Katabatic Flow: Analytic Solution for Gradually Varying Eddy Diffusivities
نویسندگان
چکیده
منابع مشابه
An Analytic Flow Solution for YSO Jets
We present an analytic solution for a jet flow from a young stellar object (YSO). This solution allows us to compute the speed, density, and magnetic field strength of the flow, but it is only true if YSO jet flows are powered by toroidal magnetic fields. We illustrate how the balance between centrifugal force and magnetic pressure provides the converging/diverging nozzle shape required to acce...
متن کاملA new gauge-invariant method for diagnosing eddy diffusivities
Coarse resolution numerical ocean models must typically include a parameterisation for mesoscale turbulence. A common recipe for such parameterisations is to invoke mixing of some tracer quantity, such as potential vorticity or buoyancy. However, it is well known that eddy fluxes include large rotational components which necessarily do not lead to any mixing; eddy diffusivities diagnosed from u...
متن کاملAnalytic Solution for Hypersonic Flow Past a Slender Elliptic Cone Using Second-Order Perturbation Approximations
An approximate analytical solution is obtained for hypersonic flow past a slender elliptic cone using second-order perturbation techniques in spherical coordinate systems. The analysis is based on perturbations of hypersonic flow past a circular cone aligned with the free stream, the perturbations stemming from the small cross-section eccentricity. By means of hypersonic approximations for the ...
متن کاملEddy diffusivities of inertial particles in random Gaussian flows
S. Boi,1,2 A. Mazzino,1,2,3 and P. Muratore-Ginanneschi4 1DICCA, University of Genova, Via Montallegro 1, 16145 Genova, Italy 2INFN, Genova Section, Via Dodecaneso 33, 16146 Genova, Italy 3CINFAI Consortium, Genova Section, Via Montallegro 1, 16146 Genova, Italy 4Department of Mathematics and Statistics, University of Helsinki, Gustaf Haellstroemin katu 2b, Helsinki, Finland (Received 8 Novembe...
متن کاملEddy diffusivities estimated from observations in the Labrador Sea
[1] Eddy diffusivities in the Labrador Sea (LS) are estimated from deep eddy resolving float trajectories, moored current meter records, and satellite altimetry. A mean residence time of 248 days in the central LS is observed with several floats staying for more than 2 years. By applying a simple random walk diffusion model, the observed distribution of float residence times in the central LS c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Atmospheric Sciences
سال: 2001
ISSN: 0022-4928,1520-0469
DOI: 10.1175/1520-0469(2001)058<3349:kfasfg>2.0.co;2