Surface erosion behavior of an intrusive probe in pipe flow

Effect of Four Kinds of Terpene Monomers on Activities of Acetylcholinesterase in <i>Zophobas morio</i> Larvae

“…The fumigation activities were evaluated by Flask sealed fumigating method [6]. Healthy, strong, the same as size and colour of larvae were put into the 1000 mL Flask.…”

Simulation study of rotor erosion for a continuous-wave pulse generator by computational fluid dynamics

“…The rotor is eroded by the high-flow drilling fluid and the entrained particle during pulse generation; in the long run, the structure CONTACT Zhidan Yan zhidanyan@upc.edu.cn will be inevitably worn and deformed, leading to reduced quality of the uploaded pulse signal, increased difficulty in demodulation and decoding of ground signal, and serious effects on the normal development of on-site drilling operations (Yan, Geng, & Wei, 2018). Zhang et al (2015;Hu et al, 2017) used the computational fluid dynamics (CFD) method to examine the effects of drilling parameters, such as throttle opening, drilling fluid flow rate, and solid particle mass flow, on the erosion of the pressure drilling throttle valve. The flow rate of the drilling fluid exerted the greatest effect on erosion rate, followed by solid mass flow rate.…”

“…It is shown that existing literature mainly observes the erosion results by erosion principle, simulation prediction, and actual test, focused on the influence of drilling tool material, drilling fluid flow rate, and solid particles on the erosion of drilling tools (Hu et al, 2017;Huang, Xie, Huang, Li, & Xie, 2017;Liu, Xu, and Qi, 2005a;Liu, Xu, Qi, & Li, 2005b;Zhang et al, 2015;Zhao et al, 2018), lacking detailed analysis of rotor erosion caused by various parameters of drilling fluid. The present study aims to determine the influence of various drilling fluid parameters on rotor erosion.…”