Download Physics of Direct Hit and Near Miss Warhead Technology by R. Lloyd PDF

By R. Lloyd

This identify discusses direct hit know-how along with a category of warheads coined "near omit or direct hit warhead technology". those warheads make the most of such a lot in their complete quantity and mass as harm mechanisms producing 10 to 30 occasions extra mass deployed within the target's course in comparison to trendy warheads. such a lot missiles and kill cars of this day are direct hit simply and don't comprise a warhead mechanism. This new ebook discusses the demanding situations of designing small lethality enhancement applied sciences that may be applied on an immediate hit kill car. What makes anti-ballistic missile warhead layout so tough is dressmaker has to be capable of layout a warhead opposed to many alternative tactical ballistic missile payloads. those payloads can differ from chemical submunitions to unitary excessive explosive to nuclear. Warhead designers of day after today should have an figuring out of the kill requirement and vulnerabilities of ballistic missile payloads sooner than an optimal direct hit missile or warhead is designed.

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What might drive such a relationship? The regression results show only that higher production costs are correlated with higher inlet temperatures. The root cause could be something subtler. One possible explanation for the higher production costs is that higher inlet temperatures require more-expensive construction materials. On the other hand, the turbine blade materials, for example, could be difficult to machine and thus require more production hours, or have a higher scrap rate. Another possibility is that additional equipment or greater part size is necessary to cool the engine effectively.

AFRL continues to work on fuels that can withstand even higher heat loads. As these fuels are introduced, they may significantly affect O&S costs as costs of fuel, engine maintenance, spare parts, and other costs change. ______________ 5To obtain significantly greater fuel energy densities (fuel heating values), a significantly different fuel must be used. , jet propellant–type fuels, gasoline, and kerosene) all have similar fuel heating values. , methane [CH 4]) typically have somewhat higher heating values, and hydrogen’s heating value is more than twice that of traditional hydrocarbon fuels.

Similar to film cooling except that it uses a huge number of tiny cooling holes. A porous blade material allows cooling air to ooze out through the blade’s walls, carrying away the heat and then forming the flowing film of cool air around the blade. 4. The first three of these techniques have seen widespread use for several years. Notable improvements in cooling efficiency continue to be realized, through the implementation of CFD to evaluate the effectiveness of various cooling passage geometries and to understand the heat transfer from the flowstream to the turbine blades.

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