TY - Type of reference TI - Drop vaporization frequency response: an approximate analytical solution for mixed injection regimes AU - Kwassi Anani AU - Roger Prud’homme AU - Mahouton Norbert Hounkonnou AB - The vaporisation frequency response due to pressure oscillations is analysed for a spray of repetitively injected drops into a combustion chamber. In the Heidmann analogy, this vaporizing spray is represented by the so-called ‘mean droplet’, which is a continuously fed spherical droplet at rest inside the combustion chamber. Only radial thermal convection and conduction effects are considered inside the vaporizing mean droplet since the feeding is realized symmetrically with the same liquid fuel, using a point source placed at the centre. This feeding process, at some liquid-liquid heat transfer coefficient, is now considered as a proper boundary condition of the generalized feeding regime, which controls the whole fuel injection process into the chamber. Effects due to the variation of the heat transfer coefficient are analysed for the evaporating mass response factor, calculated on the basis of the Rayleigh criterion. A chaotic response is especially noticed in the process when the heat transfer coefficient is fixed at unity. DO - 10.21494/ISTE.OP.2021.0748 JF - Thermodynamics of Interfaces and Fluid Mechanics KW - heat transfer coefficient, truncated expansion, double confluent Heun equation, transfer function., fonction de transfert, équation doublement confluente de Heun, développements limités, coefficient de transfert thermique, L1 - https://openscience.fr/IMG/pdf/iste_timf21v5n1_4.pdf LA - en PB - ISTE OpenScience DA - 2021/10/29 SN - 2514-4642 TT - Réponse en fréquence de l’évaporation des gouttes : une solution analytique approximative pour les régimes d’injection mixtes UR - https://openscience.fr/Drop-vaporization-frequency-response-an-approximate-analytical-solution-for-mixed-injection-regimes IS - Issue 1 VL - 5 ER -