In the flow regulation of a magnetically levitated pipeless flow system, so
litary waves may occur, which will lead to pressure fluctuations and surfac
e changes of the Levitated diamagnetic liquid column. The present study ana
lyses a soliton in a magnetic pipe both theoretically and experimentally. A
two-fluid model is employed here. The theoretical analysis is carried out
by a one-dimensional nonviscous and nonlinear method. The experimental stud
y was also carried out by setting two magnetic like pales to produce the ma
gnetic held. using water as the levitated diamagnetic liquid and a diluted
kerosene-base magnetic fluid as the surrounding fluid, coupled with a cam s
ystem to produce the disturbance. It is found that the magnetic pressure ac
ting an the interface can stabilize the interface. The effects of the magne
tic bond number, density ratio of the two fluids and amplitude of the solit
on on the soliton wave velocity are clarified.