Abstract
Some new approaches to the solution of complex problems, focused on modelling of puffing and micro-explosions in composite fuel/water droplets, using relatively simple mathematical tools, will be summarised.
Our approach is based on the assumption that a spherical water sub-droplet is located in the centre of a spherical fuel droplet. The heating of a fuel droplet is described by the heat conduction equation with the Robin boundary condition at its surface and continuity conditions at the fuel-water interface. The analytical solution to this equation, obtained at each time step, is incorporated into the numerical code and used for the analysis of droplet heating and evaporation. The effects of droplet thermal swelling are taken into account. The effects of thermal radiation, supporting fibre, the effects of the neighbouring droplets and diffusion of species in the case of multicomponent droplets are taken into account.
Our approach is based on the assumption that a spherical water sub-droplet is located in the centre of a spherical fuel droplet. The heating of a fuel droplet is described by the heat conduction equation with the Robin boundary condition at its surface and continuity conditions at the fuel-water interface. The analytical solution to this equation, obtained at each time step, is incorporated into the numerical code and used for the analysis of droplet heating and evaporation. The effects of droplet thermal swelling are taken into account. The effects of thermal radiation, supporting fibre, the effects of the neighbouring droplets and diffusion of species in the case of multicomponent droplets are taken into account.
| Original language | English |
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| Pages | xli-xlii |
| Number of pages | 2 |
| Publication status | Published - 7 Jul 2021 |
| Event | Proceedings of the World Congress on Engineering - London, UK, 1-3 July 2015 Duration: 1 Jan 2015 → … |
Conference
| Conference | Proceedings of the World Congress on Engineering |
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| Period | 1/01/15 → … |