Review Studies on natural convection within enclosures of various (non
Natural convection and fluid flow in the triangular enclosures have been analyzed extensively in versatile applications. Salmun [42] reported convection patterns in a triangular enclosure filled with air (Pr = 0.72) or water (Pr = 7.1) and 10 2 ⩽ Ra ⩽ 10 5 for various aspect ratios (A = height base = 0.1-1) in the presence of the hot bottom wall, cold hypotenuse and adiabatic vertical wall.
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Explore the latest full-text research PDFs, articles, conference papers, preprints and more on NATURAL CONVECTION. Find methods information, sources, references or conduct a literature review on ...
Natural Convection
Natural convection refers to the process wherein heat, transferred to a fluid, raises its temperature and reduces its density, giving rise to buoyant forces that lift the fluid (due to density difference) and transport the absorbed heat to some other location where it can be removed. ... Concerning the review literature presented by Saidur et ...
A review on natural convection in enclosures for engineering
A review on natural convection in enclosures for engineering applications. The particular case of the parallelogrammic diode cavity ... The principal cavity geometries treated in the literature and their effect on the flow features are revisited. A great variety of configurations of the enclosures with different shapes and inclinations, thermal ...
An exhaustive review on natural convection within complex enclosures
Natural convection and radiation in a solar trapezoidal absorber enclosure of Compact Linear Fresnel Reflector: FLUENT 6.3: They develop a correlation for Nusselt number. Also, they deduced that heat loss can be minimized if the trapezoidal geometric aspect ratio was higher than 2.5 and the ratio of temperature was greater than 0.6. [30]
Review of Natural Convection Within Various Shapes of Enclosures
An exhaustive review of studies on natural convection in enclosures with and without internal bodies of various shapes. Int. J. Heat Mass Transf. 138, 762-795 (2019) Article Google Scholar Sadeghi, M.S.; et al.: On the natural convection of nanofluids in diverse shapes of enclosures: an exhaustive review. J. Thermal Anal.
Natural convection over vertical and horizontal heated flat surfaces: A
Natural convection arising over vertical and horizontal heated flat surfaces is one of the most ubiquitous flows at a range of spatiotemporal scales. Despite significant developments over more than a century contributing to our fundamental understanding of heat transfer in natural convection boundary layers, certain "hidden" characteristics ...
A comprehensive review on natural convection flow and heat transfer
Different natures of natural convection phenomenon including laminar, steady-state and transient, turbulent are covered. Overall, the present review enhances the insight of researchers into choosing the best geometry for thermal process.,A comprehensive review on the most practical geometries in the industrial application is performed.
Turbulence modeling of natural convection in enclosures: A review
In this paper a review of recent developments of turbulence models for natural convection in enclosures is presented. The emphasis is placed on the effect of the treatments of Reynolds stress and turbulent heat flux on the stability and accuracy of the solution for natural convection in enclosures. The turbulence models considered in the preset study are the two-layer k − ɛ model, the shear ...
Full article: New natural convection heat transfer correlations in
Natural convection in closed enclosures has been widely studied both experimentally and numerically due to the special interest in many engineering applications: solar collectors, nuclear reactors, refrigeration in electronic components. ... We performed a literature review for horizontal surfaces in rectangular enclosures. The results found ...
(PDF) A Comprehensive Review of Transient Natural Convection Flow in
This paper presents a comprehensive literature review of the most published papers in the transient laminar. natural convection heat transfer in enclosures. Many important papers in the literature ...
On the natural convection of nanofluids in diverse shapes of enclosures
The ultimate goal of the present review paper is to summarize and discuss the findings of the most recently published literature on natural convection of nanofluids in various enclosures. The review covers five different geometries of enclosures: square, circular, triangular, trapezoidal, and unconventional geometries. The core findings of the reviewed papers are summarized and tabulated in a ...
A comprehensive review on natural convection flow and heat transfer
DOI: 10.1108/HFF-06-2018-0272 Corpus ID: 126266847; A comprehensive review on natural convection flow and heat transfer @article{Rahimi2018ACR, title={A comprehensive review on natural convection flow and heat transfer}, author={Alireza Rahimi and Ali Dehghan Saee and Abbas Kasaeipoor and Emad Hasani Malekshah}, journal={International Journal of Numerical Methods for Heat \& Fluid Flow}, year ...
A Review on the Control Parameters of Natural Convection in Different
Natural convection in cavities is an interesting subject for many researchers. Especially, in recent years, the number of articles written in this regard has grown enormously. This work provides a review of recent natural convection studies. At first, experimental studies were reviewed and, then, numerical studies were examined. Then, the articles were classified based on effective parameters ...
A review on the thermal performance of natural convection in vertical
Natural convection in vertical annular geometry has wide applications, such as in the design of the nuclear reactor, electronic equipment cooling, insulation of aircraft cabin, and control of heating and ventilation in building design, etc. ... Classification of the literature review on natural convection heat transfer in a vertical annulus ...
PDF Numerical Simulation of Natural Turbulent Convection with Vorticity
II. Literature Review Numerous studies have been performed by different researchers on naturally occurring turbulence convection in enclosed cavities. In a rectangle-shaped confinement with partially insulated walls that trans- port heat at local substructure heating, [1]explored the effects of natural convection on turbulence.
