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2. LA-43-S-CT Post Shot

Author

Goforth, James H., primary, Armstrong, Christopher Lee, additional, Baca, Eva V., additional, Dickson, Peter, additional, Foley, Timothy J., additional, Gunderson, Jake Alfred, additional, Herrera, Dennis H., additional, Rae, Philip John, additional, Rousculp, Christopher L., additional, Watt, Robert Gregory, additional, and Haroz, Erik H., additional

Published
2019
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7. PHELIX Crenulation 2 and 3 Flash Report

Author

Rousculp, Christopher L., primary, Oro, David Michael, additional, Griego, Jeffrey Randall, additional, Patten, Austin Randall, additional, Neukirch, Levi Patrick, additional, Reinovsky, Robert Emil, additional, Turchi, Peter John, additional, Bradley, III, Joseph Thomas, additional, Reass, William Allen, additional, Fierro, Franklin, additional, Saunders, Alexander, additional, Mariam, Fesseha Gebre, additional, Freeman, Matthew Stouten, additional, Cheng, Baolian, additional, and Tang, Zhaowen, additional

Published
2017
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8. Pulsed-power hydrodynamics: an application of pulsed-power and high magnetic fields to the exploration of material properties and problems in experimental hydrodynamics

Author

Reinovsky, Robert E., Atchison, Walter L., Dimonte, Guy, Kaul, Ann M., Rodriguez, George, Rousculp, Christopher L., Reardon, Patrick T., and Turchi, Peter J.

Subjects
Magnetic fields -- Properties, Circuit design -- Models, Hydrodynamics -- Research, Radiography -- Methods, Plasma physics -- Research, Hydrofoil boats -- Hydrodynamics, Hydrofoil boats -- Research, Circuit designer, Integrated circuit design, Business, Chemistry, Electronics, Electronics and electrical industries
Abstract

Pulsed-power hydrodynamics (PPH) is an evolving application of low-impedance pulsed-power technology. PPH is particularly useful for the study of problems in advanced hydrodynamics, instabilities, turbulence, and material properties. PPH techniques provide a precisely characterized controllable environment at the currently achievable extremes of pressure and material velocity. The Atlas facility, which is designed and built by Los Alamos National Laboratory, is the world's first, and only, laboratory pulsed-power system designed specifically for this relatively new family of pulsed-power applications. Atlas joins a family of low-impedance high-current drivers around the world, which is advancing the field of PPH. The high-precision cylindrical magnetically imploded liner is the tool most frequently used to convert electromagnetic energy into the hydrodynamic (particle kinetic) energy needed to drive strong shocks, quasi-isentropic compression, or large-volume adiabatic compression for the experiments. At typical parameters, a 30-g 1-mm-thick liner with an initial radius of 5 cm and a moderate current of 20 MA can be accelerated to 7.5 km/s, producing megabar shocks in medium density targets. Velocities of up to 20 km/s and pressures of > 20 Mbar in high-density targets are possible. The first Arias liner implosion experiments were conducted in Los Alamos in September 2001. Sixteen experiments were conducted in the first year of operation before Arias was disassembled, moved to the Nevada Test Site (NTS), and recommissioned in 2005. The experimental program resumed at the NTS in July 2005. The first Atlas experiments at the NTS included two implosion dynamics experiments, two experiments exploring damage and material failure, a new advanced hydrodynamics series aimed at studying the behavior of particles of damaged material ejected from a free surface into a gas, and a series exploring friction at sliding interfaces under conditions of high normal pressure and high relative velocities. Longer term applications of PPH and the Atlas system include the study of material interfaces subjected to multimegagauss magnetic fields, material strength at high strain rate, the properties of strongly coupled plasmas, and the equation of state of materials at pressures approaching 10 Mbar. Index Terms--Capacitor banks, circuit model, damage, friction, high current, hydrodynamics, hydrodynamic simulation, liner implosion, material properties, pulsed-power, radiography, spall.

