碳纳米流体的Darcy-Forchheimer流体特征在化学物质框架中的数值意义

摘要

本文对碳纳米管中发生的Darcy-Forchheimer流体化学反应进行了研究.当碳纳米管被认为是纳米材料时,使用水作基液,由于指数拉伸弯曲表面流动的产生而出现热源.采用纳米液体的薛氏关系式研究了碳纳米管(单壁、多壁碳纳米管)的特性.利用变换技术得到非线性常微分方程,对控制系统进行数值求解.用图示说明所涉及的参数在增加表面摩擦系数的情况下,对流动、温度、浓度、热传递速率(Nusselt数)的影响.速度随着Forchheimer数和孔隙度的增大而减慢,但温度则呈相反的趋势.与单壁碳纳米管相比,多壁碳纳米管的作用更显著.%Present work reports chemically reacting Darcy-Forchheimer flow of nanotubes. Water is utilized as base liquid while carbon nanotubes are considered nanomaterial. An exponential stretchable curved surface flow is originated. Heat source is present. Xue relation of nanoliquid is employed to explore the feature of CNTs (single and multi-wall). Transformation technique is adopted in order to achieve non-linear ordinary differential systems. The governing systems are solved numerically. Effects of involved parameters on flow, temperature, concentration, heat transfer rate (Nusselt number) with addition of skin friction coefficient are illustrated graphically. Decay in velocity is noted with an increment in Forchheimer number and porosity parameter while opposite impact is seen for temperature. Moreover, role of MWCNTs is prominent when compared with SWCNTs.