4.7 Article

Mixed Convection in a Horizontal Channel-Cavity Arrangement with Different Heat Source Locations

Related references

Note: Only part of the references are listed.
Article Thermodynamics

Numerical study of mixed and free convection heat transfer under ocean conditions

Guanqun Ding et al.

Summary: This study numerically investigates the mixed and free convection heat transfer of vertical upward flow under ocean conditions. Experimental data is used to validate the turbulent heat transfer in a smooth circular tube at low flow rates and the effects of ocean conditions. A CFD method based on the v 2-f turbulence model and additional inertial force is established. The analysis reveals that the heat transfer under ocean conditions depends on the Buoyancy parameter. The introduction of pulsating flow breaks the symmetry of heat transfer and causes an increase in overall heat transfer but further aggravates the local heat transfer deterioration.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2023)

Article Thermodynamics

Simultaneous development of the hydrodynamic and thermal boundary layers of mixed convective laminar flow through a horizontal tube with a constant heat flux

Marilize Everts et al.

Summary: The thermal and hydrodynamic features of developing mixed convective laminar flow in a long horizontal tube were investigated numerically and experimentally. It was found that the conventional understanding of the merging boundary layer in internal tube flows needed modification, and methods were proposed to determine the development of the hydrodynamic and thermal boundary layers. The experimental and numerical results showed that the local mixed convective Nusselt numbers decreased near the tube inlet but increased along the tube length as secondary flow increased significantly.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2023)

Article Thermodynamics

Mixed convection heat transfer and transient flow of high-pressure gas in a large-scale cavity with rotating blade

Zhuang Zhang et al.

Summary: This study investigates the turbulent mixed convection heat transfer in a large-scale closed cavity under high-pressure condition. The results show that increasing the Reynolds number enhances the turbulent flow and heat transfer process. Different impacts on the flow and thermal transport are observed with changing gas pressure, while changing heating surface temperature has a more significant influence on the flow field and heat transfer inside the reactor compared to the enclosure. The average Nusselt number is positively correlated with gas pressure.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2023)

Article Thermodynamics

Linear and quadratic convection on 3D flow with transpiration and hybrid nanoparticles

M. Dinesh Kumar et al.

Summary: Hybrid modeling is important in various systems and has been used to describe the mixture of liquids. This study investigates the effects of different factors on three-dimensional flow characteristics and thermal radiation situations. The results show variations in temperature distribution, conductivity, and skin friction coefficient among the three mixing compositions.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2022)

Article Mathematics

MHD Hybrid Nanofluid Mixed Convection Heat Transfer and Entropy Generation in a 3-D Triangular Porous Cavity with Zigzag Wall and Rotating Cylinder

Aissa Abderrahmane et al.

Summary: The study conducted numerical simulations of mixed convective heat transfer in a three-dimensional triangular enclosure with a revolving circular cylinder, and provided recommendations for parameter values to enhance heat transfer rates in this system.

MATHEMATICS (2022)

Article Mathematics, Applied

Nonlinear Boussinesq and Rosseland approximations on 3D flow in an interruption of Ternary nanoparticles with various shapes of densities and conductivity properties

Kiran Sajjan et al.

Summary: Hybrid models have become increasingly important in various systems, and this study explores the influence of linear, nonlinear, and quadratic Rosseland approximations on 3D flow behavior, as well as the inclusion of different shaped and dense ternary hybrid nanoparticles. The research findings show that different mixture compositions and thermal radiation situations have significant effects on the flow characteristics.

AIMS MATHEMATICS (2022)

Article Mathematics, Interdisciplinary Applications

Numerical Study on Mixed Convection Flow and Energy Transfer in an Inclined Channel Cavity: Effect of Baffle Size

Sivanandam Sivasankaran et al.

Summary: The objective of this numerical study is to explore the combined natural and forced convection and energy transport in a channel with an open cavity. The findings reveal that recirculating eddies beside the baffle become weak or disappear upon increasing the inclination angle of the channel/cavity, and the average thermal energy transportation reduces steadily until Ri = 1 and then increases for all inclination angles and lengths of the baffle.

MATHEMATICAL AND COMPUTATIONAL APPLICATIONS (2022)

Article Thermodynamics

Flow characterization of a pulsating heat pipe through the wavelet analysis of pressure signals

Roberta Perna et al.

APPLIED THERMAL ENGINEERING (2020)

Article Engineering, Mechanical

NUMERICAL STUDY OF DOUBLE DIFFUSIVE MIXED CONVECTION IN HORIZONTAL CHANNEL WITH COMPOSITE OPEN POROUS CAVITY

Ali Q. Abd Al-Hassan et al.

SPECIAL TOPICS & REVIEWS IN POROUS MEDIA-AN INTERNATIONAL JOURNAL (2019)

Article Chemistry, Physical

Shape effect of cavity flameholder on mixing zone of hydrogen jet at supersonic flow

Rasoul Moradi et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2018)

Article Thermodynamics

Mixed convection characteristics in rectangular enclosure containing heated elliptical block: Effect of direction of moving wall

Krunal M. Gangawane et al.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2018)

Article Engineering, Civil

Non-Gaussian non-stationary wind pressure forecasting based on the improved empirical wavelet transform

Zhou Li et al.

JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS (2018)

Article Thermodynamics

Mixed convection heat transfer from surface-mounted block heat sources in a horizontal channel with nanofluids

Mohammad Hemmat Esfe et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2015)

Article Automation & Control Systems

Numerical modeling of MHD stability in a cylindrical configuration

Fateh Mebarek-oudina et al.

JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS (2014)