Magnetohydrodynamic Channel Flow with an Arbitrary Inlet Velocity Profile

1972 ◽  
Vol 15 (8) ◽  
pp. 1531 ◽  
Author(s):  
T. S. Chen
Keyword(s):  
Velocity Profile ◽  
Channel Flow ◽  
Inlet Velocity ◽  
Magnetohydrodynamic Channel

Symmetrical Laminar Channel Flow With Wall Suction

1976 ◽  
Vol 98 (3) ◽  
pp. 469-474 ◽  
Author(s):  
B. K. Gupta ◽  
E. K. Levy
Keyword(s):  
Velocity Profile ◽  
Channel Flow ◽  
Similarity Solutions ◽  
Inlet Velocity ◽  
Boundary Layer Equations ◽  
Wide Range ◽  
Laminar Channel Flow ◽  
Dimensional Boundary ◽  
Steady Laminar ◽  
Good Agreement

Entrance region solutions of the two-dimensional boundary layer equations are presented in terms of a convergent power series for steady, laminar, incompressible channel flow with uniform mass suction at the walls. The entrance solutions obtained using both uniform and parabolic velocity profiles at the inlet to the channel are compared to the solutions obtained from the similarity equations for a wide range of non-dimensional suction velocities (0 ≤ Rew ≤ 30). With a parabolic inlet velocity profile, the flow does not become fully developed for Rew > 7, except right at the downstream end of the channel (x = L). The similarity solutions are in good agreement with the entrance solutions over a reasonable length of the channel only for very small values of Rew. With a uniform inlet velocity profile, the flow does not become fully developed in the range 7 < Rew < 13, except right at x = L. In this case, the similarity equations should not be used to predict overall axial pressure variations except for very large values of Rew.

Mean Flow Measurements Near the Plane of an Open Rotor Operating with an Inlet Velocity Gradient

1981 ◽  
Vol 103 (2) ◽  
pp. 445-450
Author(s):  
M. L. Billet
Keyword(s):  
Flow Field ◽  
Velocity Profile ◽  
Velocity Gradient ◽  
Vortex Motion ◽  
Field Measurements ◽  
Velocity Data ◽  
Mean Flow ◽  
Flow Measurements ◽  
Inlet Velocity ◽  
Open Rotor

As part of a study on the structure of a trailing vortex, laser doppler anemometer (LDA) measurements were made of the flow field near an open rotor having an inlet velocity gradient. The measurements were made in the 1.22 m dia water tunnel of the Applied Research Laboratory at The Pennsylvania State University. Velocity data were obtained for rotor inlet and outlet flow fields for several different inlet velocity gradients. Velocity data were also obtained downstream of the rotor plane that shows the vortex structure. Flow field measurements show the development of the downstream vortex motion. Small variations in the inlet velocity gradient near the rotor wall caused large differences in the structure of the trailing vortex. In addition, a measured downstream velocity profile is compared with a calculated velocity profile.

Flow Development in a Circular Duct With a Highly Distorted Inlet Condition

2007 ◽  
Author(s):  
Srinivas Badam ◽  
Jie Cui ◽  
Stephen Idem
Keyword(s):  
Numerical Model ◽  
Velocity Profile ◽  
Reynolds Numbers ◽  
Velocity Profiles ◽  
Pressure Gradients ◽  
Development Length ◽  
Circular Duct ◽  
Inlet Velocity ◽  
Inlet Condition ◽  
Flow Development

The development of air flow downstream of a stationary fan located in a circular duct was investigated. The objective of the research was to study the evolution of the velocity profiles and pressure gradients at various axial locations. The velocity profiles were measured at three different Reynolds numbers using a five-hole directional probe. Because the stationary fan caused the inlet velocity profile to be highly distorted, it was determined experimentally that the development length exceeded 20 duct diameters. Since this was greater than the length of the apparatus, a corresponding numerical model of the flow was generated using the commercial CFD software Fluent-6.1/6.2. The numerical model was validated against the experimental results. The hydrodynamic development length was therein determined numerically.

Transient Behavior of the Velocity Profile in Channel Flow of a Langmuir Monolayer

Langmuir ◽  
2000 ◽  
Vol 16 (24) ◽  
pp. 9433-9438 ◽  
Author(s):  
Ani T. Ivanova ◽  
Daniel K. Schwartz
Keyword(s):  
Velocity Profile ◽  
Channel Flow ◽  
Transient Behavior ◽  
Langmuir Monolayer

511 Three Dimensional Separation with Focus in a Decelerating Duct Flow : Relation with the Gradient of Inlet Velocity Profile

2001 ◽  
Vol 2001.54 (0) ◽  
pp. 139-140
Author(s):  
Yoichi KINOUE ◽  
Toshiaki SETOGUCHI ◽  
Kenji KANEKO ◽  
Takeshi MURASAKI ◽  
Masahiro INOUE
Keyword(s):  
Velocity Profile ◽  
Three Dimensional ◽  
Duct Flow ◽  
Inlet Velocity

Inlet velocity profile effects on turbulent swirling flow predictions

1994 ◽  
Vol 10 (2) ◽  
pp. 155-160 ◽  
Author(s):  
Mingchun Dong ◽  
David G. Lilley
Keyword(s):  
Velocity Profile ◽  
Swirling Flow ◽  
Inlet Velocity
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