热门站点| 世界资料网 | 专利资料网 | 世界资料网论坛
收藏本站| 设为首页| 首页

Water Flow Performance of a Superscale Model of the Fastrac Liquid Oxygen Pump

作者:科技文献资料网 时间:2018-10-19 10:54:08  浏览:9668   来源:科技文献资料网
下载地址: 点击此处下载
[唯一标识符]:CDSITC.AEROSPACE.N00-12410
[文献来源]:美国航空航天数据库(aerospace)
[资源原始索取号]:N2000-12410; Reference AN: N2000-12410
[标题]:Water Flow Performance of a Superscale Model of the Fastrac Liquid Oxygen Pump
[作者]:Skelley Stephen; Zoladz Thomas
[来源]:NASA-no. 20000010647. Thermal-and-Fluids-Huntsville-AL-United-States-13-17-Sep. 1999.
[文摘]:As part of the National Aeronautics and Space Administration's ongoing effort to lower the cost of access to space, the Marshall Space Flight Center has developed a rocket engine with 60,000 pounds of thrust for use on the Reusable Launch Vehicle technology demonstrator slated for launch in 2000. This gas generator cycle engine, known as the Fastrac engine, uses liquid oxygen and RP-1 for propellants and includes single stage liquid oxygen and RP-1 pumps and a single stage supersonic turbine on a common shaft. The turbopump design effort included the first use and application of new suction capability prediction codes and three-dimensional blade generation codes in an attempt to reduce the turbomachinery design and certification costs typically associated with rocket engine development. To verify the pump's predicted cavitation performance, a water flow test of a superscale model of the Fastrac liquid oxygen pump was conducted to experimentally evaluate the liquid oxygen pump's performance at and around the design point. The water flow test article replicated the flow path of the Fastrac liquid oxygen pump in a 1.582x scale model, including scaled seal clearances for correct leakage flow at a model operating speed of 5000 revolutions per minute. Flow entered the 3-blade axial-flow inducer, transitioned to a shrouded, 6-blade radial impeller, and discharged into a vaneless radial diffuser and collection volute. The test article included approximately 50 total and static pressure measurement locations as well as flush-mounted, high frequency pressure transducers for complete mapping of the pressure environment. The primary objectives of the water flow test were to measure the steady-state and dynamic pressure environment of the liquid oxygen pump versus flow coefficient, suction specific speed, and back face leakage flow rate. Res
[关键词]:WATER FLOW; SCALE MODELS; ROCKET ENGINES; ROCKET ENGINE DESIGN; TURBINE PUMPS; COST REDUCTION; GAS GENERATORS; LIQUID OXYGEN; CLEARANCES ; STATIC PRESSURE; STEADY STATE; DYNAMIC PRESSURE; FLOW COEFFICIENTS; FLOW VELOCITY; CAVITATION FLOW; ENERGY DISSIPATI
[出版年份]:1999
[专业领域]:Mechanical Engineering
下载地址: 点击此处下载
[文献类型]:科技报告
[标题]:Micropackaging for Mm-Wave Circuits.
[作者]:L. P. Katehi;
[机构]:Michigan Univ., Ann Arbor. Dept. of Electrical and Computer Engineering.
[关键词]:microelectronics,circuit analysis,microwave antennas,finite difference theory, nonlinear analysis, time domain, frequency domain, bandpass filters, millimeter wave equipment, wavelet transforms,electronic packaging, microwave circuits
[出版年份]:1999
[报告时间]:1 May 1998,
[页码]:266p
[馆藏索取号]:AD-A358982
[总页数]:266


[唯一标识符]:10.2514/6.2012-3428
[文献来源]:美国航空航天学会会议(AIAA)
[文献类型]:科技会议
[标题]:Air Revitalization in Orbit Demonstration for a Future Long-Duration Manned Mission
[作者]:Yoshitsugu Sone, Mitsuo Oguchi, Masato Sakurai, Mitsuru Ohnishi, Asuka Shima
[出版单位]:美国航空航天局
[出版时间]:15 July 2012 - 19 July 2012
[出版年份]:2012
[报告号]:;AIAA2012-3428;
[会议名称]:42nd International Conference on Environmental Systems
[馆藏索取号]:AIAA2012-3428
[总页数]:6



版权声明:所有资料均为作者提供或网友推荐收集整理而来,仅供爱好者学习和研究使用,版权归原作者所有。
如本站内容有侵犯您的合法权益,请和我们取得联系,我们将立即改正或删除。
信息产业部备案号:京ICP备09025792号