Results 71 to 80 of about 9,398,681 (287)

Optimization of Thermally Radiative and Mass Wavy Flow Analysis Affected by Induced Magnetic Field and Joule Heating

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT The role of magnetic induction is declared fundamental in many technological systems, including electric generators, inductors, transformers, and so on. This is an important source for converting energy from one form to another while utilizing electromagnetic induction. This phenomenon is efficient when the induced magnetic field is introduced
Ahmed M. Galal   +5 more
wiley   +1 more source

Numerical Study of Heat and Water Vapour Exchanges Inside a Green Roof Building in a High Irradiation Area for Passive Cooling Purpose

open access: yesTH Wildau Engineering and Natural Sciences Proceedings, 2021
Vegetation cover provides shading and protects the soil beneath them from warming.  Vegetation can be used as passive cooling technique that reduces the thermal load of a building. A numerical study has been carried out on laminar double-diffusive mixed
Hodo-Abalo Samah   +4 more
doaj   +1 more source

The effect on the Nusselt number of the non-linear axial temperature distribution of gas flows through commercial microtubes [PDF]

open access: yes, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
3rd Micro and Nano Flows Conference (MNF2011)   +4 more
core  

Dynamics of Bio‐Convection Two‐Phase Nanofluid Flow in an Entropy‐Optimized Non‐Newtonian Model With Nonlinear Thermal Radiation and Electromagnetic Effects

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT The study of nanofluids has attracted significant attention due to their superior thermophysical properties, making them ideal for thermal transport in engineering and biomedical applications. Motivated by these capabilities, this study develops a novel three‐dimensional mathematical model for electrically conducting Sutterby nanofluids ...
A. M. Obalalu   +4 more
wiley   +1 more source

Heat Transfer and Pressure Drop in a Developing Channel Flow with Streamwise Vortices [PDF]

open access: yes, 1996
Experiments to assess the heat transfer and pressure-drop effects of delta-wing vortex generators placed at the entrance of developing channel flows are reported in this study.
Felton, K.C., Jacobi, A.M.
core  

Scaling of heat flux and energy spectrum for "very large" Prandtl number convection

open access: yes, 2014
Under the limit of infinite Prandtl number, we derive analytical expressions for the large-scale quantities, e.g., P\'{e}clet number Pe, Nusselt number Nu, and rms value of the temperature fluctuations $\theta_\mathrm{rms}$.
Mishra, Pankaj K.   +2 more
core   +1 more source

Numerical Investigation of Turbulent Mixed Convection Between Coaxial Cylinders and the Inner Rotating Cylinder With Axial Flow

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT The turbulent flow between coaxial cylinders, particularly when the inner cylinder is rotating, exhibits complex hydrodynamic and heat transfer behaviors critical for various engineering applications. Although many previous studies have simplified these systems with idealized assumptions, real‐world scenarios involve mixed convection and ...
Tohid Adibi   +5 more
wiley   +1 more source

Secondary peak in the Nusselt number distribution of impinging jet flows: A phenomenological analysis

open access: yes, 2016
This paper focuses on a wall-resolved Large Eddy Simulation (LES) of an isothermal round submerged air jet impinging on a heated flat plate, at a Reynolds number of 23 000 (based on the nozzle diameter and the bulk velocity at the nozzle outlet) and for ...
P. Aillaud   +3 more
semanticscholar   +1 more source

What Exactly is the Nusselt Number in Convective Heat Transfer Problems and are There Alternatives?

open access: yesEntropy, 2016
The often used Nusselt number is critically questioned with respect to its physical meaning. Based on a rigorous dimensional analysis, alternative assessment numbers are found that in a systematic way separately account for the quantitative and ...
H. Herwig
semanticscholar   +1 more source

Thermal–Hydraulic Performance of Nanofluids in Turbulent Separated Flow Induced by Double Forward Facing Step With Converging/Diverging Wall

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
Compared to experimental data of thermophysical properties of NFs, semi‐empirical models cannot estimate FOM correctly. For all working fluids, applying a converging channel instead of the canonical case was inefficient. Diverging channel was always favored compared to the canonical case. For less effective NFs, both lowering the reference velocity and
Mahmoud Jourabian, Mehrdad Raeesi
wiley   +1 more source

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