Results 31 to 40 of about 102,404 (168)
Investigation on Regime of Vertical Downward Submerged Steam-Direct Contact Condensation
Yuanzineng kexue jishu, 2022 Direct contact condensation affects the performance of pressure suppression system of nuclear reactor. Since the heat and mass transfer varies with the condensation regimes as well as steam-water interface shapes, the identification and classification of
LIU Haiqiang;GUO Zhangpeng;QIU Meiming;WANG Shengfei;NIU Fenglei;HUANG Yanping
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Estimates of gradient Richardson numbers from vertically smoothed data in the Gulf Stream region
Scientia Marina, 2004 We use several hydrographic and velocity sections crossing the Gulf Stream to examine how the gradient Richardson number, Ri, is modified due to both vertical smoothing of the hydrographic and/or velocity fields and the assumption of parallel or ...
Paul van Gastel, Josep L. Pelegrí
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Vertical Shear, Diapycnal Shear and the Gradient Richardson Number
OceansIn Cartesian coordinates x,y,z, the gradient Richardson number Ri is the ratio between the square of the buoyancy frequency N and the square of the vertical shear S, Ri=N2/S2, where N2=−g/ρ ∂ρ/∂z and S2=∂u/∂z2+∂v/∂z2, with ρ potential density, u,v the ...
Josep L. Pelegrí +2 more
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Mixed convection flow and heat transfer in a double lid- driven cavity containing a heated square block in the center [PDF]
MATEC Web of Conferences, 2020 In the present work, laminar mixed convection of a Newtonian fluid around a hot obstacle in a square cavity with moving vertical walls is studied numerically. The objective of this study is to analyze the effect of the Richardson number (0 ≼ Ri ≼ 10) and
Ouahouah Asma +4 more
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Numerical investigation of laminar mixed convection in a square cross-sectioned cylindrical annular
Journal of Thermal Engineering, 2020 Steady-state laminar mixed convection of Newtonian fluids in a square cross-sectioned cylindrical annular enclosure with rotating inner wall and heated top cover has been numerically analysed based on axisymmetric incompressible flow simulations ...
Osman TURAN
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Comparison of GEOS-5 AGCM planetary boundary layer depths computed with various definitions [PDF]
Atmospheric Chemistry and Physics, 2014 Accurate models of planetary boundary layer (PBL) processes are important for forecasting weather and climate. The present study compares seven methods of calculating PBL depth in the GEOS-5 atmospheric general circulation model (AGCM) over land.
E. L. McGrath-Spangler, A. Molod
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Alexandria Engineering Journal, 2022 In this study, laminar mixed convection of water/Ag nanofluid with volume fraction of nanoparticles φ = 0, 2, 4, and 6% and Grashof numbers Gr = 50,000, 150,000, 250,000 and 400,000 and Richardson numbers Ri = 0.1, 1, and 10 are simulated using finite ...
Haiying Zhang +8 more
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Scientific Reports, 2022 In this study, Galerkin Finite Element Method or GFEM is used for the modeling of mixed convection with the entropy generation in wavy lid-driven porous enclosure filled by the CNT-water nanofluid under the magnetic field. Two different cases of boundary
Hameed K. Hamzah +2 more
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Al-Khawarizmi Engineering Journal, 2014 Mixed convection heat transfer to air inside an enclosure is investigated experimentally. The bottom wall of the enclosure is maintained at higher temperature than that of the top wall which keeps in oscillation motion, whereas the left and right walls ...
Ayad S. Abdulla +2 more
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Moving Lids Direction Effects on MHD Mixed Convection in a Two-Sided Lid-Driven Enclosure Using Nanofluid [PDF]
Transport Phenomena in Nano and Micro Scales, 2013 Magnetohydrodynamic (MHD) mixed convection flow of Cu–water nanofluid inside a two-sided lid-driven square enclosure with adiabatic horizontal walls and differentially heated sidewalls has been investigated numerically.
J. Rahmannezhad, M. Kalteh
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