Results 61 to 70 of about 10,485 (275)
Second-Order Moist Potential Vorticity in Terrain-Following Coordinate and its Application in Improving Numerical Precipitation Prediction [PDF]
Gaoyuan qixiangFor the general problem of rainstorm under complex terrain， the use of isobaric coordinates can not accurately analyze and predict the intensity and movement of mountain rainstorm due to the intersection of the lower troposphere isobaric surface and the ...
Cha YANG, Na LI, Yuntao HU, Lingkun RAN, Xingna ZHAO
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First considerations on the structure and development of the Iberian thermal low-pressure system [PDF]
Annales Geophysicae, 1994 During the summer a thermal low-pressure system is locked over the Iberian Peninsula. We present a first analysis of such a system using the potential vorticity approach.
S. Alonso, A. Portela, C. Ramis
doaj +1 more source
On the mass anomaly of potential vorticity vortices
Quarterly Journal of the Royal Meteorological Society, 2015 The mass anomaly associated with piecewise constant symmetric potential vorticity (PV) vortices in rotating and stratified fluids is investigated. It is found that the absolute value of this mass anomaly depends linearly on the distance to the vortex centre and is therefore unbounded.
openaire +2 more sources
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Accurately simulating multiphase flows at low capillary numbers remains challenging due to spurious currents and interface discretization errors. We present a systematic comparison of four volume‐of‐fluid (VOF) solvers within the OpenFOAM framework for pressure‐driven Poiseuille–Bingham flow over grooved surfaces: interFoam with classical ...
Amir Joulaei +2 more
wiley +1 more source
On calculating the potential vorticity flux [PDF]
Physics of Plasmas, 2015 We discuss and compare different approaches to calculating the dynamics of anisotropic flow structure formation in quasi two-dimensional turbulence based on potential vorticity (PV) transport in real space. The general structure of the PV flux in the relaxation processes is deduced non-perturbatively.
Pei-Chun Hsu, P. H. Diamond
openaire +3 more sources
Mixing Behavior of Natural Gas and Hydrogen in a High‐Efficiency Vane (HEV) Static Mixer
Energy Science &Engineering, EarlyView.Static mixers play a crucial role in the safe transport of hydrogen‐blended natural gas. Computational fluid dynamics (CFD) was employed to investigate the effects of structural parameters of the HEV static mixer on the mixing behavior and homogeneity of natural gas and hydrogen. The modeling approach was well validated against experimental data.
Xiang Zhou +5 more
wiley +1 more source
Effect of Prandtl's ration on balance in geophysical turbulence
, 2015 Support for this research has come from the UK Engineering and Physical Sciences Research Council (grant no. EP/H001794/1).The fluid dynamics of the atmosphere and oceans are to a large extent controlled by the slow evolution of a scalar field called ...
McKiver, William Joseph +1 more
core +1 more source
Potential vorticity and wind from ERA5 at several isentropic surfaces
, 2023 <p>This datasets collects winds (u and v components) and potential vorticity from ERA5 at four isentropic surfaces: 475, 600, 700 and 800 K. Data are available daily and monthly. Potential vorticity and modified potential vorticity are stored.
Arosio, Carlo
core +1 more source
International Journal for Numerical Methods in Fluids, EarlyView.A three‐dimensional fluid‐structure interaction (FSI) framework is developed using the geometric volume‐of‐fluid (VOF) interface capturing method and applied to assess largescale turbulent FSI interactions. The monolithic FSI framework is extensively validated, and despite the discontinuities across the interface, the FSI framework delivers stable and ...
Soham Prajapati +2 more
wiley +1 more source
Analytical solutions of the potential vorticity invertibility principle
Journal of Advances in Modeling Earth Systems, 2013 We define the f‐plane, y‐independent, potential vorticity (PV) invertibility principle as a coupled pair of first‐order partial differential equations relating the balanced wind and mass fields to the known PV.
Matthew T. Masarik, Wayne H. Schubert
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