壁面過熱度を考慮した噴霧-壁面干渉モデル

概要

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In this study, a new concept is proposed in order to simulate the behavior of multicomponent fuel spray impinging on a hot surface. Here, distillation curve of the fuel is considered to describe the vaporization property of each component in gas oil, since the superheating degree of the surface, defined by the temperature difference between the wall surface and the fuel saturated temperature, affects the solid-liquid boiling state. At the first, some impinging sprays structured by single component fuel are calculated to confirm the difference of vaporizing characteristics and impinging behavior in each fuel. Secondary, the spray impingement submodel is made. In this model, the difference of droplet breakup, reflection and dispersion process with the difference of boiling state is considered based on several experimental results of impinging droplet on a hot wall. This new submodel is incorporated into KIVA-II code. And the results calculated by this model are compared with that by KIVA-II original code.
社団法人日本機械学会の論文
2000-02-25