Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Leonard D Cassady"'
Publikováno v:
26th AIAA Aerodynamic Decelerator Systems Technology Conference.
Autor:
Jared Daum, Leonard D. Cassady
Publikováno v:
AIAA Aviation 2019 Forum.
Any cluster of parachute systems is subject to effects on performance due to interactions between the parachutes. One such interaction is the twisting of a riser from one parachute around that of another. Due to friction and relative motion between t
Autor:
Benjamin W. Longmier, Jared P. Squire, Maxwell G. Ballenger, Edgar A. Bering, Mark D. Carter, Franklin R. Chang Díaz, Andrew V. Ilin, Greg McCaskill, Tim W. Glover, Chris S. Olsen, Leonard D. Cassady
Publikováno v:
Journal of Propulsion and Power. 30:123-132
Testing of the Variable Specific Impulse Magnetoplasma Rocket VX-200 engine was performed over a wide throttle range in a 150 m3 vacuum chamber with sufficient pumping to permit exhaust plume measurements at argon background pressures less than 1×10
Autor:
Edgar A. Bering, Benjamin W. Longmier, Jared P. Squire, Leonard D. Cassady, Franklin Chang-Diaz, Tim W. Glover, Maxwell G. Ballenger, Chris S. Olsen, Mark Carter, A. V. Ilin, Greg McCaskill
Publikováno v:
Journal of Propulsion and Power. 27:915-920
H IGH-POWER electric propulsion thrusters can reduce propellant mass for heavy-payload orbit-raising missions and cargo missions to the moon and near-Earth asteroids, and they can reduce the trip time of robotic and piloted planetary missions [1–4]
Autor:
David J. Browne, Leonard D. Cassady, Daniel F. Berisford, Franklin R. Chang Díaz, Kenneth T. Stanton, Roger D. Bengtson, James M. Mulcahy
Publikováno v:
International Journal of Heat and Mass Transfer. 52:2343-2357
A solution of the inverse heat conduction problem (IHCP) by the steepest descent method is carried out in order to determine the waste heat flux from a helicon plasma discharge using transient surface temperature measurements obtained from infrared t
Autor:
Benjamin W. Longmier, Jared P. Squire, J. P. Sheehan, Edgar A. Bering, Franklin R. Chang Díaz, Leonard D. Cassady, Mark Carter, Maxwell G. Ballenger, Tim W. Glover, Chris S. Olsen, Andrew V. Hin
Publikováno v:
2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS).
A mechanism for ambipolar ion acceleration in a magnetic nozzle is proposed. The plasma is adiabatic in the diverging section of a magnetic nozzle so any energy lost by the electrons must be transferred to the ions via the electric field. Fluid theor
Publikováno v:
AIAA Aerodynamic Decelerator Systems (ADS) Conference.
The aerodynamics, both static and dynamic, of a test vehicle are critical to determining the performance of the parachute cluster in a drop test and for conducting a successful test. The Capsule Parachute Assembly System (CPAS) project is conducting
Autor:
John V. Shebalin, James P. McFadden, David M. Smith, Benjamin W. Longmier, Jared P. Squire, Spiro K. Antiochos, Edgar A. Bering, Barbara J. Thompson, Leonard D. Cassady, C. Richard DeVore, Mark Carter
Publikováno v:
51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition.
We describe a proposed laboratory-experiment research program that will answer the fundamental question: What is the role of reconnection in opening and closing the solar magnetic field? While attacking this question, we will also address the most im
Autor:
Mark D. Carter, Leonard D. Cassady, Edgar A. Bering, Franklin R. Chang Díaz, Benjamin W. Longmier, Jared P. Squire, Tim W. Glover, Chris S. Olsen, Maxwell G. Ballenger, Andrew V. Ilin, Greg McCaskill
Publikováno v:
48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
Testing of the VX-200 engine was performed over a wide throttle range in a vacuum facility with sufficient volume and pumping to permit exhaust plume measurements at low background pressures and sufficiently large charge exchange mean free paths. Exp
Autor:
Leonard D. Cassady, Franklin R. Chang Díaz, Edgar A. Bering, Benjamin W. Longmier, Jared P. Squire, Chris S. Olsen
Publikováno v:
AIAA SPACE 2011 Conference & Exposition.
®) VX-200 engine, a 200 kW flight-technology prototype. Results from high power Helicon only and Helicon with ICH experiments are presented from the VX-200 using argon propellant. Total VX-200 system efficiencies are presented from recent results wi