Results 111 to 120 of about 8,612,345 (201)
Ludwig Prandtl - ein Lebensbild; Erinnerungen, Dokumente
, 2005 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.
Vogel-Prandtl, Johanna
core
, 1993 It is shown that turbulent Prandtl numbers for turbulent boundary layer and jet flows correlate well if compared on the basis of eddy diffusivity. Experimental data for liquid sodium (Pr= 0.0058) lead to a universal expression relating turbulent Prandtl ...
Bremhorst, K., Krebs, L.
core +1 more source
steel research international, Volume 97, Issue 9, Page 4976-4995, September 2026.Fixed‐bed reactor experiments (10 L) validate the iron–steam redox process, bridging material‐scale research and industrial power‐to‐power applications. Coupled with SOEC/SOFC systems, this framework defines critical interfaces for heat and gas management. Results confirm reproducible hydrogen storage and release, demonstrating technical feasibility at
Julien Göthel +2 more
wiley +1 more source
Near wall Prandtl number effects on velocity gradient invariants and flow topologies in turbulent Rayleigh-Bénard convection. [PDF]
Sci Rep, 2020 Yigit S +3 more
europepmc +1 more source
Bound on vertical heat transport at large Prandtl number
, 2007 We prove a new upper bound on the vertical heat transport in Rayleigh-Bénard con-vection at large (but finite) Prandtl number that agrees with the (optimal) Ra 1 3 bound (modulo logarithmic correction) on vertical heat transport for the infinite Prandtl ...
Xiaoming Wang, Wang, Xiaoming
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Lateral Momentum Transfer in Ice‐Covered Rivers
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 9, September 2026.Abstract Ice cover alters river hydrodynamics by introducing surface roughness. This roughness modifies momentum redistribution and bed shear stress. Using theoretical arguments, we present an approach for the lateral momentum load in ice‐covered streams.
Javad Souri +3 more
wiley +1 more source
Effect of Prandtl Number on Mixed Convective Heat Transfer from a Porous Cylinder in the Steady Flow Regime. [PDF]
Entropy (Basel), 2020 Yu S, Tang T, Li J, Yu P.
europepmc +1 more source
Infinite Prandtl number limit of Rayleigh‐Bénard convection
, 2004 We rigorously justify the infinite Prandtl number model of convection as the limit of the Boussinesq approximation to the Rayleigh-Bénard convection as the Prandtl number approaches infinity. This is a singular limit problem involving an initial layer. ©
Xiaoming Wang, Wang, Xiaoming
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A Model Intercomparison Study of Mixed‐Phase Clouds in a Laboratory Chamber
Journal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.Abstract Supercooled liquid water often persists in mixed‐phase clouds for hours to days, even though a simple, well‐mixed Wegener‐Bergeron‐Findeisen model predicts rapid depletion of liquid water in the presence of ice. The persistence is well documented, but the relative importance of the maintaining mechanisms remains uncertain.
Aaron Wang +14 more
wiley +1 more source
NORi: An ML‐Augmented Ocean Boundary Layer Parameterization
Journal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.Abstract NORi is a machine learning (ML) parameterization of ocean boundary layer (BL) turbulence that is physics‐based and augmented with neural networks. NORi stands for neural ordinary differential equations Richardson number (Ri) closure. The physical parameterization is controlled by a Richardson number‐dependent diffusivity and viscosity.
Xin Kai Lee +6 more
wiley +1 more source