For the purpose of studying the impact of vortex generator structure and arrangement on fouling of heat exchange surface

CaCO3 crystallization fouling deposition was simulated and the inside of rectangular channel was decorated with wing type vortex generator.Under the condition of temperature 50 centigrade

velocity 0.2 m·s-1 and CaCO3 concentration about 1000 mg·L-1

the influence of geometrical factors was calculated and analyzed

such as winglet type

attack angle and lengthways distance on surface fouling deposition.The results showed that

at the specific temperature and velocity

surface unit area fouling decreased with increasing angle of attack of the wing vortex generator

and increased with increasing arrangement distance of vortex generator.The fouling on the surface reached a maximum when the distance was 60 mm

and then declined beyond 60 mm.