On the Thermofluidics of a Steady Laminar Jet Impacting on a Rotating Hot Plate: An ab-initio Scaling Perspective [PDF]
, 2021 We provide an ab-initio scaling analysis for liquid film thickness and Nusselt number of a steady laminar jet impacting a rotating heated plate. The limiting scaling regimes incorporating the evaporative effects along the liquid-vapor interface have been probed. The dependence of liquid film thickness and Nusselt number on Reynolds, Rossby, and Prandtl
arxiv +1 more source
Asymptotic Nusselt numbers for internal flow in the Cassie state
Journal of Fluid Mechanics, 2023 We consider laminar, fully developed, Poiseuille flows of liquid in the Cassie state through diabatic, parallel-plate microchannels symmetrically textured with isoflux ridges. Via matched asymptotic expansions, we develop expressions for (apparent hydrodynamic) slip lengths and Nusselt numbers. Our small parameter ( $\epsilon$
Marc Hodes +3 more
openaire +2 more sources
INVESTIGATION OF CONVECTION HEAT TRANSFER FOR HIGH INTEGRAL FINNED TUBE HEAT EXCHANGER [PDF]
Journal of Engineering and Sustainable Development, 2019 Numerical investigation has been performed in this work to evaluate the performance for triangular finned tube heat exchanger. In numerical work, the effect of space (2.5, 3 and 3.5 mm) distance between every two finned shaped and the volumetric flow ...
Muna Sabah Kassim, Hadeer Sattar Gaber
doaj +3 more sources
Analysis of Dual Heat Sources in a Partially Open Enclosure
Advances in Mechanical Engineering, 2013 In this study a partially open enclosure with two heat sources is examined to determine the Nusselt number along the hot wall. The first part of the study examines the effect of the Rayleigh number ratio on the Nusselt number. The largest Rayleigh number
M. McGarry, James G. Kohl
doaj +1 more source
Nusselt Number and Convection Heat Transfer Coefficient for a Coaxial Heat Exchanger Using Al2O3-Water pH=5 Nanofluid [PDF]
Bulletin of the Polytechnic Institute of Jassy: Constructions, Architechture Section, 2009 Recently, a new class of fluid made up of metal nano-particles in suspension in a liquid, called nanofluid, appeared. Some numerical studies have shown that these new fluids have a higher heat transfer performance, compared with the conventional liquids.
Răzvan-Silviu Luciu +3 more
doaj
Case Studies in Thermal Engineering, 2021 Localized heating of hydrophobic droplet is considered and the effects of restricted area heating and droplet size on heat transfer are examined. Samples composing of vertical steel pins located in Perspex holders are designed and manufactured.
Abdullah Al-Sharafi +3 more
doaj
Transition of thermally induced flow in a square cavity using Spectral Method [PDF]
E3S Web of ConferencesThis study presents a novel mesh-free method for simulating natural convection in a square cavity filled with Newtonian fluid. The proposed algorithm integrates mesh-free Spectral methods with the Moving Collocation Element (MCOE) technique and employs a
Laasl Boutayna +4 more
doaj +1 more source
Optimization of Nusselt Number of Al2O3/Water Nanofluid Using Response Surface Methodology [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2019 This study has primarily aimed at the examination of the effect of flow rate, solid volume fraction and their interactions on the Nusselt number of Al2O3/water nanofluids.
Kazem Motahari, Sara Barati
doaj
A study of flow interference and heat transfer between two-cylinders at different orientations
Journal of Ocean Engineering and Science, 2021 A numerical investigation is carried out for the different orientations of a circular cylinder where the upstream cylinder moves with varying angles α = 0˚, 30˚, 45˚, 60˚, 90˚ with respect to the downstream cylinder in a fixed position at a gap ratio (L ...
Shardul Vikram Singh +2 more
doaj
EXPERIMENTAL STUDY OF CENTRAL AND SIDE JET WITH AND WITHOUT CHEVRON NOZZLE EXIT ON GAS TURBINE LEADING EDGE JET IMPINGEMENT COOLING [PDF]
, 2023 This thesis presents a comprehensive investigation into the application of jet impingement cooling on turbines blade leading edge. Gas turbines are extensively utilized in power generation and aerospace industries, where efficient cooling techniques are ...
Alqasrawi, Ahmad Yousef
core +1 more source