Results 31 to 40 of about 21,976 (201)

New Nusselt Number Correlation and Turbulent Prandtl Number Model for Turbulent Convection with Liquid Metal Based on Quasi-DNS Results

Energies
Liquid metal is widely used as the primary coolant in many advanced nuclear energy systems. Prandtl number of liquid metal is much lower than that of the conventional coolant of water or gas. Based on the Reynolds analogy, the turbulent Prandtl number is
Hao Fu, Juan Chen, Yanjun Tong, Sifan Peng, Fang Liu, Xuefeng Lyu, Houjian Zhao   +6 more
doaj   +1 more source

Vier Abhandlungen zur Hydrodynamik und Aerodynamik

, 2010
Mit der Berufung Ludwig Prandtls als Professor für Angewandte Mechanik wurde die kleine Universitätsstadt Göttingen im Jahr 1904 zur Wiege der modernen Strömungsmechanik und Aerodynamik.
Ludwig Prandtl, Albert Betz, Betz, Albert, Prandtl, Ludwig   +3 more
core   +1 more source

Study on the turbulent Prandtl number model for liquid metal flow and heat transfer in a narrow rectangular channel

Frontiers in Energy Research
In order to improve the core power density of liquid metal reactors, plate-type fuel assemblies are typically used, which have obvious advantages in heat transfer capacity.
Zhang Xue, Yu Hongxing, Deng Jian, Du Sijia, Wang Xiaoyu, Feng Wenpei   +5 more
doaj   +1 more source

Linear Stability of a Combined Convective Flow in an Annulus

Fluids, 2023
Linear stability analysis of a combined convective flow in an annulus is performed in the paper. The base flow is generated by two factors: (a) different constant wall temperatures and (b) heat release as a result of a chemical reaction that takes place ...
Armands Gritsans, Valentina Koliskina, Andrei Kolyshkin, Felix Sadyrbaev   +3 more
doaj   +1 more source

Benchmarking Data‐Driven Control of Octopus‐Inspired Soft Arms in Underwater Environment

Advanced Intelligent Systems, EarlyView.
Underwater soft robots present safe, compliant interaction, yet reproducible control remains scarce. This work presents an open benchmark for octopus‐inspired arms: a smooth, velocity‐diverse data‐collection scheme produces a compact dataset to train a vanilla policy.
Muhammad Sunny Nazeer, Yasmin Tauqeer Ansari, Emanuele Solfiti, Baljinder Singh Bal, Matteo Lo Preti, Barbara Mazzolai, Cecilia Laschi   +6 more
wiley   +1 more source

Radiative Hybrid Nanofluid Flow Over a Porous Riga Surface: A Fuzzy–ANN Modeling Approach

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a fuzzy–ANN model to investigate the nonlinear thermal transport in a tangent hyperbolic (Tanh) hybrid nanofluid flow past a porous Riga surface, considering the effects of Rosseland diffusion, chemical reactions, and internal volumetric heating.
Azad Hussain, Rabia Zetoon, Reeha Iqbal
wiley   +1 more source

Numerical modeling of thermophoresis and Brownian with heat transfer in shear-rate-dependent fluid: The finite element simulations

Case Studies in Thermal Engineering
This article discusses the simultaneous influence of thermophoresis, Brownian motion, and the dispersion of nanoparticles on thermal enhancement in non-Newtonian fluid existing over a surface stretching with non-uniform velocity.
M. Nawaz, Basit Ali, SayerObaid Alharbi, A.S. Shflot, M.Y. Malik, Abdelatif Salmi   +5 more
doaj   +1 more source

Numerical simulation of prandtl number effect on entropy generation in a square cavity

Journal of Thermal Engineering, 2021
In this study, entropy generation in laminar mixed convection in a square fluid filled cavity is numerically studied. The middle of the lower wall of the cavity is heated to a constant temperature Th while the side walls are maintained at a constant ...
Nawal FERROUDJ, Hasan KÖTEN
doaj   +1 more source

Numerical Study of MHD Hybrid Nanofluid Flow With Multiple Slip Effects Over a Variable Porous Stretching Surface

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This work discusses the thermal performance of magnetized hybrid nanofluid flow over a variable porous stretchable surface, emphasizing the underlying physical mechanisms governing heat and mass transfer. The Cattaneo–Christov flux model is used in place of Fourier's and Fick's laws to incorporate relaxation effects, ensuring a more realistic ...
Mounirah Areshi, Abdul Bariq, Salemah A. Almutlak, Fahad Maqbul Alamrani, Zehba Raizah, Anwar Saeed   +5 more
wiley   +1 more source

Prandtl-Blasius temperature and velocity boundary-layer profiles in turbulent Rayleigh-Bénard convection [PDF]

, 2010
The shapes of the velocity and temperature profiles near the horizontal conducting plates' centre regions in turbulent Rayleigh–Bénard convection are studied numerically and experimentally over the Rayleigh number range 108 ≲ Ra ≲ 3 × 1011 and the ...
Zhou, Quan, Stevens, Richard Johannes Antonius Maria, DETLEF LOHSE, QUAN ZHOU, Sugiyama, K., SIEGFRIED GROSSMANN, Stevens, Richard Johannes Antonius Maria; id_orcid, Lohse, Detlef, RICHARD J. A. M. STEVENS, KAZUYASU SUGIYAMA, Grossmann, Siegfried, Xia, K., KE-QING XIA   +12 more
core   +2 more sources