Fuel availability studies indicated that the relaxation of the F-44 freeze point specification could greatly increase the yield of F-44 per ballel of crude. A thorough analysis was initiated to insure that the higher freeze point fuel would not form solid wax precipitates during low temperature operations that could impact aircraft mission performance. In order to evaluate the effects of a potential change in the freeze point specification over the entire inventory of United States naval aircraft, a general three dimensional computational fluid dynamics code, PHOENICS 84, was modified for use. Inputs into the code include tank geometry, mission profile, and fuel properties. Outputs from the model include fuel cooldown and holdup, as a function of time in the tank. The accuracy of the code was verified by experimental data obtained during flight and simulator testing of instrumented tanks.
Development of a Computational Model to Predict Low Temperature Fuel Flow Phenomena
1990
13 pages
Report
No indication
English
Aircraft , Jet & Gas Turbine Engines , Fuels , Fluid Mechanics , Aircraft performance , Computational fluid dynamics , Freezing , Fuel flow , Jet engine fuels , Low temperature , Mathematical models , Simulators , Tank geometry , Dimensional analysis , Inventories , Precipitates , Time dependence , United states
The development of a computational model to predict low temperature fuel flow phenomena
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