A Review on Solar Chimneys: From Natural Convection Fundamentals to
This work presents an overview of (passive) solar chimney research, from the natural convection fundamentals to the recent progress for achieving thermohydraulic best-performance. Solar chimneys are attractive because they contribute to increasing the efficiency in air conditioning processes for dwellings and buildings, and therefore also aid to reduction in greenhouse gas emissions.
PDF Numerical Investigation of Natural Turbulence Convection in A Three
different scholars proposes different models for simulating turbulent convection in an enclosed chamber. For example, research done by Gatheri (1997) on localized heating and cooling. k-ɛ model was used to simulate natural turbulent convection of fluid in an enclosed chamber. Also, a
PDF A Numerical Study of Turbulent Natural Convection in A Rectangular
LITERATURE REVIEW Mehdi and Mehrdad (2010) did an investigation on turbulent mixed convection of flow of air in vertical tubes using a zonal turbulence k -ε model. The buoyancy force effect on the heat transfer was also investigated. Geniy and Mikhail (2010), did a study natural convection on turbulence in a rectangular enclosure
An experimental study of natural convection on a vertical surface with
The literature review related natural convection on the vertical surface is discussed in the following, which may serve as a background for the present study. Interests of natural convection on a uniformly isothermal heating/cooling vertical wall have never been flagging.
Natural Convection
Concerning the review literature presented by Saidur et al. (2011), nanofluids can be employed in a broad range of thermal devices such as solar water heating systems ... A comprehensive review on natural convection in triangular enclosures is reported by Kamiyo et al. [33]. Their review focused on the whole range of the buoyancy-induced flow ...
Natural convection induced by the absorption of solar radiation: A review
The present paper reviews previous analytical, experimental and numerical studies reported in literature concerning natural convection driven by absorption of thermal radiation. Many of the reviewed studies were motivated by the interest of investigators to understand the physical processes in volumetric absorption thermal radiation in a fluid ...
Cyclodextrin Complexes for the Treatment of Chagas Disease: A ...
Cyclodextrins are ring-shaped sugars used as additives in medications to improve solubility, stability, and sensory characteristics. Despite being widespread, Chagas disease is neglected because of the limitations of available medications. This study aims to review the compounds used in the formation of inclusion complexes for the treatment of Chagas disease, analyzing the incorporated ...
Review for prediction of evaporation rate at natural convection
1.2 Literature review of the existing correlations for natural convection for heated liquid. In the publications described above, the water evaporation under natural conditions was studied, but there were also articles where the fluid was heated by various methods.
Harnessing cellular therapeutics for type 1 diabetes mellitus ...
Type 1 diabetes mellitus (T1DM) is an autoimmune disease affecting 8.75 million people worldwide, of whom ~1.52 million are <20 years old 1.According to the US Centers for Disease Control and ...
Progressive trend, conceptual terminology, and future directions of
Climate change and urbanization have caused environmental problems to cities, making it critical to build a low-carbon, resilient, and sustainable urban environment. Green façade (GFA) is an important nature-based solution for implementation by exploring urban vertical space. GFA is often expected to meet versatile needs across different fields, but existing literature has not well documented ...
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Natural convection and fluid flow in the triangular enclosures have been analyzed extensively in versatile applications. Salmun [42] reported convection patterns in a triangular enclosure filled with air (Pr = 0.72) or water (Pr = 7.1) and 10 2 ⩽ Ra ⩽ 10 5 for various aspect ratios (A = height base = 0.1-1) in the presence of the hot bottom wall, cold hypotenuse and adiabatic vertical wall.
Explore the latest full-text research PDFs, articles, conference papers, preprints and more on NATURAL CONVECTION. Find methods information, sources, references or conduct a literature review on ...
Natural convection refers to the process wherein heat, transferred to a fluid, raises its temperature and reduces its density, giving rise to buoyant forces that lift the fluid (due to density difference) and transport the absorbed heat to some other location where it can be removed. ... Concerning the review literature presented by Saidur et ...
A review on natural convection in enclosures for engineering applications. The particular case of the parallelogrammic diode cavity ... The principal cavity geometries treated in the literature and their effect on the flow features are revisited. A great variety of configurations of the enclosures with different shapes and inclinations, thermal ...
Natural convection and radiation in a solar trapezoidal absorber enclosure of Compact Linear Fresnel Reflector: FLUENT 6.3: They develop a correlation for Nusselt number. Also, they deduced that heat loss can be minimized if the trapezoidal geometric aspect ratio was higher than 2.5 and the ratio of temperature was greater than 0.6. [30]
An exhaustive review of studies on natural convection in enclosures with and without internal bodies of various shapes. Int. J. Heat Mass Transf. 138, 762-795 (2019) Article Google Scholar Sadeghi, M.S.; et al.: On the natural convection of nanofluids in diverse shapes of enclosures: an exhaustive review. J. Thermal Anal.
