The distribution of wall pressures in yawed flow through an array of cylindrical tubes inclined at different angles between 30° and 90° was experimentally studied using air at atmospheric pressure for 2290 ≤ Re ≤ 6100. The experiments show that the pressure coefficient is strongly influenced by the inclination angle, and only marginally affected by the flow rate within the tested range. The pressure behavior at the gap was calculated by assuming curved streamlines and inviscid flow, showing good agreement with measurements performed at the rod wall in the gap position.

References

References
1.
Prandtl
,
L.
, 1952,
Essentials of Fluid Dynamics
,
Blackie & Son Ltd
,
London
.
2.
Wu
,
T.
, and
Chen
,
C.
, 2000, “
Laminar Boundary-Layer Separation Over a Circular Cylinder in Uniform Shear Flow
,”
Acta Mech.
,
144
, pp.
71
82
.
3.
Kishor
,
K.
,
Meher
,
A.
, and
Rama
,
R.
, 2006, “
Optimization of the Number of Spacers in a Nuclear Fuel Bundle With Respect to Flow-Induced Vibration
,”
Nucl. Eng. Des.
,
236
, pp.
2348
2355
.
4.
Fahmi
,
M.
,
Hussein
,
M.
,
Mohamed
,
S.
, and
El-Shobokshy
,
S.
, 1989, “
Experimental Investigation of the Effects of Extended Surfaces on the Performance of Tube Banks in Cross Flow
,”
J. King Saud Univ., Eng. Science Conf.
, Riyadh (1), pp.
213
228
.
5.
Zdravkovich
,
M.
, 2003,
Flow Around Circular Cylinders: 1 Fundamentals, 2 Applications
,
Oxford University Press
,
London
.
6.
Fornberg
,
B.
, 1991, “
Steady Incompressible Flow Past a Row of Circular Cylinders
,”
J. Fluid Mech.
,
225
, pp.
655
671
.
7.
Williamson
,
C.
, 1998, “
The Existence of 2 Stages in the Transition to Three-Dimensionality of a Cylinder Wake
,”
Phys. Fluids
,
31
, pp.
3165
3168
.
8.
Williamson
,
C.
, 1992, “
The Natural and Forced Formation of Spot-like Vortex Dislocations in the Transition of a Wake
,”
J. Fluid Mech.
,
243
, pp.
393
441
.
9.
Schewe
,
G.
, 1983, “
On the Force Fluctuations Acting on a Circular Cylinder in Cross-Flow From Subcritical up to Transcritical Reynolds Numbers
,”
J. Fluid Mech.
,
133
, pp.
265
285
.
10.
Zhao
,
M.
,
Cheng
,
L.
, and
Zhou
T.
, 2009, “
Direct Numerical Simulation of Three-Dimensional Flow Past a Yawed Circular Cylinder of Infinite Length
,”
J. Fluids Struct.
,
25
, pp.
831
847
.
11.
King
,
R.
, 1977, “
Vortex Excited Oscillations of Yawed Circular Cylinders
,”
ASME J. Fluids Eng.
,
99
, pp.
495
502
.
12.
Thakur
,
A.
,
Liu
,
X.
, and
Marshall
,
J.
, 2004, “
Wake Flow of Single and Multiple Yawed Cylinders
,”
ASME J. Fluids Eng.
,
126
, pp.
861
870
.
13.
Chiba
,
K.
, and
Horikawa
,
A.
, 1987, “
Numerical Solution for the Flow of Viscoelastic Fluids Around an Inclined Circular Cylinder. The Hydrodynamic Force on a Circular Cylinder
,”
Rheol. Acta
,
26
, pp.
255
265
.
14.
Marshall
,
J.
, 2003, “
Wake Dynamics of a Yawed Cylinder
,”
ASME J. Fluids Eng.
,
125
, pp.
97
103
.
15.
Lucor
,
D.
, and
Karniadakis
G.
, 2003, “
Effects of Oblique Inflow in Vortex-Induced Vibrations
,”
Flow, Turb. Combust.
,
71
, pp.
375
389
.
16.
Kim
,
T.
,
Hodson
,
H.
, and
Lu
T.
, 2006, “
On the Prediction of Pressure Drop Across Banks of Inclined Cylinders
,”
Int. J. Heat Fluid Flow
,
27
, pp.
311
318
.
17.
Fowler
,
A.
, and
Bejan
,
A.
, 1994, “
Forced Convection in Banks of Inclined Cylinders at Low Reynolds Numbers
,”
Int. J. Heat Fluid Flow
,
15
, pp.
90
99
.
18.
Peybernès
,
J.
, 2005, “
Evaluation of the Forces Generated by Cross-Flow on PWR Fuel Assembly
,”
IAEA-TECDO
,
1454
, p.
13
.
19.
White
,
F. M.
, 1996,
Fluid Mechanics
,
3rd ed.
,
MGraw-Hill
,
Mexico
.
20.
Shapiro
,
A.
, 1956,
The Dynamics and Thermodynamics of Compressible Flow
,
The Ronald Press
,
New York
, Vol.
1
, p.
281
.
21.
Mehta
,
R.
, and
Bell
,
J.
, 1989, “
Boundary-Layer Predictions for Small Low-Speed Contractions
,”
Am. Inst. Aeronaut. Astronaut. J.
,
27
, pp.
372
374
.
You do not currently have access to this content.