Results 51 to 60 of about 9,644,141 (271)
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
INVESTIGATION OF CONVECTION HEAT TRANSFER FOR HIGH INTEGRAL FINNED TUBE HEAT EXCHANGER [PDF]
Journal of Engineering and Sustainable Development, 2019 The numerical investigation has been performed in this work to evaluate the performance of a 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 ...
Muna Sabah Kassim, Hadeer Sattar Gaber
doaj +2 more sources
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
Energy Reports, 2021 The effects of viscous energy dissipation on the forced convection heat transfer between an unconfined rotating isothermal circular cylinder and surrounding viscous fluids are numerically investigated.
A.A. Soares, A. Rouboa
doaj
Hittite Journal of Science and Engineering, 2018 I n this study, the thermal performance of Al2 O3 , TiO2 and ZnO nanofluid in horizontal microchannels was investigated experimentally and numerically.
Beytullah Erdoğan +4 more
doaj +1 more source
Convectively driven shear and decreased heat flux [PDF]
J. Fluid Mech. 759, 360-385 (2014), 2014 We report on direct numerical simulations of two-dimensional, horizontally periodic Rayleigh-B\'enard convection, focusing on its ability to drive large-scale horizontal flow that is vertically sheared. For the Prandtl numbers ($Pr$) between 1 and 10 simulated here, this large-scale shear can be induced by raising the Rayleigh number ($Ra ...
arxiv +1 more source
Correlation of internal flow structure with heat transfer efficiency in turbulent Rayleigh-Bénard convection [PDF]
Physics of Fluids 2020, 32 (10), 105112, 2020 To understand how internal flow structures manifest themselves in the global heat transfer, we study the correlation between different flow modes and the instantaneous Nusselt number ($Nu$) in a two-dimensional square Rayleigh-B\'enard convection cell.
arxiv +1 more source
Micromachines, 2019 Laminar convective heat transfer of elliptical minichannels is investigated for hydrodynamically fully developed but thermal developing flow with no-slip condition.
Liangbin Su +4 more
doaj +1 more source
Asymptotic Nusselt numbers for internal flow in the Cassie state [PDF]
arXiv, 2022 We consider laminar, fully-developed, Poiseuille flows of liquid in the Cassie state through diabatic, parallel-plate microchannels symmetrically textured with isoflux ridges. Through the use of matched asymptotic expansions we analytically develop expressions for (apparent hydrodynamic) slip lengths and variously-defined Nusselt numbers.
arxiv