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Numerical computation of Brownian motion and thermophoresis effects on rotational micropolar nanomaterials with activation energy

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Propulsion and Power Research 2023年第3期12卷 397-409页

作者： Hassan Waqas Shan Ali Khan bagh Ali dong Liu Taseer Muhammad Enran Hou School of Energy and Power Engineering Jiangsu UniversityZhenjiang 212013China department of Mathematics Government College University FaisalabadLayyah Campus 31200Pakistan Faculty of Computer Science and Information Technology Superior UniversityLahore 54000Pakistan department of Mathematics College of SciencesKing Khalid UniversityAbha 61413Saudi Arabia College of Mathematics Huaibei Normal UniversityHuaibei 235000China

The current article investigates the numerical study of the micropolar nanofluid flow through a 3d rotating *** communication may manipulate for the aim such as the delivery of the drug,cooling of electronic chips,nanoscience and the fields of *** impact of heat source/sink is *** motion and thermophoresis aspects are *** rotating sheet with the impacts of darcy-Forchheimer law is also ***,the influence of activation energy is analyzed in the current *** numerical analysis is simplified with the help of befitted resemblance *** succor of the shooting algorithm with built-in solver bvp4c MATLAB software is used for the numerical solution of nonlinear transformed *** consequences of different physical factors on the physical engineering quantities and the subjective fields were examined and *** to outcomes,it can be analyzed that the flow profile declined with the rotational *** is observed that angular velocity diminishes via a larger porosity ***,the temperature gradient is declined via a larger magnitude of the Prandtl *** heat transfer is enhanced in the occurrence of Brownian *** activations energy parameter causes an increment in the volumetric concentration ***,the local Nusselt number is reduced via a greater estimation of the porosity parameter.

关键词： Micropolar nanofluid flow darcy-Forchheimer law Heat source/sink Activation energy Bvp4c

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Petrogenesis of the Late Cretaceous Tholeiitic Volcanism and Oceanic Island Arc Affinity of the Chagai Arc, Western Pakistan

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Acta Geologica Sinica(English Edition) 2017年第4期91卷 1248-1263页

作者： Rehanul Haq SIddIQUI M. Qasim JAN Mohammad Asif KHAN M. Ishaq KAKAR John d. FOdEN Baluchistan University of Information Technology Engineering and Management Sciences Quetta Pakistan National Centre of Excellence in Geology University of Peshawar Peshawar & COMSTECH Islamabad Pakistan Karakoram International University Gilgit Pakistan Centre of Excellence in Mineralogy University of Baluchistan Quetta Pakistan department of Earth Sciences University of Adelaide SA 5005 Australia

The Late Cretaceous Chagai arc outcrops in western Pakistan, southern Afghanistan and eastern Iran. It is in the Tethyan convergence zone, formed by northward subduction of the Arabian oceanic plate beneath the Afghan block. The oldest unit of the Chagai arc is the Late Cretaceous Sinjrani Volcanic Group. This is composed of porphyritic lava flows and volcaniclastic rocks, and subordinate shale, sandstone, limestone and chert. The flows are fractionated low-K tholeiitic basalts, basaltic- andesites, and andesites. Relative enrichment in their LILE and depletion in HFSE, and negative Nb and Ta and positive K, Ba and Sr anomalies point to a subduction-related origin. Compared to MORB, the least fractionated Chagai basalts have low Na2O, Fe2O3^T, CaO, Ti, Zr, Y and ^87Sr/^86Sr. Rather than an Andean setting, these results suggest derivation from a highly depleted mantle in an intraoceanic arc formed by Late Cretaceous convergence in the Ceno-Tethys. The segmented subduction zone formed between Gondwana and a collage of small continental blocks （Iran, Afghan, Karakoram, Lhasa and Burma） was accompanied by a chain of oceanic island arcs and suprasubduction ophiolites including Semail, Zagros, Chagai-Raskoh, Kandahar, Muslim bagh, Waziristan and Kohistan-Ladakh, Nidar, Nagaland and Manipur. These complexes accreted to the southern margin of Eurasia in the Late Cretaceous.

关键词： Chagai arc tholeiitic volcanics Late Cretaceous western Pakistan

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