Integrated CFD and Controls Analysis Interface for High Accuracy Liquid Propellant Slosh Predictions

Marsell, Brandon ; Schallhorn, Paul ; Griffin, David ; Roth, Jacob

PID  :  NTRS Document ID: 20110012478
RP-ID  :  KSC-2011-099
RP-ID  :  KSC-2011-099R
RP-ID  :  KSC-2011-099RR

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Coupling computational fluid dynamics (CFD) with a controls analysis tool elegantly allows for high accuracy predictions of the interaction between sloshing liquid propellants and the control system of a launch vehicle. Instead of relying on mechanical analogs which are n0t va lid during all stages of flight, this method allows for a direct link between the vehicle dynamic environments calculated by the solver in the controls analysis tool to the fluid now equations solved by the CFD code. This paper describes such a coupling methodology, presents the results of a series of test cases, and compares said results against equivalent results from extensively validated tools. The coupling methodology, described herein, has proven to be highly accurate in a variety of different cases.