Development and application of a particle image velocimeter for high-speed flows

1992 ◽  
Author(s):  
M. MOLEZZI ◽  
J. DUTTON
Keyword(s):  
High Speed ◽  
Particle Image ◽  
Particle Image Velocimeter ◽  
High Speed Flows

scholarly journals Study of Deformation and Breakup of Submillimeter Droplets’ Spray in a Supersonic Nozzle Flow

2020 ◽  
Vol 10 (18) ◽  
pp. 6149
Author(s):  
Oleg A. Gobyzov ◽  
Mikhail N. Ryabov ◽  
Artur V. Bilsky
Keyword(s):  
High Speed ◽  
Particle Image ◽  
Supersonic Nozzle ◽  
Stress Effect ◽  
Size Distributions ◽  
Flow Measurements ◽  
Image Velocimetry ◽  
Accelerated Flow ◽  
High Speed Flows ◽  
Breakup Mode

The problem of secondary atomization of droplets is crucial for many applications. In high-speed flows, fine atomization usually takes place, and the breakup of small droplets determines the final products of atomization. An experimental study of deformation and breakup of 15–60 µm size droplets in an accelerated flow inside a converging–diverging nozzle is considered in the paper. Particle image velocimetry and shadow photography were employed in the experiments. Results of gas and liquid phase flow measurements and visualization are presented and analyzed, including gas and droplets’ velocity, shape and size distributions of droplets. Weber numbers for droplets’ breakup are reported. For those small droplets at low Weber numbers, the presence of well-known droplets’ breakup morphology is confirmed, and rare “pulling” breakup mode is detected and qualitatively described. For the “pulling” breakup mode, a consideration, explaining its development in smaller droplets through shear stress effect, is provided.

Numerical simulations of high-speed flows in an axisymmetric ramjet

1988 ◽  
Author(s):  
K. KAILASANATH ◽  
J. GARDNER ◽  
E. ORAN ◽  
J. BORIS
Keyword(s):  
Numerical Simulations ◽  
High Speed ◽  
High Speed Flows

Effects of energy release on high-speed flows in an axisymmetric combustor

1989 ◽  
Author(s):  
K. KAILASANATH ◽  
J. GARDNER ◽  
E. ORAN ◽  
J. BORIS
Keyword(s):  
Energy Release ◽  
High Speed ◽  
High Speed Flows

Planar Doppler Velocimetry in high speed flows

1996 ◽  
Author(s):  
P. Clancy ◽  
J.-H. Kim ◽  
M. Samimy
Keyword(s):  
High Speed ◽  
Doppler Velocimetry ◽  
High Speed Flows
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