EXPERIMENTAL INVESTIGATION OF SECONDARY LIQUID INJECTION,

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Abstract:

The effects of liquid state on secondary injection in a supersonic stream were experimentally investigated. Normal penetration and lateral spreading of the liquid jets were inferred from scattered-light and schlieren photographs. A scaling law for lateral spreading of a cold-water jet, including Mach number dependence, was determined, and the data on normal penetration were used to extend existing correlations to lower injection pressure ratios. The effect of vapor pressure on breakup of liquid jets was investigated by injecting superheated water and acetone. A nondimensional penetration height was correlated with injector pressure ratio for superheated liquid injection, and the importance of thermodynamic properties on normal penetration was examined in view of these results. Author

Author(s):
Horn, Kenneth P. ; Reichenbach, Roy E.
Author Organization(s):
AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS
Pagination:
0038

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-0200(4220-10)-2, SAMSO-TR-69-77
Contract/Grant Number(s):
F04701-68-C-0200
Monitor Series:
TR-69-77
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*REENTRY VEHICLES, *ATMOSPHERE ENTRY, SECONDARY INJECTION, LIQUID COOLING, FLAT PLATE MODELS, PRESSURE, PENETRATION, HEAT TRANSFER, JET MIXING FLOW, SPECIFIC HEAT, VAPOR PRESSURE
Field(s)/Group(s):
Rocket Engines, Ground Support Systems and Facilities for Space Vehicles
Report Date:
1968 Nov 01