Ali Farhan, Zaib A, Loganathan K, Saeed Anwar, Seangwattana Thidaporn, Kumam Poom, Galal Ahmed M
Department of Mathematical Sciences, Federal Urdu University of Arts, Sciences & Technology, Gulshan-e-Iqbal Karachi, 75300, Pakistan.
Department of Mathematics and Statistics, Manipal University Jaipur, Jaipur, 303007, Rajasthan, India.
Heliyon. 2023 Jan 20;9(2):e13091. doi: 10.1016/j.heliyon.2023.e13091. eCollection 2023 Feb.
In comparison to Newtonian fluids, non-Newtonian fluids have fascinating features in heat transportation. Here, newly type of Reiner-Rivlinnanoliquid flow over the revolving disk for viscous dissipation (VD) is being explored in a multiple-slip effect. The inclusion of gyrotactic microorganisms in the nanoliquid enhances the tendency of the nanoparticles. The idea of the intended model is enhanced by considering in the impact of activation energy, thermal radiative, heated convective conditions and entropy minimization. The system of nonlinear PDE is constructed into nonlinear ODE's by applying the von-Karman similarity method and later solved numerically using the BVP4c solver which is considered to study the complicated ordinary differential equations. TheInfluence of various parameters is elaborated and plotted physically through the graphical illustration. By contrasting the reported data in the restricted form to a previously published article, the accuracy of the current model has examined. The impact of a non-Newtonian fluid parameter over the velocity field appeared to showdpreciation in it. The results elucidate that when the wall slip coefficient is larger more torque is needed to maintain constant disk revaluation. Surface heat transmission and wall skin friction are computed for a wide variety of factors. These flows have several real world-applications, including modeling cases that occur in oceanography and geophysics, various industrial fields (such as lumber production).
与牛顿流体相比，非牛顿流体在热传输方面具有迷人的特性。在此，正在研究一种新型的赖纳 - 里夫林纳米液体在旋转圆盘上的流动，以考虑粘性耗散（VD）中的多重滑移效应。纳米液体中包含趋旋光性微生物增强了纳米颗粒的趋势。通过考虑活化能、热辐射、热对流条件和熵最小化的影响，增强了预期模型的概念。通过应用冯·卡门相似方法将非线性偏微分方程组转化为非线性常微分方程组，随后使用BVP4c求解器进行数值求解，该求解器被认为可用于研究复杂的常微分方程。通过图形说明详细阐述并直观呈现了各种参数的影响。通过将当前模型以受限形式报告的数据与先前发表的文章进行对比，检验了当前模型的准确性。非牛顿流体参数对速度场的影响似乎显示出其下降趋势。结果表明，当壁面滑移系数较大时，需要更多的扭矩来维持圆盘的恒定旋转。针对各种因素计算了表面热传递和壁面皮肤摩擦。这些流动在多个实际应用中存在，包括海洋学和地球物理学中出现的建模情况、各种工业领域（如木材生产）。
