Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Xian-Zhu Tang"'
Autor:
Xian-Zhu Tang, Zehua Guo
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 1342-1347 (2017)
The plasma particle and power exhaust to the divertor surface drives both particle and power recycling at the surface, which in return constrains the plasma density and temperature at the target and their profile further upstream. Both particle and p
Externí odkaz:
https://doaj.org/article/dd4851050c9b42e9ad675e9d35c99983
Publikováno v:
SIAM Journal on Scientific Computing; 2024, Vol. 46 Issue 3, pA1821-A1849, 29p
Autor:
Yanzeng Zhang, Xian-Zhu Tang
For plasma velocity space instabilities driven by particle distributions significantly deviated from a Maxwellian, weak collisions can damp the instabilities by an amount that is significantly beyond the collisional rate itself. This is attributed to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0efab544af7bf7515df0aa9196556194
http://arxiv.org/abs/2211.02723
http://arxiv.org/abs/2211.02723
A large family of plasmas has collisional mean-free-path much longer than the non-neutral sheath width, which scales with the plasma Debye length. The plasmas, particularly the electrons, assume strong temperature anisotropy in the sheath. The temper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1153cbe5669c64bb01472159ea868d0f
http://arxiv.org/abs/2210.16711
http://arxiv.org/abs/2210.16711
Autor:
Christopher J. McDevitt, Xian-Zhu Tang, Christopher J. Fontes, Prashant Sharma, Hyun-Kyung Chung
In a post-thermal-quench plasma, mitigated or unmitigated, the plasma power balance is mostly between collisional or Ohmic heating and plasma radiative cooling. In a plasma of atomic mixture { n α } with α labeling the atomic species, the power bal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d1e169e730f0f72c1363cb39ec43bee
http://arxiv.org/abs/2210.10925
http://arxiv.org/abs/2210.10925
Publikováno v:
Nuclear Fusion. 63:066030
In tokamak disruptions where the magnetic connection length becomes comparable to or even shorter than the plasma mean-free-path, parallel transport can dominate the energy loss and the thermal quench of the core plasma goes through four phases (stag
Publikováno v:
SIAM Journal on Scientific Computing. 43:B1198-B1225
A parallel cut-cell algorithm is described to solve the free-boundary problem of the Grad-Shafranov equation. The algorithm reformulates the free-boundary problem in an irregular bounded domain and its important aspects include a searching algorithm
A large class of Laboratory, Space, and Astrophysical plasmas is nearly collisionless. When a localized energy or particle sink, for example, in the form of a radiative cooling spot or a black hole, is introduced into such a plasma, it can trigger a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e180bdad00b143d0d6f03c529070aa46
The plasma exit flow speed at the sheath entrance is constrained by the Bohm criterion. The so-called Bohm speed regulates the plasma particle and power exhaust fluxes to the wall, and it is commonly deployed as a boundary condition to exclude the sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24b39d768ebff68af65323263142caaf
Publikováno v:
Physics of Plasmas. 29:113509
The ion exit flow speed at the sheath entrance is constrained by the Bohm criterion, which is used as a boundary condition for simulations that do not resolve the sheath region. Traditional Bohm criterion analysis invokes the equation of state and, t