Spectral Experiment of High Enthalpy Flow with Ballistic Range.

Fuels With a High Enthalpy of Evaporation in Si Engine

The increasing use of fuels derived from oil, deepens concern about the fact that non-fossil fuels have to be considered as the fuels of the future. Among the alternatives, hydrogen produced from the abundant sources of water, seems to be one of the best, but it suffers drawbacks with regard to combustion, storage and transportation. The other alternatives are ammonia, produced from unlimited s...

Dynamics of infinite-range ballistic aggregation

We calculate the width of the growing interface of ballistic aggregation in the limit in which the range of the sticking interaction between the particles becomes infinite. We derive a scaling form for the width, a n d we compute the shortand long t ime exponents finding U = $ and CI =;. Furthermore, we find that the crossover exponent defining the argument of the scaling function is y = 4. We ...

Experimental Simulation of High Enthalpy Planetary Entries

For the current exploration programs high enthalpy landing missions are foreseen. It is rather difficult to simulate the corresponding enthalpies with steady state facilities. For the case of sample return missions such as Genesis, STARDUST or Hayabusa hyperbolic entries require maximum enthalpies of about 80 MJ/kg. Atmospheric entry parameters of relevance were derived with the model of Allan ...

The Effect of Experiment Range of Control Variables on the Efficiency of Regression Modeling

The efficient planning of each system requires an understanding of the true nature of the system. Regression models also represent a system that its input variables, the role of the system input, its variables coefficients, the role of the system process, and its response variables, play the role of the system output. Therefore, for exact regression modeling and efficient planning, it's essenti...

Optimum Interception of a Ballistic Missile at Intermediate Range