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Gun-launched meteorological probe and its application to a global meteorological sounding network.

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[唯一标识符]:CDSITC.AEROSPACE.A70-10082
[文献来源]:美国航空航天数据库(aerospace);国际航宇文摘(IAA)
[资源原始索取号]:A70-10082
[标题]:Gun-launched meteorological probe and its application to a global meteorological sounding network.
[文摘]:(Global meteorological sounding network requirements, restraints and sensors, considering gun launched meteorological probe role)
[出版时间]:196909
[出版年份]:1970
[馆藏索取号]:A70-10082


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[唯一标识符]:CDSITC.AEROSPACE.A98-10364
[文献来源]:美国航空航天数据库(aerospace)
[资源原始索取号]:A1998-10364; Reference AN: A98-10364
[标题]:Numerical simulation of heterogeneous particle combustion accounting for morphological changes
[作者]:Peters Bernhard
[来源]:SAE-International-Conference-on-Environmental-Systems-27th-Lake-Tahoe-NV-July-14-17-1997
[文摘]:This paper presents a numerical simulation method to calculate the gasification of porous particles of different sizes and composition which takes into account morphological changes of the inner pore structure. Different relationships for the evolution of the inner surface dependent on the degree conversion are assessed. In a first approach the gasification mechanism is represented by a one-step reaction. The method operates on the 1D and transient conservation equation for mass and energy for spherical particles with external heat and mass transfer. The solution yields the distribution of temperature, inner surface, porosity, concentration of solid material, and gaseous components vs radius and time. One of the main novelties of this approach is that it covers the entire reaction regime between the reacting and the shrinking core models. Satisfactory agreement is obtained between measured and calculated results. (Author)
[关键词]:DIGITAL SIMULATION; MORPHOLOGY ; GASIFICATION ; POROUS MATERIALS; PARTICLE SIZE; COMBUSTION ; HEAT TRANSFER; MASS TRANSFER; PYROLYSIS
[出版年份]:1997
[专业领域]:INORGANIC AND PHYSICAL CHEMISTRY
[文献类型]:科技报告
[标题]:WAVE PROPAGATION IN THE TENTH-SCALE MODEL OF THE MANEUVERING BASIN. PART I. LONG-CRESTED REGULAR WAVES,
[作者]:marks,wilbur
[机构]:David Taylor Model Basin Washington D C Hydromechanics Lab
[关键词]:water waves,propagation,model basins,water waves,frequency,test facilities,simulators,ship models,beaches,
[出版年份]:1967
[报告时间]:Oct 58,
[页码]:43p
[馆藏索取号]:AD-650536
[总页数]:25