Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Gerald J. LeBeau"'
Autor:
Forrest E. Lumpkin, Gerald J. LeBeau
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 191:595-609
The DSMC Analysis Code (DAC) software represents the National Aeronautics and Space Administration's (NASA's) state-of-the-art implementation of the Direct Simulation Monte Carlo (DSMC) method of Bird for simulating three-dimensional flows. It is uti
Publikováno v:
Journal of Spacecraft and Rockets. 37:39-48
The nozzle and plume ows of small cold-gas attitude control thrusters, plume interactions with spacecraft surfaces, and the induced pressure environment are investigated numerically. The motivation for this study originates from pressure measureme
Publikováno v:
Journal of Spacecraft and Rockets. 34:8-15
Acceleration data taken for the e rst time from the orbital acceleration research experiment during re-entry on Space Transportation System-62 have been analyzed using in situ calibration factors. The re-entry data include the e ight regime from orbi
Publikováno v:
AIP Conference Proceedings.
Plume impingement effects from the descent and ascent engine firings of the Lunar Lander were analyzed in support of the Lunar Architecture Team under the Constellation Program. The descent stage analysis was performed to obtain shear and pressure fo
Publikováno v:
AIP Conference Proceedings.
Plume impingement effects on the Orion Crew Service Module (CSM) were analyzed for various dual Reaction Control System (RCS) engine firings and various configurations of the solar arrays. The study was performed using a decoupled computational fluid
Publikováno v:
AIP Conference Proceedings.
Three‐dimensional Direct Simulation Monte Carlo simulations of Columbia Shuttle Orbiter flight STS‐107 are presented. The aim of this work is to determine the aerodynamic and heating behavior of the Orbiter during aerobraking maneuvers and to pro
Publikováno v:
37th AIAA Thermophysics Conference.
Three-dimensional Direct Simulation Monte Carlo simulations of Columbia Shuttle Orbiter flight STS-107 are presented. The aim of this work is to determine the aerodynamic and heating behavior of the Orbiter during aerobraking maneuvers and to provide
The Use of Virtual Sub-cells in DSMC Analysis of Orbiter Aerodynamics at High Altitudes Upon Reentry
Publikováno v:
41st Aerospace Sciences Meeting and Exhibit.
o reduce the cell size constraint of the method on the flowfield cells. While the benefits of virtual sub -cells have been demonstrated on an idealized two - dimensional problem, the goal of this work is to investigate their effectiveness on a challe
Publikováno v:
AIP Conference Proceedings.
This paper presents the results of a numerical study of shock interactions resulting from Mach 10 air flow about a sharp double cone. Computations are made with the direct simulation Monte Carlo (DSMC) method by using two different codes: the G2 code
Publikováno v:
38th Aerospace Sciences Meeting and Exhibit.