Capillary-Orifice Model for High-Speed Flow through Porous Media

1966 ◽  
Vol 5 (1) ◽  
pp. 90-94 ◽  
Author(s):  
E. F. Blick
Keyword(s):  
Porous Media ◽  
High Speed ◽  
Flow Through Porous Media ◽  
High Speed Flow ◽  
Speed Flow ◽  
Flow Through

High Speed Flow through Perforated Plates

1960 ◽  
Vol 64 (590) ◽  
pp. 103-105
Author(s):  
P. G. Morgan
Keyword(s):  
Pressure Drop ◽  
High Speed ◽  
Perforated Plate ◽  
Wire Mesh ◽  
Flow Conditions ◽  
High Speed Flow ◽  
Perforated Plates ◽  
Speed Flow ◽  
Flow Through ◽  
Points Of View

The flow through porous screens has been widely studied from both the theoretical and experimental points of view. The most widely used types of screen are the wire mesh and the perforated plate, and the majority of the literature has been concerned with the former. Several attempts have been made to correlate the parameters governing the flow through such screens, i.e. the pressure drop, the flow conditions and the geometry of the mesh.

High Speed Flow Through Wire Gauzes

1959 ◽  
Vol 63 (584) ◽  
pp. 474-475 ◽  
Author(s):  
P. G. Morgan
Keyword(s):  
Pressure Drop ◽  
Pressure Loss ◽  
High Speed ◽  
Static Pressure ◽  
Flow Conditions ◽  
High Speed Flow ◽  
Speed Flow ◽  
Wire Gauze ◽  
Flow Through

The Flow of Fluids through screens has been widely studied with particular importance being attached to the measurement of the pressure drop caused by a screen and its relation to the screen geometry and the flow conditions. The majority of the investigations have been carried out on wire gauze screens mounted in ducts with air passing through them, the static pressure being measured on either side of the gauze. Attempts have been made by Weighardt Annand and Grootenhuisto correlate the gauze geometry with the pressure drop and to enable the pressure loss over a given screen and with given flow conditions to be predicted.

High-Speed Aerosol Flow Through Micro-Nozzles for Direct-Write Processes

2013 ◽  
Author(s):  
Justin M. Hoey ◽  
Sourin Bhattacharya ◽  
Artur Lutfurakhmanov ◽  
Michael Robinson ◽  
Orven F. Swenson ◽  
...  
Keyword(s):  
High Speed ◽  
Aerosol Particles ◽  
Particle Interaction ◽  
Direct Write ◽  
Particle Rotation ◽  
High Speed Flow ◽  
Magnus Force ◽  
Aerosol Flow ◽  
Speed Flow ◽  
Flow Through

Aerosol direct-write printing for mesoscale features has been commercially available since around 2002 from Optomec®. We have developed variances to this process first in Collimated Aerosol Beam-Direct Write (CAB-DW) for printing sub-10 μm features and in Micro Cold Spray for printing with solid metallic aerosols. These deposition tools offer extensive uses, but are still limited in certain applications by either line widths or the amount of overspray. Modeling of aerosol flow through micro-nozzles used in these applications yields a greater understanding of the focusing of these aerosol particles, and may provide a vehicle for new nozzle designs which will further enhance these tools. Recent modeling applied both Stokes and Saffman force to the aerosol particles. Under certain conditions particle rotation and Magnus force may also be necessary to accurately predict the aerosol particles. In this paper we will present our recent results of high-speed flow of 1–10 μm diameter aerosol particles through micro-nozzles in which the model includes all three forces (Stokes, Saffman, Magnus) of fluid-particle interaction, and a comparison of these results to experiments.

Quantitative Visualization of High Speed Flow through Optical Tomography

2012 ◽  
pp. 653-658 ◽  
Author(s):  
Biswajit Medhi ◽  
G. M. Hegde ◽  
K. P. J. Reddy ◽  
D. Roy ◽  
R. M. Vasu
Keyword(s):  
High Speed ◽  
Optical Tomography ◽  
High Speed Flow ◽  
Speed Flow ◽  
Quantitative Visualization ◽  
Flow Through
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