Flow Through Screens

Control of the velocity distribution of a fluid flow is a fundamental problem In engineering fluid mechanics. The possible consequences for the operation and efficiency of downstream components need no emphasis here. Ability to control the flow is also necessary in component testing where, for results to be meaningful, test conditions must reproduce the composite flow situation. A screen may be used in both these operational modes to remove or create time-mean velocity nonuniformities, change the flow direction, and reduce or increase the scale and intensity of turbulence in a controlled manner. A screen may be thought of as any distributed resistance that effects a change in flow direction and a reduction in pressure. Common examples of screens for aerodynamic applications are arrays of parallel rods, honeycombs, perforated plates, and wire-gauze screens. This review focusses on the wire-gauze screen, with brief consideration of other types of screen. A survey of the available literature on the topic of flow through screens divides roughly into three categories:

[1]  R. C. Pankhurst,et al.  The design of low-speed wind tunnels , 1964 .

[2]  J. C. R. Hunt,et al.  A theory of turbulent flow round two-dimensional bluff bodies , 1973, Journal of Fluid Mechanics.

[3]  J. L. Lumley,et al.  Passage of a Turbulent Stream Through Honeycomb of Large Length-to-Diameter Ratio , 1964 .

[4]  J. T. Turner,et al.  The effect of velocity profile decay on shear flow in diffusers , 1964 .

[5]  W. G. Rose.  Results of an attempt to generate a homogeneous turbulent shear flow , 1966, Journal of Fluid Mechanics.

[6]  A. J. Reynolds.  Flow Deflection by Gauze Screens , 1969 .

[7]  N. A. Jackson.  Theoretical velocity distributions downstream of non-uniform single and multiple smoothing screens , 1972, The Aeronautical Journal (1968).

[8]  W. Reynolds.  Computation of Turbulent Flows , 1975 .

[9]  J. H. McCarthy,et al.  Steady flow past non-uniform wire grids , 1964, Journal of Fluid Mechanics.

[10]  P. G. Morgan,et al.  High Speed Flow Through Wire Gauzes , 1959, The Journal of the Royal Aeronautical Society.

[11]  D. R. Kotansky,et al.  The use of honeycomb for shear flow generation. , 1966 .

[12]  J. L. Livesey,et al.  An Initial Approach to the Design of Very Wide Angle Axisymmetric Diffusers With Gauzes to Achieve Uniform Outlet Velocity Profiles , 1977 .

[13]  G. de Vahl Davis.  THE FLOW OF AIR THROUGH WIRE SCREENS , 1964 .

[14]  P. G. Morgan.  The Stability of Flow Through Porous Screens , 1960, The Journal of the Royal Aeronautical Society.

[15]  Alan G. Davenport.  THE APPLICATION OF STATISTICAL CONCEPTS TO THE WIND LOADING OF STRUCTURES. , 1961 .

[16]  G. B. Schubauer,et al.  Aerodynamic Characteristics of Damping Screens , 1950 .

[17]  D. F. James,et al.  Fluid flow around and through a screen , 1973, Journal of Fluid Mechanics.

[18]  Y. L. Lau,et al.  Flow of stratified fluid through curved screens , 1968, Journal of Fluid Mechanics.

[19]  W. E. Zorumski,et al.  Flow resistance of perforated plates in tangential flow , 1971 .

[20]  J. Lumley,et al.  A First Course in Turbulence , 1972 .

[21]  J. T. Turner,et al.  The generation of symmetrical duct velocity profiles of high uniform shear , 1964 .

[22]  J. C. Gibbings.  The pyramid gauze diffuser , 1973 .

[23]  P. R. Owen,et al.  The production of uniform shear flow in a wind tunnel , 1957, Journal of Fluid Mechanics.

[24]  W. D. Baines,et al.  An Investigation of Flow Through Screens , 1951, Journal of Fluids Engineering.

[25]  P. Bradshaw.  Wind-Tunnel Screens: Flow Instability and its Effect on Aerofoil Boundary Layers , 1964, The Journal of the Royal Aeronautical Society.

[26]  J. L. Livesey,et al.  Simulation of velocity profiles by shaped gauze screens. , 1973 .

[27]  Alfred A Adler.  Variation with Mach Number of Static and Total Pressures Through Various Screens , 1946 .

[28]  J. W. Elder,et al.  Steady flow through non-uniform gauzes of arbitrary shape , 1959, Journal of Fluid Mechanics.

[29]  J. L. Livesey,et al.  An approximate method for the design of shaped gauze screen velocity profile generators , 1974 .