Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Lisa W. Griffin"'
Autor:
Jeffrey West, Peter Liever, Andrew Weaver, Thomas P. Shurtz, Manuel Gale, William C. Krolick, Lisa W. Griffin
Publikováno v:
AIAA SCITECH 2022 Forum.
Publikováno v:
Journal of Propulsion and Power. 20:486-491
The turbines used in rocket-engine applications are often partial-admission turbines, meaning that the flow enters the rotor over only a portion of the annulus. These turbines have been traditionally analyzed, however, assuming full-admission charact
Publikováno v:
Journal of Propulsion and Power. 18:1305-1308
Publikováno v:
Journal of Propulsion and Power. 18:509-518
There is growing interest to adopt supersonic turbines for rocket propulsion. However, this technology has not been actively investigated in the United States for the last three decades. To aid design improvement, a global optimization framework comb
Publikováno v:
Journal of Turbomachinery. 118:636-642
An experimental/analytical study has been conducted to determine the performance improvements achievable by circumferentially indexing succeeding rows of turbine stator airfoils. A series of tests was conducted to experimentally investigate stator wa
Autor:
Lisa W. Griffin, Daniel J. Dorney, Yolanda Mack, Raphael T. Haftka, Frank W. Huber, Lauren Mahorter Snellgrove, Wei Shyy
Publikováno v:
Hong Kong University of Science and Technology
†† ‡‡ , A response surface-based dual-objective design optimization was conducted in the preliminary design of a compact radial turbine for an expander cycle rocket engine. The optimization objective was to increase the efficiency of the turb
Publikováno v:
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
An extensive computational effort has been performed in order to investigate the nature of unsteady flow in the fuel line supplying the three Space Shuttle Main Engines during flight. Evidence of high cycle fatigue (HCF) in the flow liner one diamete
Autor:
Jeffry Rothermel, Frank W. Huber, Stephen Skelley, Lisa W. Griffin, Daniel J. Dorney, Randall J. Thornton, John C. Forbes
Publikováno v:
Volume 1: Symposia, Parts A and B.
As part of the development of technologies for rocket engines that will power spacecraft to the Moon and Mars, a program was initiated to develop a conceptual upper stage engine with wide flow range capability. The resulting expander cycle engine des
Publikováno v:
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit.
In order to mitigate the risk of rocket engine development, accurate analysis of turbomachiner y components is required. As part of a program at NASA/Marshall Space Flight Center to improve analytical tools, a two -stage supersonic turbine was recent
Publikováno v:
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit.
Understanding the unsteady aspects of rotor flow fields is critical to the successful design of rocket engine turbines. A technology program is currently being conducted at NASA's Marshall Space Flight Center to increase the understanding of unsteady