Interaction between Boiling Bubbles on a Heated Wire

When the bubbles grow from the surface of heated wall,violent interaction takes place among them.Disturbance in temperature field plays a key role by affecting forming and growing of bubbles.The relationship between bubbles and temperature distribution of a heated thread was analyzed.The physical models and mathematic descriptions were proposed to understand the mechanism of interaction among bubbles.The temperature sharp decrease was found to greatly depress the bubble generation in the adjacent region.The observation indicated that boiling on a wire and boiling on wall are different.Bubble can cause major temperature decrease on a thread.This kind of temperature decease even breaks off bubble growing and/or generation.It is an important reason for higher superheat of boiling on a thread due to its weaker capability of heat conduction.Finally,computer simulation was carried out and some new aspects were observed.