽  
SCOTT SCHRECK ◽  
MARVIN LUTTGES
Keyword(s):  
Unsteady Flow ◽  
High Frequency ◽  
Flow Structures ◽  
Dynamic Effects

Pressure sensitive paint for unsteady flow fields

2001 ◽  
Author(s):  
Hirotaka Sakaue ◽  
James Gregory ◽  
John Sullivan ◽  
Surya Raghu
Keyword(s):  
Unsteady Flow ◽  
Flow Fields ◽  
Pressure Sensitive Paint ◽  
Pressure Sensitive
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