Radiative transfer in cylindrical threads with incident radiation
نویسندگان
چکیده
منابع مشابه
Radiative transfer in cylindrical threads with incident radiation - VII. Multi-thread models
Aims. Our aim is to improve on previous radiative transfer calculations in illuminated cylindrical threads to better understand the physical conditions in cool solar chromospheric and coronal structures commonly observed in hydrogen and helium lines. Methods. We solved the radiative transfer and statistical equilibrium equations in a two-dimensional cross-section of a cylindrical structure orie...
متن کاملComputational Study of Radiative and Convective Heat Transfer in a Cylindrical Combustion Chamber
In this paper, the effect of cold air on the fluid flow inside the cylindrical combustion chamber and its wall temperature distribution have been studied computationally, taking into account the effect of radiative heat transfer from hot gases. The results have been compared with the case that radiative heat transfer was neglected. It is observed that the reattachment length increases when incr...
متن کاملA 3D radiative transfer framework: IV. spherical & cylindrical coordinate systems
Aims. We extend our framework for 3D radiative transfer calculations with a non-local operator splitting methods along (full) characteristics to spherical and cylindrical coordinate systems. These coordinate systems are better suited to a number of physical problems than Cartesian coordinates. Methods. The scattering problem for line transfer is solved via means of an operator splitting (OS) te...
متن کاملTriangulating Radiation: Radiative Transfer on Unstructured Grids
We present a new numerical approach that is able to solve the multi-dimensional radiative transfer equations in all opacity regimes on a Lagrangian, unstructured network of characteristics based on a stochastic point process. Our method reverses the limiting procedure used to derive the transfer equations, by going back to the original Markov process. Thus, we reduce this highly complex system ...
متن کاملDiscrete Ordinates Method for Transient Radiation Transfer in Cylindrical Enclosures
The Discrete Ordinates Method (DOM) for solving transient radiation transfer equation in cylindrical coordinates is developed for radiation heat transfer in participating turbid media in pico-scale time domain. The application problems addressed here are laser tissue welding and soldering. The novelty of this study lies with the use of ultrashort laser pulses as the irradiation source. The char...
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: Astronomy & Astrophysics
سال: 2007
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20066636