Published
2008

9. Crenulation-­1 Flash Report

Author

Rousculp, Christopher L., primary, Oro, David Michael, additional, Bradley, Joseph Thomas, additional, Griego, Jeffrey Randall, additional, Freeman, Matthew, additional, Reinovsky, Robert Emil, additional, Turchi, Peter John, additional, and Reass, William Allen, additional

Published
2016
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11. Cren(ulation)-­1,2 Preshot Report

Author

Rousculp, Christopher L., primary, Oro, David Michael, additional, Griego, Jeffrey Randall, additional, Bradley, Joseph Thomas, additional, Hollander, Brian J., additional, and Reinovsky, Robert Emil, additional

Published
2015
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13. Damaged Surface Hydrodynamics (DSH) Flash Report

Author

Rousculp, Christopher L., primary, Oro, David Michael, additional, Morris, Christopher, additional, Saunders, Alexander, additional, Reass, William, additional, Griego, Jeffrey Randall, additional, Turchi, Peter John, additional, and Reinovsky, Robert Emil, additional

Published
2015
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18. Science Campaign-1 Pulsed Power Efforts

Author

Rousculp, Christopher L., primary, Reass, William A., additional, Oro, David M., additional, Griego, Jeffrey R., additional, Turchi, Peter J., additional, Hollander, Brian J., additional, and Reinovsky, Robert E., additional

Published
2012
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19. Improvements in Ranchero Magnetic Flux Compression Generators

Author

Goforth, James H. Los Alamos National Laboratory, Baca, Eva V. Los Alamos National Laboratory, Briggs, Matthew E. Los Alamos National Laboratory, Cochran, Frederick L. Los Alamos National Laboratory, Gianakon, Thomas Arthur Los Alamos National Laboratory, Glover, Brian B. Los Alamos National Laboratory, Herrera, Dennis Harold Los Alamos National Laboratory, Johnson, Jarrett L. Los Alamos National Laboratory, Holmes, Richard L. Los Alamos National Laboratory, Martinez, Ernesto C. Los Alamos National Laboratory, Meyer, Ross Keith Los Alamos National Laboratory, Oona, Henn Los Alamos National Laboratory, Peterson, Darrell Lee Los Alamos National Laboratory, Rae, Philip John Los Alamos National Laboratory, Rousculp, Christopher L. Los Alamos National Laboratory, and Watt, Robert Gregory Los Alamos National Laboratory

Abstract

Not Provided

Published
2015

20. The PHELIX pulsed power project: bringing portable magnetic drive to world class radiography

Author

Rousculp, Christopher L. Los Alamos National Laboratory, Reass, William A. Los Alamos National Laboratory, Oro, David M. Los Alamos National Laboratory, Turchi, Peter J. Los Alamos National Laboratory, Hollander, Brian I. Los Alamos National Laboratory, Hollander, B. J., Griego, Jeffery R. Los Alamos National Laboratory, and Reinovsky, Robert E. Los Alamos National Laboratory

Abstract

Not Provided

Published
2013

23. Model experiments to adjust the elements of the pulsed power system for ALT-3 assembly

Author

Glybin, Alexey M., primary, Grinevich, Boris E., additional, Duday, Pavel V., additional, Dudin, Vladimir I., additional, Egorychev, Boris T., additional, Ivanov, Vitaly A., additional, Ivanovskiy, Andrey V., additional, Krayev, Andrey I., additional, Kudelkin, Valery B., additional, Mattsev, Yuriy I., additional, Skobelev, Alexander N., additional, Zimenkov, Alexey A., additional, Reinovsky, Robert E., additional, and Rousculp, Christopher L., additional

Published
2012
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25. Sensitivity of magnetohydrodynamic simulations of Joule-heated conductors to the vaporization curve in equations of state.

Author

Kreher SE, Rousculp CL, Bauer BS, Hutchinson TM, Klemmer AW, Starrett CE, and Yu EP

Abstract

Magnetohydrodynamic (MHD) simulations of electrically exploded aluminum and copper rods demonstrate a technique to validate equations of state (EOS) for rapidly Joule-heated conductors. The balance of internal and magnetic forces at the conductor-insulator interface drives the metal there along the vaporization phase boundary. Variations between critical points and vaporization curves in existing models predict differing densities and temperatures in MHD simulations for these models. The inclusion of Maxwell constructs in the liquid-vapor biphase region of the EOS caused the rod surface to vaporize earlier in time than unmodified tables with van der Waals loops. Velocimetry of recent experiments is used to validate the location of the vaporization curve in existing EOS models and differentiate between the vapor dome treatments. Dielectric coatings applied to the metal surface restricted the conductor's expansion and diverted the metal into the warm dense matter regime.

Published
2024
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