Natural convection arising over vertical and horizontal heated flat surfaces is one of the most ubiquitous flows at a range of spatiotemporal scales. Despite significant developments over more than a century contributing to our fundamental understanding of heat transfer in natural convection boundary layers, certain "hidden" characteristics ...
Different natures of natural convection phenomenon including laminar, steady-state and transient, turbulent are covered. Overall, the present review enhances the insight of researchers into choosing the best geometry for thermal process.,A comprehensive review on the most practical geometries in the industrial application is performed.
In this paper a review of recent developments of turbulence models for natural convection in enclosures is presented. The emphasis is placed on the effect of the treatments of Reynolds stress and turbulent heat flux on the stability and accuracy of the solution for natural convection in enclosures. The turbulence models considered in the preset study are the two-layer k − ɛ model, the shear ...
Natural convection in closed enclosures has been widely studied both experimentally and numerically due to the special interest in many engineering applications: solar collectors, nuclear reactors, refrigeration in electronic components. ... We performed a literature review for horizontal surfaces in rectangular enclosures. The results found ...
This paper presents a comprehensive literature review of the most published papers in the transient laminar. natural convection heat transfer in enclosures. Many important papers in the literature ...
The ultimate goal of the present review paper is to summarize and discuss the findings of the most recently published literature on natural convection of nanofluids in various enclosures. The review covers five different geometries of enclosures: square, circular, triangular, trapezoidal, and unconventional geometries. The core findings of the reviewed papers are summarized and tabulated in a ...
DOI: 10.1108/HFF-06-2018-0272 Corpus ID: 126266847; A comprehensive review on natural convection flow and heat transfer @article{Rahimi2018ACR, title={A comprehensive review on natural convection flow and heat transfer}, author={Alireza Rahimi and Ali Dehghan Saee and Abbas Kasaeipoor and Emad Hasani Malekshah}, journal={International Journal of Numerical Methods for Heat \& Fluid Flow}, year ...
Natural convection in cavities is an interesting subject for many researchers. Especially, in recent years, the number of articles written in this regard has grown enormously. This work provides a review of recent natural convection studies. At first, experimental studies were reviewed and, then, numerical studies were examined. Then, the articles were classified based on effective parameters ...
Natural convection in vertical annular geometry has wide applications, such as in the design of the nuclear reactor, electronic equipment cooling, insulation of aircraft cabin, and control of heating and ventilation in building design, etc. ... Classification of the literature review on natural convection heat transfer in a vertical annulus ...
II. Literature Review Numerous studies have been performed by different researchers on naturally occurring turbulence convection in enclosed cavities. In a rectangle-shaped confinement with partially insulated walls that trans- port heat at local substructure heating, [1]explored the effects of natural convection on turbulence.
This work presents an overview of (passive) solar chimney research, from the natural convection fundamentals to the recent progress for achieving thermohydraulic best-performance. Solar chimneys are attractive because they contribute to increasing the efficiency in air conditioning processes for dwellings and buildings, and therefore also aid to reduction in greenhouse gas emissions.
different scholars proposes different models for simulating turbulent convection in an enclosed chamber. For example, research done by Gatheri (1997) on localized heating and cooling. k-ɛ model was used to simulate natural turbulent convection of fluid in an enclosed chamber. Also, a
LITERATURE REVIEW Mehdi and Mehrdad (2010) did an investigation on turbulent mixed convection of flow of air in vertical tubes using a zonal turbulence k -ε model. The buoyancy force effect on the heat transfer was also investigated. Geniy and Mikhail (2010), did a study natural convection on turbulence in a rectangular enclosure
The literature review related natural convection on the vertical surface is discussed in the following, which may serve as a background for the present study. Interests of natural convection on a uniformly isothermal heating/cooling vertical wall have never been flagging.
Concerning the review literature presented by Saidur et al. (2011), nanofluids can be employed in a broad range of thermal devices such as solar water heating systems ... A comprehensive review on natural convection in triangular enclosures is reported by Kamiyo et al. [33]. Their review focused on the whole range of the buoyancy-induced flow ...
The present paper reviews previous analytical, experimental and numerical studies reported in literature concerning natural convection driven by absorption of thermal radiation. Many of the reviewed studies were motivated by the interest of investigators to understand the physical processes in volumetric absorption thermal radiation in a fluid ...
Cyclodextrins are ring-shaped sugars used as additives in medications to improve solubility, stability, and sensory characteristics. Despite being widespread, Chagas disease is neglected because of the limitations of available medications. This study aims to review the compounds used in the formation of inclusion complexes for the treatment of Chagas disease, analyzing the incorporated ...
1.2 Literature review of the existing correlations for natural convection for heated liquid. In the publications described above, the water evaporation under natural conditions was studied, but there were also articles where the fluid was heated by various methods.
Type 1 diabetes mellitus (T1DM) is an autoimmune disease affecting 8.75 million people worldwide, of whom ~1.52 million are <20 years old 1.According to the US Centers for Disease Control and ...
Climate change and urbanization have caused environmental problems to cities, making it critical to build a low-carbon, resilient, and sustainable urban environment. Green façade (GFA) is an important nature-based solution for implementation by exploring urban vertical space. GFA is often expected to meet versatile needs across different fields, but existing literature has not well documented ...