scholarly journals A methodology for momentum flux measurements in two-phase blast flows

2007 ◽  
Author(s):  
R. G. Ames ◽  
M. J. Murphy
Keyword(s):  
Momentum Flux ◽  
Two Phase ◽  
Flux Measurements

The effect of cavitation on the estimation of fuel injection rates based on momentum flux measurements

Fuel ◽  
2019 ◽  
Vol 238 ◽  
pp. 354-362 ◽  
Author(s):  
Chengjun Du ◽  
Sven Andersson ◽  
Mats Andersson
Keyword(s):  
Momentum Flux ◽  
Fuel Injection ◽  
Flux Measurements ◽  
Injection Rates

Tropospheric and stratospheric momentum flux measurements from radar wind data collected at Jicamarca

2004 ◽  
Vol 66 (3-4) ◽  
pp. 277-283 ◽  
Author(s):  
Dennis M. Riggin ◽  
Erhan Kudeki ◽  
Martin Sarango
Keyword(s):  
Momentum Flux ◽  
Wind Data ◽  
Flux Measurements

Momentum Flux in Two-Phase Flow

1969 ◽  
Vol 91 (3) ◽  
pp. 454-455 ◽  
Author(s):  
C. A. Prins
Keyword(s):  
Momentum Flux ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase

Two-Phase Flow Modeling in a Pipe Related to Flow-Induced Vibration

2005 ◽  
Author(s):  
W. G. Sim ◽  
N. W. Mureithi ◽  
M. J. Pettigrew
Keyword(s):  
Void Fraction ◽  
Power Law ◽  
Slug Flow ◽  
Momentum Flux ◽  
Two Phase Flow ◽  
Liquid Velocity ◽  
Fluid Dynamic ◽  
Phase Flow ◽  
Two Phase ◽  
Slip Ratio

To understand the fluid dynamic forces acting on a structure subjected to two-phase flow, it is essential to get detailed information about the characteristics of two-phase flow. The distributions of flow parameters across a pipe, such as gas velocity, liquid velocity and void fraction, may be assumed to follow a power law (Cheng 1998, Serizawa et al. 1975). The void fraction profile is, for example, uniform for bubbly flow while it is more or less parabolic for slug flow. In the present work, the average values of momentum flux, slip ratio, etc. are derived by integral analysis, based on approximate power law distributions. A parametric study with various distributions was performed. The existing empirical formulations for average void fraction, proposed by Wallis (1969), Zuber et al. (1967) and Ishii (1970), are considered to obtain the present results. In particular, the unsteady momentum flux for slug flow is approximated.

First results of tropospheric gravity wave momentum flux measurements over Christmas Island

Radio Science ◽  
1997 ◽  
Vol 32 (2) ◽  
pp. 727-748 ◽  
Author(s):  
J. L. Chang ◽  
S. K. Avery ◽  
A. C. Riddle ◽  
S. E. Palo ◽  
K. S. Gage
Keyword(s):  
Gravity Wave ◽  
Momentum Flux ◽  
Christmas Island ◽  
First Results ◽  
Flux Measurements ◽  
Wave Momentum

scholarly journals Motion-correlated flow distortion and wave-induced biases in air–sea flux measurements from ships

2015 ◽  
Vol 15 (11) ◽  
pp. 15543-15570 ◽  
Author(s):  
J. Prytherch ◽  
M. J. Yelland ◽  
I. M. Brooks ◽  
D. J. Tupman ◽  
R. W. Pascal ◽  
...  
Keyword(s):  
Momentum Flux ◽  
Time Varying ◽  
Wave Interactions ◽  
Flow Distortion ◽  
Platform Motion ◽  
Flux Measurements ◽  
Wind Measurements ◽  
Dependent Flow ◽  
Measured Momentum ◽  
Wave Induced

Abstract. Direct measurements of the turbulent air–sea fluxes of momentum, heat, moisture and gases. are often made using sensors mounted on ships. Ship-based turbulent wind measurements are corrected for platform motion using well established techniques, but biases at scales associated with wave and platform motion are often still apparent in the flux measurements. It has been uncertain whether this signal is due to time-varying distortion of the air flow over the platform, or to wind–wave interactions impacting the turbulence. Methods for removing such motion-scale biases from scalar measurements have previously been published but their application to momentum flux measurements remains controversial. Here we show that the measured motion-scale bias has a dependence on the horizontal ship velocity, and that a correction for it reduces the dependence of the measured momentum flux on the orientation of the ship to the wind. We conclude that the bias is due to experimental error, and that time-varying motion-dependent flow distortion is the likely source.

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