Results 11 to 20 of about 33,212 (255)

crash: a radiative transfer scheme [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2003
We present a largely improved version of CRASH, a 3-D radiative transfer code that treats the effects of ionizing radiation propagating through a given inhomogeneous H/He cosmological density field, on the physical conditions of the gas. The code, based on a Monte Carlo technique, self-consistently calculates the time evolution of gas temperature and ...
MASELLI A., FERRARA, ANDREA, CIARDI B.
openaire   +5 more sources

Spherical Harmonics for the 1D Radiative Transfer Equation. I. Reflected Light

open access: yesThe Astrophysical Journal, 2023
A significant challenge in radiative transfer theory for atmospheres of exoplanets and brown dwarfs is the derivation of computationally efficient methods that have adequate fidelity to more precise, numerically demanding solutions.
Caoimhe M. Rooney   +2 more
doaj   +1 more source

On the Integration of the Equation of Radiative Transfer. [PDF]

open access: yesThe Astrophysical Journal, 1938
The equation of the radiative transfer has been integrated by a generalization of Spitzer's method, which makes use of Bessel functions.
Swings, Polydore, Dor, L.
openaire   +3 more sources

Analysis of the Discrete Theory of Radiative Transfer in the Coupled “Ocean–Atmosphere” System: Current Status, Problems and Development Prospects

open access: yesJournal of Marine Science and Engineering, 2020
In this paper, we analyze the current state of the discrete theory of radiative transfer. One-dimensional, three-dimensional and stochastic radiative transfer models are considered.
Viktor P. Afanas’ev   +4 more
doaj   +1 more source

Three‐Dimensional Radiative Effects By Shallow Cumulus Clouds on Dynamic Heterogeneities Over a Vegetated Surface

open access: yesJournal of Advances in Modeling Earth Systems, 2020
One‐dimensional radiative transfer solvers are computationally much more efficient than full three‐dimensional radiative transfer solvers but do not account for the horizontal propagation of radiation and thus produce unrealistic surface irradiance ...
M. A. Veerman   +4 more
doaj   +1 more source

Thermal Performance of Convective-Radiative Transfer Longitudinal Moving Rod with Variable Thermal Conductivity [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2023
An analysis has been performed to study the problem of the thermal performance of a continuously moving convective-radiative rod with variable thermal conductivity.
Hossein Ali Hoshyar   +2 more
doaj   +1 more source

Neighboring Column Approximation—An Improved 3D Thermal Radiative Transfer Approximation for Non‐Rectangular Grids

open access: yesJournal of Advances in Modeling Earth Systems, 2020
We present a significantly improved version of the Neighboring Column Approximation (NCA 2.0), a fast 3D approximation for the calculation of thermal heating and cooling rates in cloudy atmospheres for large eddy simulation models.
Carolin Klinger, Bernhard Mayer
doaj   +1 more source

A Refined Four-Stream Radiative Transfer Model for Row-Planted Crops

open access: yesRemote Sensing, 2020
In modeling the canopy reflectance of row-planted crops, neglecting horizontal radiative transfer may lead to an inaccurate representation of vegetation energy balance and further cause uncertainty in the simulation of canopy reflectance at larger ...
Xu Ma, Tiejun Wang, Lei Lu
doaj   +1 more source

Analytical Solution of Problems about the Radiative and Radiative–Conductive Stationary Heat Transfer in a Medium with an Arbitrary Dependence of the Scattering and Absorption on Frequency Boundary Conditions

open access: yesEnergies, 2021
We defined a method for the analytical solution of problems on stationary radiative and radiative–conductive heat transfer in a medium with an arbitrary frequency dependence of absorption and scattering near its boundary.
Eugene Shamparov   +3 more
doaj   +1 more source

Radiative heat transfer exceeding the blackbody limit between macroscale planar surfaces separated by a nanosize vacuum gap

open access: yesNature Communications, 2016
Evanescent coupling between surfaces separated by a distance smaller than the thermal wavelength can lead to radiative heat transfer greater than the blackbody limit.
Michael P. Bernardi   +2 more
doaj   +1 more source

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