A numerical code is presented that simulates the evaporation of water droplets on hot solid surfaces. The surface temperature conditions are such that only single-phase evaporation is obtained. The two-dimensional, axial-symmetrical energy diffusion equation, discretized with the finite volume method, is used to model the transient within both the droplets and the solid substrate.The current work simulates the substrate cooling effect due to a multi-droplet system, made of a ring of six identical droplets surrounding a central one. The overall transient is obtained by superposition of effects, from the solution for the axial-symmetrical substrate temperature field due to the evaporation of an individual droplet. The numerical results are validated by comparison with experimental data.The code is implemented in Matlab, using a modular and flexible architecture. This will allow the expansion of the code to simulate convective motion and nucleate boiling in the droplet, as well as other fluids.

Numerical simulation of the cooling effect of multiple droplets on a hot solid surface / Muscio, Alberto; F., Gavelli; Tartarini, Paolo. - ELETTRONICO. - CD-Rom:(2001), pp. ---. (Intervento presentato al convegno ICMF 2001 - 4th International Conference on Multiphase Flow tenutosi a New Orleans (Louisiana), U.S.A. nel 27 Maggio-1 Giugno 2001).

### Numerical simulation of the cooling effect of multiple droplets on a hot solid surface

#### Abstract

A numerical code is presented that simulates the evaporation of water droplets on hot solid surfaces. The surface temperature conditions are such that only single-phase evaporation is obtained. The two-dimensional, axial-symmetrical energy diffusion equation, discretized with the finite volume method, is used to model the transient within both the droplets and the solid substrate.The current work simulates the substrate cooling effect due to a multi-droplet system, made of a ring of six identical droplets surrounding a central one. The overall transient is obtained by superposition of effects, from the solution for the axial-symmetrical substrate temperature field due to the evaporation of an individual droplet. The numerical results are validated by comparison with experimental data.The code is implemented in Matlab, using a modular and flexible architecture. This will allow the expansion of the code to simulate convective motion and nucleate boiling in the droplet, as well as other fluids.
##### Scheda breve Scheda completa Scheda completa (DC)
2001
ICMF 2001 - 4th International Conference on Multiphase Flow
New Orleans (Louisiana), U.S.A.
27 Maggio-1 Giugno 2001
CD-Rom
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-
Muscio, Alberto; F., Gavelli; Tartarini, Paolo
Numerical simulation of the cooling effect of multiple droplets on a hot solid surface / Muscio, Alberto; F., Gavelli; Tartarini, Paolo. - ELETTRONICO. - CD-Rom:(2001), pp. ---. (Intervento presentato al convegno ICMF 2001 - 4th International Conference on Multiphase Flow tenutosi a New Orleans (Louisiana), U.S.A. nel 27 Maggio-1 Giugno 2001).
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Utilizza questo identificativo per citare o creare un link a questo documento: `https://hdl.handle.net/11380/465951`
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