Spacecraft dynamical distribution of fluid stresses activated by gravity-jitter-induced slosh waves

Attitude-Adjustment-Induced Sloshing Characteristics in a Satellite Propellant Tank

“…Dodge and Garza [1] compared the simulated results with the measured data in a low-g environment to resolve the liquid sloshing force as a function of the excitation frequency. Due to the slosh-wave excitations driven by the gravity-gradient and gravity-jitter accelerations, Hung's group [2,3] also performed simulations to calculate the fluctuations of the sloshing impact forces and moments exerted on the tank wall under reduced gravities. Grayson [4] proposed a thermo-fluid-dynamic numerical model and conducted simulations to study the fluid-sloshing phenomenon for proper settlement of the liquid propellants during various mission modes of an orbital spacemaneuvering vehicle.…”

Investigation of liquid–gas interfacial shapes in reduced gravitational environments

“…The calculated profiles were qualitatively consistent with Leslie's measurements. Based on the timedependent Navier-Stokes equations with the treatment of continuous stress across the liquid-gas interface, Hung et al [7,8] also performed analysis to calculate impact forces and moments exerted on the tank wall due to the slosh-wave excitations driven by the gravity-gradient and gravity-jitter accelerations. The liquid resettlement problem was studied to ensure that propellant could be properly reoriented over the tank outlet without any gasbubble entrainment under reduced gravity.…”