Evaporation and combustion of sprays

A mathematical model which describes the fluid flow in a bubble stirred ladle is presented. The model predicts mean flow, turbulent characteristics, bubble dispersion, and gas-liquid interaction from fundamental principles. Numerical predictions for a water model of a ladle show very satisfactory quantitative agreement with experimental results for all regions of the ladle. The model is applied to the study of refractory wear and yields results that are in qualitative agreement with practical experience.

Fluid dynamics in bubble stirred ladles: Part II. Mathematical modeling

Calcul par la methode des differences finies de jets libres fortement tourbillonnaires. Une recirculation apparait a proximite de la tuyere. Etude de la reponse du champ calcule a l'introduction de modifications liees au tourbillonnement dans le modele de turbulence k-e et aux changements dans les conditions aux limites pour la vitesse de dissipation e et la vitesse radiale au plan d'entree du jet

Computation of strongly swirling axisymmetric free jets

Analysis of the convective evaporation of nondilute clusters of drops

Numerical simulation on cooling of the fire-induced air flow by sprinkler water sprays

A mathematical model of the three-dimensional two-phase reacting flows in gas turbine combustors has been developed which takes into account the mass, momentum, and energy coupling between the phases. The fundamental equations of motion of the droplets are solved numerically in a Lagrangian frame of reference, using a finite-difference solution of the governing equations of the gas. Well-known relations are used to model the heat and mass transfer processes and the initial droplet heat-up is allowed for. The entire fuel spray is constructed using a finite number of size ranges obeying a two parameter droplet size distribution. The results are found to be in close agreement with experimental data. An important feature of this analytical technique is that it permits the rational selection or specification of fuel nozzle design.

/pdf/three-dimensional-model-of-spray-combustion-in-gas-turbine-2tu1kr5vxy.pdf

Three-Dimensional Model of Spray Combustion in Gas Turbine Combustors

A mathematical model of the three-dimensional two-phase reacting flows in gas turbine combustors has been developed which takes into account the mass, momentum and energy coupling between the phases. The fundamental equations of motion of the droplets are solved numerically in a Lagrangian frame of reference using a finite difference solution of the governing equations of the gas. Well known relations are used to model the heat and mass transfer processes and the initial droplet heat-up is allowed for. The entire fuel spray is constructed using a finite number of size ranges obeying a two parameter droplet size distribution. The technique permits the rational selection or specification of fuel nozzle design. 26 refs.

Three-dimensional model of spray combustion in gas turbine combustors

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Three-Dimensional Model of Spray Combustion in Gas Turbine Combustors

Three-dimensional model of spray combustion in gas turbine combustors