Abstract Spray modeling requires a proper representation of the dispersed phase and involves models for variety physical phenomena. On population scale, properly formulated balance equation provides complete statistical description particle system. However, in most cases high dimensionality entails prohibitive computational costs. Quadrature‐based moment methods (QBMM) limit populations to set ...

In this study, two different diesel-like igniting sprays are investigated: Engine Combustion Network (ECN) Spray C and D. particular, study focuses on the respective performances of RANS LES models to predict a turbulent, spray using OpenFOAM platform. The breakup model, discretization schemes, case setups, including combustion kept constant in order mitigate any potential effect simulation apa...

A computational study of turbulent evaporating sprays is reported. The major focus is to study the structure of turbulent evaporating sprays and to examine the sensitivity of their vaporization behavior to transient liquid-phase processes. Three models considered to represent these processes are the thin-skin, infinite-diffusion, and diffusionlimit models. Favre-averaged equations with a k-s-g ...

As a droplet moves, due to evaporation at the surface, the droplet size is gradually reduced. Due to decreasing the size of the droplets moving in the spray core, the surface charges become closer and the repulsive force between the charges increases. When the Coulombic force overcomes the surface tension force (Rayleigh instability) the droplet breaks into smaller droplets (Coulomb fission). T...

Turbulent multi-phase combustion is encountered in a number of engineering applications, such as internal combustion engines and gas-turbine aircraft engines. Therefore, the ability to perform accurate numerical simulations of these systems is of paramount importance to improve their design and efficiency. However, the underlying physics of spray combustion are extremely complicated. The liquid...

In the drive towards improved electrical energy storage for applications ranging from electric vehicles to grid stabilization and renewable energy storage, the important role and great need of electrochemical storage and batteries specifically will continue, due to batteries’ high energy density, simplicity, reliability, and potential for favorable performance/cost ratio. A redox flow battery c...

A numerically effective approach was developed for the modeling of spray-drying colloidal suspensions. This based on integration two models. The first is a phenomenological and radially symmetric model accounting drying single-droplets, while second employs computational fluid dynamics (CFD) simulations to account gas flow conditions atomization in spray dryer. Experiments were also conducted s...

A droplet vaporization model has been developed for use in high pressure spray modeling. The model is a modification of the common Spalding vaporization model that accounts for the effects of high pressure on phase equilibrium, transport properties, and surface tension. The new model allows for a nonuniform temperature within the liquid by using a simple 2-zone model for the droplet. The effect...