具有幂律纳米流体流动的导管内辐射热传递的计算评估
A computational assessment of radiative heat transport within a conduit having power-law nanofluid flow
Sohail REHMAN 1Syed Inayat Ali SHAH 2HASHIM 3Sana Ben MOUSSA4
作者信息
- 1. School of Materials Sciences,Georgia Institute of Technology,Atlanta 30318,Georgia,USA;Department of Mathematics,Islamia College Peshawar,Peshawar,Pakistan
- 2. Department of Mathematics,Islamia College Peshawar,Peshawar,Pakistan
- 3. Department of Mathematics&Statistics,The University of Haripur,Haripur 22620,Pakistan
- 4. Faculty of Science and Arts,Mohail Asser,King Khalid University,Saudi Arabia
- 折叠
摘要
利用因热源作用而收缩和膨胀的导管研究一阶化学反应和热辐射对幂律Carreau流体热质传输的影响.考虑了以热辐射形式产生热量的流体流动的体积热源和非线性热辐射.采用基于射击简单算法的RK-4方法对径向模式下的质量、动量、能量和物种浓度等基本守恒方程进行了重构和数值求解.考虑粒子的布朗性和热泳性,纳米粒子存在的模型是现象模型.将动量方程与扩展Jaffrey-Hamel问题的Carreau模型组合在一起.不同幂律指数对流体摩擦传热、传热量和传质的影响主要表现在流变性能上,说明剪切增稠型流体比剪切减薄型流体更有效.热传输率在热源处最大,在幂指数最大化时最小.这些研究可能有助于开发一种物理上合理的方法,用于系统化评估收缩/扩张通道中的流体流动和能量使用.
Abstract
The influence of first order chemical reaction and thermal radiation on hydromagnetic heat and mass transport of power-law Carreau fluid flow via a convergent and divergent conduit due to heat source is investigated.A volumetric heat generating source and non-linear thermal radiation is considered for the fluid flow that is producing heat in the form of thermal radiation.The basic conservation equations including mass,momentum,energy,and species concentration in radial mode are reconstructed and solved numerically with RK-4 method based on the shooting simple algorithm.The model used for the existence of nanoparticles is the phenomenon model,considering the Brownian and thermophoresis of the particles.The momentum equation is assembled with Carreau model which extend the Jaffrey-Hamel problem.The effects of different power-law indices on thermal transmission due to fluid friction,heat,and mass transfer are primarily manifested in rheological properties,which elucidates that the shear-thickening fluids are more effective than the shear-thinning fluids.The rate of thermal transmission is found to be maximum on heat sources and minimum on maximizing the power law index.The investigations might aid in developing a method that is physically sound for systematizing assessments of fluid flow and energy use in contracting/expanding channels.
关键词
热传导/热辐射/发热/Jaffrey-Hamel流/幂律Carreau流体/数值结果Key words
heat conduction/thermal radiation/heat generation/Jaffrey-Hamel flow/power-law Carreu fluid/numerical results引用本文复制引用
基金项目
Deanship of Scientific Research at King Khalid University,Abha,KAS(RGP-1/3/43)
出版年
2023
NETL
NSTL
维普
万方数据