Determination of the aerodynamic droplet breakup boundaries based on a total force approach

Autor: Ilias Malgarinos, Nikos Nikolopoulos, Konstantinos P. Moustris, Konstantinos-Stefanos Nikas, Manolis Gavaises, George Strotos

Publikováno v: International Journal of Heat and Fluid Flow

The determination of the critical Weg number separating the different breakup regimes has been extensively studied in several experimental and numerical works, while empirical and semi-analytical approaches have been proposed to relate the critical W

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::494543869638b0b9c8fb8d5bce59f906
https://doi.org/10.1016/j.ijheatfluidflow.2018.01.001

Aerodynamic breakup of an n -decane droplet in a high temperature gas environment

Autor: Ilias Malgarinos, George Strotos, Nikos Nikolopoulos, Manolis Gavaises

Publikováno v: Fuel

The aerodynamic droplet breakup under the influence of heating and evaporation is studied numerically by solving the Navier-Stokes, energy and transport of species conservation equations; the VOF methodology is utilized in order to capture the liquid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53586140aebf009b95e1780fef2fc021
https://doi.org/10.1016/j.fuel.2016.08.014

Numerical investigation of the aerodynamic breakup of droplets in tandem

Autor: Manolis Gavaises, Dionisis Stefanitsis, Emmanouil Kakaras, George Strotos, Nikolaos Nikolopoulos, Ilias Malgarinos

Publikováno v: International Journal of Multiphase Flow

The present work examines the aerodynamic breakup of four liquid droplets in tandem formation at Diesel engine conditions using the Volume of Fluid (VOF) method. The examined Weber (We) numbers range from 15 up to 64 and the non-dimensional distances

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7fd2fb467d2a348a670c86080b4a842
https://zenodo.org/record/2551131

Role of heat transfer in bubble dynamics neglecting phase change. A numerical study

Autor: Stavros Fostiropoulos, Manolis Gavaises, Ilias Malgarinos, George Strotos, Emmanouil Kakaras, Nikolaos Nikolopoulos, Phoevos Koukouvinis

Publikováno v: Proceedings ILASS–Europe 2017. 28th Conference on Liquid Atomization and Spray Systems
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
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[EN] Bubble dynamics is generally described by the well-known Rayleigh-Plesset (R-P) equation in which the bubble pressure (or equivalently the bubble density) is predefined by assuming a polytropic gas equation of state with common assumptions to in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6dad90ec9c8353a948cf130572ac3895
https://doi.org/10.4995/ilass2017.2017.4691

Numerical investigation of heavy fuel droplet-particle collisions in the injection zone of a Fluid Catalytic Cracking reactor, Part I: Numerical model and 2D simulations

Autor: Manolis Gavaises, Ilias Malgarinos, Nikolaos Nikolopoulos

The present paper investigates the collisions between heavy gasoil droplets and solid catalytic particles taking place at conditions realized in Fluid Catalytic Cracking reactors (FCC). The computational model utilizes the Navier-Stokes equations alo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9360dae9e94489cbcfae3c14aaac1b0b
https://openaccess.city.ac.uk/id/eprint/17238/1/manuscript_revised_PartI.pdf