This paper deals with the multicomponent nature of gas turbine fuels under high-pressure conditions. The study is motivated by the consideration that the droplet submodels that are currently employed in spray codes for predicting gas turbine combustor flows do not adequately incorporate the multicomponent fuel and high-pressure effects. The quasisteady multicomponent droplet model has been empl...

A quantitative description of droplet evaporation is important to aerosol research for nanofabrication, spray drying, fuel combustion, pollution control, and respiratory medical treatments. Evaporation is a movingboundary problem with coupled mass and heat transport. An explicit finite-difference methodology and computer code has been developed for simulation of an evolving droplet, property da...

A previously developed kinetic model for two-component vapour and background gas (air) is applied to the analysis of droplet heating and evaporation in Diesel engine-like conditions. The model used in the analysis is based on the introduction of the kinetic region in the immediate vicinity of the droplets and the hydrodynamic region. The presence of two components in the vapour, finite thermal ...

Several approaches to numerical modelling of liquid droplet heating and evaporation by convection and radiation from the surrounding hot gas are discussed. The finite thermal conductivity of liquid, recirculation in droplets, and time dependence of gas temperature and the convection heat transfer coefficient are taken into account. For the constant and almost constant convection heat transfer c...

Wetcompression of a fuel aerosol has beenproposed as ameans of creating gas-phasemixtures of involatile diesel-representative fuels andoxidizer + diluent gases for rapid compressionmachine (RCM)experiments. The use of high concentration aerosols (e.g., 0.1 mLfuel/Lgas, 1 10 droplets/Lgas for stoichiometric fuel loading at ambient conditions) can result in droplet–droplet interactions which lead...

The suspended droplet framework is commonly used to study liquid fuel evaporation and combustion. However, measurements at this facility can be affected by artifacts. This examines their impact on butanol evaporation. Thermal radiation fiber conduction effects are specifically addressed. Results show that heat through the significantly affect evaporation, even causing internal bubbling in some ...

the present study is concerned with measuring and simulating soot formation and combustion in turbulent liquid fuel spray flames. soot concentrations inside the combustor are measured by filter paper technique. the simulation is based on the solution of the fully-coupled conservation equations for turbulent flow, chemical species kinetic modeling, fuel droplet evaporation and combustion and soo...