Speaker
Ainur Issanova
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P1.1028.pdf
Computer simulation of dust dynamics for various materials of the edge
fusion plasma
A.K. Issanova1), N.Kh. Bastykova1), S.K. Kodanova1), T.S. Ramazanov1)
1
Institute of Experimental and Theoretical Physics, Al-Farabi Kazakh
National University, Al-Farabi 71, Almaty, 050040, Kazakhstan
The influences of dust formation from candidate materials and their lifetime are the
most important characteristics of the dust dynamics of the edge fusion plasma [1-4].
Descriptions of the evolution of dust formation from candidate materials and their lifetime
can play a significant role in the formation of edge dusty plasma. Therefore these results can
be useful for estimating the penetration length of dust particles made from different materials
moving in fusion devices.
In this work we consider the dynamics and lifetime of an individual dust particle
formed on the wall surface of fusion reactor. To describe the dynamics of the dust particle the
equations of motion, the equations of mass and energy balance, and the equations for charging
the dust particle are solved.
Calculations are made for dust particles consisting of different materials of Be, Ni, Mo
and W, which depend on the differences in material properties and thermochemical
properties. Dust particle charge and energy fluxes have been obtained depending on the dust
temperature. And also the temperature and radius of the dust particle are obtained, as a
function of time. On the basis of these calculations, estimates of the dust lifetime have been
obtained.
[1]. L. Vignitchouk, P. Tolias and S. Ratynskaia // Plasma Phys. Control. Fusion, 56, 095005 (2014)
[2]. Tanaka Y., Pigarov A.Yu., Smirnov R.D., Krasheninnikov S.I., Ohno N., Uesugi Y. Modeling of dust-
particle behavior for different materials in plasmas // Phys. Plasmas, 14, 052504 (2007)
[3]. S. K. Kodanova, N. Kh. Bastykova, T. S. Ramazanov, and S. A. Maiorov // IEEE Transactions on Plasma
Science, 4, 525-527 (2016)
[4]. S. K. Kodanova , N. Kh. Bastykova , T. S. Ramazanov, G. N. Nigmetova, and S. A. Maiorov // IEEE
Transactions on Plasma Science, 10.1109/TPS.2017.2763965 (2018)
