scholarly journals Optical assessment of large marine particles: development of an imaging and analysis sytem for quantifying large particle distributions and fluxes. Annual report, 1992-1993

1994 ◽  
Author(s):  
I.D. Walsh ◽  
W.D. Gardner
Keyword(s):  
Large Particle ◽  
Annual Report ◽  
Particle Distributions ◽  
Marine Particles

Modeling Deposit Erosion in Internal Turbine Cooling Geometries

2019 ◽  
Author(s):  
Nathan D. Libertowski ◽  
Gabriel M. Geiger ◽  
Jeffrey P. Bons
Keyword(s):  
Large Particle ◽  
Erosion Rate ◽  
Flow Simulation ◽  
Road Dust ◽  
Impingement Cooling ◽  
Particle Distributions ◽  
Turbine Cooling ◽  
Key Features ◽  
Deposit Structure ◽  
Adhesive Forces

Abstract Experiments were performed to study the erosion of deposit structures due to large particle impacts (> 5 μm). Cone shaped dust deposits were created in an oversized (6.35 mm diameter) impingement cooling jet at 811 K with 0–5 μm Arizona Road Dust (ARD). Subsequently, the deposit cones were eroded with larger particle distributions (5–10, 10–20, 20–40, and 40–80 μm ARD) at various velocities and temperatures. It was found that erosion rate increased with increasing particle size and flow velocity and with decreasing temperature. The dependency on size and velocity occurs through the particle’s kinetic energy at impact, while the dependency on temperature is related to the adhesive forces in the deposit structure. Using the experimental data, an empirical erosion model was developed to be added to the OSU deposition model. A computational flow simulation combined with mesh morphing is shown to capture key features of the erosion physics.

1999 Annual Report

2000 ◽  
Vol 10 (1) ◽  
pp. 6-6
Author(s):  
Eugene B. Cooper
Keyword(s):  
Annual Report

Annual Report of the Policy and Planning Board, 1996.

1997 ◽  
Vol 52 (8) ◽  
pp. 869-872
Author(s):  
No authorship indicated
Keyword(s):  
Annual Report ◽  
Planning Board ◽  
Policy And Planning
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