Local measurement of bubbly flow in helically coiled tubes using double-sensor conductivity probe

Experimental investigation on flow boiling bubble motion under ultrasonic field in vertical minichannel by using bubble tracking algorithm

“…Xu et al [23] found that the fully developed turbulent gas–liquid slug flow and slug translation velocity depended on the local maximum velocity adjacent to the trailing edge of the Taylor bubbles in a long horizontal pipe with an inner diameter of 51 mm. Many methods have been employed to investigate the bubble velocity during flow boiling in minichannels [24] , [25] , [26] , [27] , [28] . Pavlov et al [24] used a high-speed camera to trace the motion of a single bubble in a rectangular minichannel.…”