A physically-based Mie–Grüneisen equation of state to determine hot spot temperature distributions
| Autor: | David E. Kittell, Cole Yarrington |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Equation of state Explosive material General Chemical Engineering General Physics and Astronomy Energy Engineering and Power Technology Thermodynamics Hot spot (veterinary medicine) 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology 01 natural sciences 010305 fluids & plasmas Integrating factor Shock (mechanics) chemistry.chemical_compound Fuel Technology Volume (thermodynamics) chemistry Modeling and Simulation Hexanitrostilbene 0103 physical sciences 0210 nano-technology Mie–Gruneisen equation of state |
| Zdroj: | Combustion Theory and Modelling. 20:941-957 |
| ISSN: | 1741-3559 1364-7830 |
| DOI: | 10.1080/13647830.2016.1201145 |
| Popis: | A physically-based form of the Mie–Gruneisen equation of state (EOS) is derived for calculating 1d planar shock temperatures, as well as hot spot temperature distributions from heterogeneous impact simulations. This form utilises a multi-term Einstein oscillator model for specific heat, and is completely algebraic in terms of temperature, volume, an integrating factor, and the cold curve energy. Moreover, any empirical relation for the reference pressure and energy may be substituted into the equations via the use of a generalised reference function. The complete EOS is then applied to calculations of the Hugoniot temperature and simulation of hydrodynamic pore collapse using data for the secondary explosive, hexanitrostilbene (HNS). From these results, it is shown that the choice of EOS is even more significant for determining hot spot temperature distributions than planar shock states. The complete EOS is also compared to an alternative derivation assuming that specific heat is a function of temperature... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|