The influence discipline of temperature of high viscosity fluid jetting

Viscosity which varies with the temperature remarkably was one of an important factor for fluid jetting. In this paper finite element models of fluid jet-dispenser for thermal analysis and fluid-structure interaction analysis were built through ANSYS. The decided heat flux was loaded to the finite element model for thermal analysis to obtain the temperature field of the fluid field. So the average viscosity of the heated fluid can be worked out. And then the accumulative volume, average velocity and equivalent velocity of two different kinds of fluid between in heating and room temperature condition in fluid-structure interface analysis were compared. The results indicted that the heated fluid was apt to spout. And the losing heat was also worked out in jetting stage which was a reference to next work and designing the heater.