旋转锥上强化传热传质的数值模拟

IF 2.8 Q2 THERMODYNAMICS
Heat Transfer Pub Date : 2024-12-21 DOI:10.1002/htj.23251
Saquib Ul Zaman, Sameed Ahmad
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引用次数: 0

摘要

在这项工作中,我们研究了热交换和质量交换对流变纳米流体在旋转锥上随时间的对流流动的综合影响。通过相似变换,得到了具有分离器温度边界条件的纺丝锥非线性微分方程的数值排列。讨论了不同参数对速度、温度和浓度分布的影响。切向速度随底波拉数的增加而减小,而随角速度比、弛豫与延迟时间比和浮力参数的增大而增大。普朗特数的膨胀降低了边界层的温度和厚度。努塞尔数和皮肤不愈合观察也被考虑。发现努塞尔数通过增大亮度参数和普朗特数而增大,而减小德博拉数而增大。我们还注意到,Sherwood数在Deborah和Prandtl数中逐渐下降,但随着浮力参数的增加而上升。以图形显示了各参数对温度的影响,并在表中包含了面剪应力表值和热转移率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Numerical Simulations of Heat and Mass Transfer Enhancement Over a Rotating Cone

In this work, we investigate the combined effects of heat and mass exchange on the time-dependent convectional flow of a rheological nanofluid across a rotating cone. A numerical arrangement of nonlinear differential equations is obtained for spinning cones with separator temperature boundary conditions by similarity transformation. The effect of different parameters on the velocity, temperature, and concentration profiles are discussed. Tangential velocity is observed to decrease with an increase in the Deborah number, whereas it increases with increasing values of the angular velocity ratio, relaxation to the retardation time ratio, and buoyancy parameter. Expansion in the Prandtl number is noted to decrease the boundary-layer temperature and thickness. Nusselt number and skin disunion observations are also considered. It is discovered that the Nusselt number expands by expanding the lightness parameter and Prandtl number, whereas it increases by decreasing the Deborah number. We also noticed that the Sherwood number falls incrementally in Deborah and Prandtl numbers, but it upsurges with an increase in the buoyancy parameter. The effect of parameters on temperature is graphically displayed, and the face shear stress tabulated values and heat shift rate are included in tables.

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来源期刊
Heat Transfer
Heat Transfer THERMODYNAMICS-
CiteScore
6.30
自引率
19.40%
发文量
342
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