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Cryogenic fluid dynamics of pressure swirl injectors at supercritical conditions
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10.1063/1.2905287
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Affiliations:
1 Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
Phys. Fluids 20, 056103 (2008)
/content/aip/journal/pof2/20/5/10.1063/1.2905287
http://aip.metastore.ingenta.com/content/aip/journal/pof2/20/5/10.1063/1.2905287

## Figures

FIG. 1.

Schematic of swirl coaxial injector.

FIG. 2.

Schematic of pressure swirl injector.

FIG. 3.

Effect of grid resolution on radial distributions of mean temperature, density, and axial and radial velocity components at different axial locations (case 1: , , , , ).

FIG. 4.

Temporal evolution of temperature field (case 1: , , , , , ).

FIG. 5.

Close-up view of temporal evolution of temperature field near liquid-oxygen film (case 1: , , , , , ).

FIG. 6.

Power spectral densities of pressure fluctuations at eight different locations inside injector (case 1: , , , , , ).

FIG. 7.

Power spectral densities of pressure and velocity fluctuations at probe 6 (case 1: , , , , , ).

FIG. 8.

Time histories of pressure oscillations at four different locations along the liquid-oxygen film (case 1: , , , , , ).

FIG. 9.

Power spectral densities of pressure fluctuations at four different locations in near field of injector (case 1: , , , , , ).

FIG. 10.

Energy distribution of POD modes of pressure oscillations within injector (case 1: , , , , , ).

FIG. 11.

Frequency spectra of time-varying coefficients of first six POD modes of pressure oscillations (case 1: , , , , , ).

FIG. 12.

Spatial distributions of first six POD modes of oscillatory pressure field within injector (case 1: , , , , , ).

FIG. 13.

Time-mean fields of density, temperature, compressibility factor, and velocity components (, , , , ).

FIG. 14.

Radial distributions of mean velocity components, temperature, density, and compressibility-factor at various axial locations (case 1: , , , , , ).

FIG. 15.

Liquid-oxygen film thickness along injector wall (case 1: , , , , ).

FIG. 16.

Axial distributions of time-mean axial and angular momenta (case 1: , , , , ).

FIG. 17.

Radial distributions of mean density and velocity components in the stationary region, (case 1: , , , , , ).

FIG. 18.

Effect of tangential inlet location on mean axial- and angular-momentum distributions (, , , , ).

FIG. 19.

Effect of tangential entry position on flow evolution near the headend (, , , , ).

FIG. 20.

Mean axial- and angular-momentum losses as functions of injector length (, , , , ).

FIG. 21.

LOX film thickness as function of injector length.

## Tables

Table I.

Baseline geometry and mass flowrate.

Table II.

Effects of injector geometry and flow conditions on LOX film thickness and spreading angle at injector exit (, and ).

/content/aip/journal/pof2/20/5/10.1063/1.2905287
2008-05-27
2014-04-18

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