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Title: Heat transfer in dust structures in an RF discharge plasma

Abstract

Results are presented from experimental studies of heat transfer in liquid-like plasma-dust structures. The experiments were performed with aluminum oxide grains {approx}3-5 {mu}m in size in an RF discharge plasma. The heat capacity of the dust grains in plasma is measured. The thermal conductivity and thermal diffusivity of liquid-like plasma-dust structures are deduced under the assumption that the observed temperature gradients and the propagation of a thermal perturbation in a dusty plasma are related to heat conduction within the dust component. The measured temperature dependences of the thermal conductivity and thermal diffusivity are in qualitative agreement with the results of numerical simulations performed in the model of a simple single-atom liquid. It is shown that quantitative discrepancy between the experimental and numerical results is related to the energy loss of dust grains in their collisions with the neutral particles of the ambient gas.

Authors:
; ; ; ; ;  [1]
  1. Russian Academy of Sciences, Institute for High Energy Densities (Russian Federation)
Publication Date:
OSTI Identifier:
21080620
Resource Type:
Journal Article
Journal Name:
Plasma Physics Reports
Additional Journal Information:
Journal Volume: 32; Journal Issue: 4; Other Information: DOI: 10.1134/S1063780X06040076; Copyright (c) 2006 Nauka/Interperiodica; Article Copyright (c) 2006 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-780X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALUMINIUM OXIDES; ATOMS; COLLISIONS; COMPUTERIZED SIMULATION; DISTURBANCES; DUSTS; ENERGY LOSSES; LIQUIDS; NEUTRAL PARTICLES; PERTURBATION THEORY; PLASMA; SPECIFIC HEAT; TEMPERATURE DEPENDENCE; TEMPERATURE GRADIENTS; THERMAL CONDUCTION; THERMAL CONDUCTIVITY; THERMAL DIFFUSIVITY

Citation Formats

Fortov, V E, Vaulina, O S, Petrov, O F, Shakhova, I A, Gavrikov, A V, and Khrustalev, Yu V. Heat transfer in dust structures in an RF discharge plasma. United States: N. p., 2006. Web. doi:10.1134/S1063780X06040076.
Fortov, V E, Vaulina, O S, Petrov, O F, Shakhova, I A, Gavrikov, A V, & Khrustalev, Yu V. Heat transfer in dust structures in an RF discharge plasma. United States. https://doi.org/10.1134/S1063780X06040076
Fortov, V E, Vaulina, O S, Petrov, O F, Shakhova, I A, Gavrikov, A V, and Khrustalev, Yu V. 2006. "Heat transfer in dust structures in an RF discharge plasma". United States. https://doi.org/10.1134/S1063780X06040076.
@article{osti_21080620,
title = {Heat transfer in dust structures in an RF discharge plasma},
author = {Fortov, V E and Vaulina, O S and Petrov, O F and Shakhova, I A and Gavrikov, A V and Khrustalev, Yu V},
abstractNote = {Results are presented from experimental studies of heat transfer in liquid-like plasma-dust structures. The experiments were performed with aluminum oxide grains {approx}3-5 {mu}m in size in an RF discharge plasma. The heat capacity of the dust grains in plasma is measured. The thermal conductivity and thermal diffusivity of liquid-like plasma-dust structures are deduced under the assumption that the observed temperature gradients and the propagation of a thermal perturbation in a dusty plasma are related to heat conduction within the dust component. The measured temperature dependences of the thermal conductivity and thermal diffusivity are in qualitative agreement with the results of numerical simulations performed in the model of a simple single-atom liquid. It is shown that quantitative discrepancy between the experimental and numerical results is related to the energy loss of dust grains in their collisions with the neutral particles of the ambient gas.},
doi = {10.1134/S1063780X06040076},
url = {https://www.osti.gov/biblio/21080620}, journal = {Plasma Physics Reports},
issn = {1063-780X},
number = 4,
volume = 32,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}