An Experimental Study on the Influence of the Fractal Characteristics of X80 Steel Surface Morphology on Water Ring Stability

The surface morphology of X80 steel with hydrophilic underwater oleophobic characteristic is described greater comprehensively and quantitatively in this work by combining fractal dimension multifractal. characteristics was constructed using a chemical etching method. Then, the aid three wettability parameters—contact angle, rolling adhesion work—this study investigated relationship between stability water ring core annular flow. results showed that: (1) specimens increased first then decreased increase reaction time. Besides that, value it than 2, indicating that had obvious characteristics. spectral difference, Δf(α), width, Δα, supplemented description morphology, which consistent scanning electron microscope results. (2) When maximum 2.0808, minimum contact angle distilled on its 50.2°, oil droplets 166.4°. larger properties, more is. This illustrated there strong binding force pipe wall, hence quality efficiency flow improved, conducive to promotion technology field heavy transportation.