Results 31 to 40 of about 51,105 (282)

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  

Simulation based investigation of Nusselt number and Poiseuille number in helical microchannels

International Journal of Thermofluids
Simulation based work carried out in order to understand the thermohydraulic characteristics of fluid flow in helical microchannel, with circular cross-section, that is subjected to constant heat flux is detailed in this work.
Shamsa Al Ketbi, Amna Al Rashdi, Sabah Al Haddad, Salini Krishnan, Bobby Mathew   +4 more
doaj   +1 more source

"Ultimate state" of two-dimensional Rayleigh-Benard convection between free-slip fixed temperature boundaries

, 2011
Rigorous upper limits on the vertical heat transport in two dimensional Rayleigh-Benard convection between stress-free isothermal boundaries are derived from the Boussinesq approximation of the Navier-Stokes equations. The Nusselt number Nu is bounded in
Charles R. Doering, Jared P. Whitehead, L. Rayleigh   +2 more
core   +1 more source

Transition of thermally induced flow in a square cavity using Spectral Method [PDF]

E3S Web of Conferences
This 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, Hilali Youssef, Mesmoudi Said, Askour Omar, Bourihane Oussama   +4 more
doaj   +1 more source

Unsteady natural convection in a triangular enclosure under isothermal heating [PDF]

, 2011
The fluid flow and heat transfer inside a triangular enclosure due to instantaneous heating on the inclined walls are investigated using an improved scaling analysis and direct numerical simulations.
Saha, Suvash
core   +2 more sources

Thermally Developing Flow and Heat Transfer in Elliptical Minichannels with Constant Wall Temperature

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, Zhipeng Duan, Boshu He, Hao Ma, Zairan Xu   +4 more
doaj   +1 more source

Numerical investigation of nanofluid flow and heat transfer over a backward-facing step

Engineering and Applied Science Research, 2020
In this research, the forced convection heat transfer of a nanofluid in a channel with a backward- facing step is studied by adopting the finite volume technique. The effect of nanoparticles is considered by employing the single-phase model.
Pedram Pournaderi, Milad Aram
doaj   +1 more source

Effects of viscous dissipation and boundary conditions on forced convection in a channel occupied by a saturated porous medium [PDF]

, 2007
Forced convection with viscous dissipation in a parallel plate channel filled by a saturated porous medium is investigated numerically. Three different viscous dissipation models are examined.
A. Bejan, A. Haji-Sheikh, A. Haji-Sheikh, A.A. Ranjbar-Kani, A.K. Al-Hadhrami, A.K. Al-Hadhrami, A.V. Kuznetsov, C.T. Hsu, D.A. Nield, D.A. Nield, D.A. Nield, D.A. Nield, D.A. Nield, D.A. Nield, D.A. Nield, D.A. Nield, D.A. Nield, D.A. Nield, E. Magyari, H. Gurgenci, H.C. Brinkman, H.C. Brinkman, J.W. Ou, J.W. Ou, K. Hooman, K. Hooman, K. Hooman, K. Hooman, K. Hooman, K. Vafai, M. Kaviany, M. Kaviany, R.K. Shah, S. Kakaç, S. Whitaker, Y. Murakami   +35 more
core   +2 more sources

Nusselt Number Correlation for Vertical Tubes with Inverted Triangular Fins under Natural Convection

Energies, 2017
Vertical tubes with inverted triangular fins under natural convection are investigated experimentally. The thermal resistances of tubes with inverted triangular fins are measured for various fin numbers, fin heights, and heat inputs.
Byeong Dong Kang, Hyun Jung Kim, Dong-Kwon Kim   +2 more
doaj   +1 more source

Empirical study for Nusselt number optimization for the flow using ANOVA and Taguchi method

Case Studies in Thermal Engineering, 2023
ANOVA and Taguchi is an optimization tool used to find the optimal combination to achieve the highest heat transmission rate for a Casson-Carreau nanofluid flow over a curved surface.
B. Nagaraja, Felicita Almeida, Yousef Ali, Pradeep Kumar, A.R. Ajaykumar, Qasem Al-Mdallal   +5 more
doaj   +1 more source