流体机械2025，Vol.53Issue(11)：9-16,8.DOI:10.3969/j.issn.1005-0329.2025.11.002
水基钻井液在蛇形板式换热通道内的流动换热特性研究
Study on flow and heat transfer characteristics of water-based drilling fluid in serpentine plate heat exchange channels
摘要
Abstract
Aiming at the special flow and heat transfer characteristics of water-based drilling fluid power-law fluid,a combined method of experimental and numerical simulation was adopted to systematically study the flow and heat transfer behavior of power-law fluid in serpentine channels.The experimental research was conducted within the Reynolds number(Re)range of 200～600,and the results show that the power-law fluid still maintains high viscosity in this interval,with both convective heat transfer coefficient and pressure drop increasing with flow velocity,among which the maximum increase of convective heat transfer coefficient is 29.9%,and the maximum increase of pressure drop is 40.5%.The numerical simulation part covers the range of Re=240～2 900,when the Re value increases from 700 to 2 900,the Nusselt number(Nu)increases by 290.2%,while the pressure drop only increases by 109.9%.By comparing the flow and heat transfer characteristics of serpentine channels and straight channels,it is found that when Re≤700,the difference in Nu values between the two is small;when Re>700,the heat transfer performance improvement of serpentine channels is significantly higher than that of straight channels.In addition,the Nu value of power-law fluid in plate structures gradually deviates from the calculated values based on empirical correlations for Newtonian fluids as the Re value increases,and is generally lower than the prediction results of traditional empirical formulas.The research can provide references for the optimal design of efficient and compact drilling fluid heat exchange devices on offshore drilling platforms.关键词
板式换热装置/蛇形通道/幂律流体/钻井液Key words
plate heat exchange device/serpentine channel/power-law fluid/drilling fluid分类
机械制造引用本文复制引用
XU Jie,ZHANG Yuchen,YUE Ming,LI Linbo,XI Jiangjun,SHI Chenghui..水基钻井液在蛇形板式换热通道内的流动换热特性研究[J].流体机械,2025,53(11):9-16,8.基金项目
国家科技重大专项(2024ZD1403803) （2024ZD1403803）
中海石油(中国)有限公司科技项目(KJZH-2023-2304) （中国）
