Results 61 to 70 of about 22,055 (226)
Nusselt number correlations for heat transfer analysis around a tube at subcritical Reynolds numbers
, 2021 Nusselt number around circular tube has been typically correlated by the power law: Nu= C Rem Prn. In the present study, a numerical technique of Matrix least-squares has been utilized to estimate coefficient and power indices of the typical power law ...
et. al., Apoorva Deep Roy,
core +1 more source
Entropy generation for MHD pulsating stratified liquid flow between two permeable beds
Nonlinear AnalysisIn natural systems such as lakes, reservoirs, and the upper ocean layers, temperature-induced stratified fluid flows are frequently observed. Numerous studies have explored key aspects of these flows, including stability, mixing, and thermal transport ...
Madhurya Vangalapudi, Suripeddi Srinivas
doaj +1 more source
Radial boundary layer structure and Nusselt number in Rayleigh–Bénard convection [PDF]
Journal of Fluid Mechanics, 2010 Results from direct numerical simulation (DNS) for three-dimensional Rayleigh–Bénard convection in a cylindrical cell of aspect ratio 1/2 and Prandtl number Pr=0.7 are presented. They span five decades of Rayleigh number Ra from 2 × 106 to 2 × 1011. The results are in good agreement with the experimental data of Niemela et al. (Nature, vol.
Stevens, R. J. A. M +2 more
openaire +6 more sources
Global and Detailed Calculation of Tube Wall Temperature in a Process Furnace Steam Superheater
Chemie Ingenieur Technik, EarlyView.This study presents a comparison between an iterative global model and multiple approaches to a new non‐iterative model with the purpose of predicting tube wall temperature of a superheater. The results show that the non‐iterative method achieves sufficient accuracy while improving the prediction of local temperature distribution and better ...
Anežka Michálková, Zdeněk Jegla
wiley +1 more source
Numerical study of heat transfer and flow structure over a microscale backstep
Alexandria Engineering Journal, 2021 This study presents a two and three-dimensional numerical simulations of a flow-through a sudden expansion and contraction microchannels. The finite element method was used to discretize the equations governing the physical model.
Hassnia Hajji +5 more
doaj +1 more source
Environmental Progress &Sustainable Energy, EarlyView.Abstract Brazed plate heat exchanger (BPHE) was analyzed using computational fluid dynamics (CFD) simulations by ANSYS Fluent to investigate the chevron‐patterned plates. The influence of geometric parameters, including corrugation pitch, depth, and angle was analyzed.
J. S. Huang, K. B. Then, X. W. Wang
wiley +1 more source
Influence of thermophoresis and Brownian motion on Nusselt number.
, 2017 Influence of thermophoresis and Brownian motion on Nusselt number.
Maria Nawaz (3611339) +4 more
core +1 more source
Hydro-thermal performance of fabric air duct (FAD): Experimental and CFD simulation assessments
Case Studies in Thermal Engineering, 2023 Nowadays, fabric air duct (FAD) systems are the most cost-effective, and aesthetically appealing way to evenly distribute heated or cooled air to large open interior spaces.
Mohamed Hekal +3 more
doaj +1 more source
Energy Science &Engineering, EarlyView.Three flat‐plate collectors with spiral and square coiled riser tubes were tested and it was found that the spiral type provides the best results with a thermal efficiency of 66.98% for a mass flow rate of 0.4 kg/min. Riser tube geometry is a key factor in optimizing flat‐plate collector output.
Sakhail Islam Biaz +4 more
wiley +1 more source
Analysis of the Nusselt number in pulsating pipe flow
International Journal of Heat and Mass Transfer, 1997 기계공학전공
GUO, ZHIXIONG +1 more
openaire +2 more sources