Even with the recent extensive study into superhydrophobic surfaces, the fabrication of such surfaces on the inside walls of a pipe remains challenging. In this work we report a convenient bi-layered pipe design using a thin superhydrophobic metallic mesh formed into a tube, supported inside another pipe. A flow system was constructed to test the fabricated bi-layer pipeline, which allowed for ...

* Project supported by the National Science Foundation of China(Grant No. 10972123) Corresponding author: DU Guang-sheng ABSTRACT : The ultrasonic flowmeter has been widely used in the industrial flow measurement. The flow measurement accuracy depends on the relationship of the profile-linear average velocity. But this relationship of the transition zone is not available at present. In this pap...

With the increasing demand for automation in agriculture, more and researchers are exploring application of digital twin agricultural production. However, existing studies have predominantly focused on enhancing resource utilization efficiency improving irrigation control systems production through implementation twins. Unfortunately, there is a noticeable research gap when it comes to applying...

To provide new insights into the evolution of kimberlitic magmas, we have undertaken a detailed petrographic and mineralogical investigation highly evolved carbonate–phlogopite-bearing kimberlites Kepino cluster, Arkhangelsk kimberlite province, Russia. The are represented by volcanoclastic breccias massive macrocrystic units within pipes as well coherent porphyritic sills. from similar in petr...

The development of mathematical models for describing the dynamic behaviours of fluid conveying pipes, micro-pipes and nanotubes under the influence of some thermo-mechanical parameters results into nonlinear equations that are very difficult to solve analytically. In cases where the exact analytical solutions are presented either in implicit or explicit forms, high skills and rigorous mathemat...

The present work investigates the effect of the elliptical three-dimensional (3D) cracks on a pipe with thickness transition, considering internal pressure. Level sets were defined using the extended finite element method (XFEM), the stress intensity factors (SIFs) of 3D cracks were investigated and compared between straight pipes and pipes with thickness transition. The results show that the X...