Simulation of fuel system with features for controlling air bubble generated for aircraft application
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[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] In this spill tube project an analytical model of the distribution of pressure of the air trapped in the siphoning tube system, where fuel transfer from sealed tank to the adjacent tanks occurs is to be created. This research is a part of large fuel tank research project and this is being sponsored by Boeing Company. A series of experiments were performed in order to characterize the flow of fluid in the entire spill tube with different diameters. The experiments were based on the test matrix that was being provided by Boeing, these were kept in increasing order so as to obtain simple conclusion and trends can be drawn in the form of analytical model that were based on the equations obtained from the fluid mechanics books. The experiments performed per spill tube were of two types first in which 0% downstream quantity were taken and second in which 50% downstream quantity were taken. The analytical model was developed using Simulink on the completion of the test matrix. The equations implemented in Simulink were compared with the experimental data so as to ensure the accuracy of the presentation. For various bell mouth geometries, pressure was optimized with respect to the input flow of mass.
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