Interfacial wave motion in an impermeable rigid channel with stratified density fluid system, 1, Wave evolution related to various energy conditions

The wave flume used in this laboratory experiment is 12 meter long with a cross-section 0.5 m wide and 0.7m in height.The Experiments were conducted to investigate the generation of internal solitary waves (ISW) in a two-layered free surface fluid system.The experimental control conditions include the thickness ratio between the upper and lower fluid H₁/H₂,step depth η₀,and density ratio.The internal waves are thus generated with various waveform types Given positive potential energies,an elevation-type ISW is followed by an anticlockwise overturning motion at the interface; on the other hand,an ISW of depression-type is generated by clockwise motion.The inappropriate configuration in the flume will produce wave fluctuations without period.