Numerical Study on Natural Convection and Entropy Generation in Squares and Corrugated Cavities PDF Download
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Author:
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Languages : en
Pages :
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Author:
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Languages : en
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Author: Nguyen Minh Phu
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 0
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Book Description
In this chapter, a water-filled square cavity with left hot wall and right cold wall was numerically investigated. The hot and cold wall temperatures are 10¬∞C and 0¬∞C respectively to examine the density inversion of natural convection water, i.e. water at 4¬∞C. In the middle of the square, there are circular and elliptical bodies to study fluid,Äìstructure interaction in terms of the thermohydraulic behavior and entropy generation. 2D numerical simulation was performed using finite volume method in Ansys fluent software with the assumption of laminar flow. The simulation results are compared with benchmark data to determine reliability. The results indicate that the body insertions increase the convection heat transfer coefficients at the best heat transfer positions due to impingement heat transfer. An increase in heat transfer rate of 1.06 times is observed in the case of circular body compared to none. There are three primary eddies in the cavity with bodies, whereas the cavity without body has two primary eddies. Maximum entropy generation was found in the upper right corner of cavity mainly due to high horizontal temperature gradient. Bodies of circle and vertical ellipse have almost the same thermohydraulic and entropy generation characteristics due to the same horizontal dimension which mainly effects on the downward natural convection current. The entropy generation of cavity with circular body is 1.23 times higher than that of the cavity without body. At positions y/L¬†=¬†1 on the hot wall and y/L¬†=¬†0.74 on the cold wall, the convection heat transfer coefficient is close to zero due to stagnant fluid.
Author: Firuz Kamalov
Publisher: Springer Nature
ISBN: 3031414209
Category : Computer science
Languages : en
Pages : 933
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Book Description
This volume collects the proceedings of the International Conference on Recent Developments in Mathematics (ICRDM), held at Canadian University Dubai, UAE, in August 2022. This is the second of two volumes, with this volume focusing on more applied topics, particularly mathematical modeling and scientific computing, and the first covering recent advances in algebra and analysis. Each chapter identifies existing research problems, the techniques needed to solve them, and a thorough analysis of the obtained results. Advances in Mathematical Modeling and Scientific Computing will appeal to a range of postgraduate students, researchers, and industry professionals interested in exploring recent advancements in applied mathematics.
Author: K. H. Winters
Publisher:
ISBN:
Category : Insulation (Heat)
Languages : en
Pages :
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Author: Pandian Vasant
Publisher: Springer Nature
ISBN: 3030932478
Category : Technology & Engineering
Languages : en
Pages : 1020
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Book Description
This book includes the scientific results of the fourth edition of the International Conference on Intelligent Computing and Optimization which took place at December 30–31, 2021, via ZOOM. The conference objective was to celebrate “Compassion and Wisdom” with researchers, scholars, experts and investigators in Intelligent Computing and Optimization worldwide, to share knowledge, experience, innovation—marvelous opportunity for discourse and mutuality by novel research, invention and creativity. This proceedings encloses the original and innovative scientific fields of optimization and optimal control, renewable energy and sustainability, artificial intelligence and operational research, economics and management, smart cities and rural planning, meta-heuristics and big data analytics, cyber security and blockchains, IoTs and Industry 4.0, mathematical modelling and simulation, health care and medicine.
Author: Katta Ramesh
Publisher: CRC Press
ISBN: 1000933369
Category : Mathematics
Languages : en
Pages : 556
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Book Description
Mathematical Modelling of Fluid Dynamics and Nanofluids serves as a comprehensive resource for various aspects of fluid dynamics simulations, nanofluid preparation, and numerical techniques. The book examines the practical implications and real-world applications of various concepts, including nanofluids, magnetohydrodynamics, heat and mass transfer, and radiation. By encompassing these diverse domains, it offers readers a broad perspective on the interconnectedness of these fields. The primary audience for this book includes researchers and graduate students who possess a keen interest in interdisciplinary studies within the realms of fluid dynamics, nanofluids, and biofluids. Its content caters to those who wish to deepen their knowledge and tackle complex problems at the intersection of these disciplines.
Author: Aroon Shenoy
Publisher: CRC Press
ISBN: 1498760996
Category : Science
Languages : en
Pages : 329
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Book Description
Convective Flow and Heat Transfer from Wavy Surfaces: Viscous Fluids, Porous Media, and Nanofluids addresses the wavy irregular surfaces in heat transfer devices. Fluid flow and heat transfer studies from wavy surfaces have received attention, since they add complexity and require special mathematical techniques. This book considers the flow and heat transfer characteristics from wavy surfaces, providing an understanding of convective behavioral changes.
Author: Rodney C. Schmidt
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 300
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Author: Edward Theodore Hikida
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 104
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Author: SANKAR GANESH SUBRAMANIAN
Publisher: LAP Lambert Academic Publishing
ISBN: 9783843363440
Category :
Languages : en
Pages : 56
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Book Description
A numerical study has been carried out in differentially heated square cavities, which are formed by horizontal adiabatic walls and vertical isothermal walls. Three cases such as Natural convection in a cavity without any fins, with one fin and with two fins each placed equidistant from the center on the hot wall have been considered. Heat transfer by natural convection is studied by numerically solving equations of continuity, momentum and energy. A parametric study is carried out using the following parameters: Rayleigh number from 104 to 107, Prandtl number of 0.729, internal fin length of 0.10 m. A total of 24 cases have been considered and plotted using Fluent.
