Journal
EXPERIMENTAL THERMAL AND FLUID SCIENCE
Volume 118, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.expthermflusci.2020.110148
Keywords
Liquid sloshing; Intermediate liquid depth; Viscous effect; Pressure; Fast Fourier transform
Funding
- National Natural Science Foundation of China [41601011]
- Openfund project of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation [PCL2020011]
Ask authors/readers for more resources
The viscous effects on the horizontally-excited sloshing under resonant and off-resonant excitations are investigated experimentally. Both tap water and glycerin at different temperatures are chosen as the experimental fluids. The intermediate depth ratio h/L = 0.2 is chosen. The sloshing of water and glycerin at four kinematic viscosities ranging from 1.14 x 10(-6) m(2)/s to 1.1 x 10(-3) m(2)/s is studied. Through well-controlled experiments, by analyzing the pressure and free surface snapshot, the sloshing gradually turns from the resonant-steady state to the harmonic state for a certain viscosity threshold. The free surface profiles of low and high viscous fluids under resonant excitations are further analyzed, in connection with the dynamic pressures and excitation accelerations. The peak dynamic pressures are successively out of synchrony with the peak excitation accelerations, obvious phase shift occurs which eventually goes to one fifth of the resonant frequency. Through the fast Fourier transform, it is found that the dominant response frequencies of high viscous fluids are integral times of the forcing frequency behaving a distinct state from the low viscous fluids especially for the water.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available