TY - JOUR
T1 - A study of plasma parameters in a capillary discharge with calculations using ideal and nonideal plasma models for comparison with experiment
AU - Winfrey, A. Leigh
AU - Abd Al-Halim, Mohamed A.
AU - Gilligan, John G.
AU - Saveliev, Alexei V.
AU - Bourham, Mohamed A.
N1 - Funding Information:
Manuscript received January 7, 2011; revised March 28, 2011, May 18, 2011, and September 14, 2011; accepted November 21, 2011. Date of publication January 16, 2012; date of current version March 9, 2012. This work was supported by the Department of Mechanical and Aerospace Engineering and the Department of Nuclear Engineering, North Carolina State University. A. L. Winfrey is with the Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0238 USA (e-mail: [email protected]). M. A. Abd Al-Halim is with the Department of Physics, Benha University, Benha 13518, Egypt. J. G. Gilligan and M. A. Bourham are with the Department of Nuclear Engineering, North Carolina State University, Raleigh, NC 27695-7909 USA. A. V. Saveliev is with the Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695-7910 USA. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TPS.2011.2179985
PY - 2012/3
Y1 - 2012/3
N2 - A study of the plasma parameters in a capillary discharge was conducted using an experimental electrothermal plasma facility. The experimental results are compared to calculations using ideal and nonideal formulas of the Coulomb logarithm in the plasma electrical conductivity model to determine the nature of the plasma regime. Calculations are compared to the measured ablated mass, the measured electrical conductivity. Other calculated parameters are compared to results from similar and typical discharges. The measured ablated mass falls in between the ideal and nonideal calculations suggesting that the plasma is neither ideal nor nonideal; however, the linear fit of the experimental and calculated values shows divergence in the ideal calculations at higher peak currents. Measured plasma electrical conductivity is close to the ideal model predictions at lower values of the peak discharge current and approaches the nonideal model predictions at higher peak currents; the shape of the measured conductivity follows that of the nonideal model.
AB - A study of the plasma parameters in a capillary discharge was conducted using an experimental electrothermal plasma facility. The experimental results are compared to calculations using ideal and nonideal formulas of the Coulomb logarithm in the plasma electrical conductivity model to determine the nature of the plasma regime. Calculations are compared to the measured ablated mass, the measured electrical conductivity. Other calculated parameters are compared to results from similar and typical discharges. The measured ablated mass falls in between the ideal and nonideal calculations suggesting that the plasma is neither ideal nor nonideal; however, the linear fit of the experimental and calculated values shows divergence in the ideal calculations at higher peak currents. Measured plasma electrical conductivity is close to the ideal model predictions at lower values of the peak discharge current and approaches the nonideal model predictions at higher peak currents; the shape of the measured conductivity follows that of the nonideal model.
UR - https://www.scopus.com/pages/publications/84858449317
UR - https://www.scopus.com/pages/publications/84858449317#tab=citedBy
U2 - 10.1109/TPS.2011.2179985
DO - 10.1109/TPS.2011.2179985
M3 - Article
AN - SCOPUS:84858449317
SN - 0093-3813
VL - 40
SP - 843
EP - 852
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
IS - 3 PART 2
M1 - 6132467
ER -