Estimating droplet charge in numerical simulations of charged sprays
Antoni Brentjes, Artur Krzysztof Pozarlik, Gerrit Brem
Abstract
A novel method for estimating droplet charge in numerical simulations of conductively and inductively charged sprays is presented. This method is based on balancing the effective electric field at the sprayer nozzle with the global electric field induced by the charged droplets. The global approach avoids the need for computationally expensive local resolution of the spray formation region, allowing it to be used in Eulerian–Lagrangian simulations of high-flowrate sprays. The method is validated against experimental data from literature, proving it can predict droplet charge with reasonable engineering accuracy, over a wide range of spray parameters, for conductive spray liquids.
Topics & Concepts
SprayerNozzleElectric fieldMechanicsRange (aeronautics)Charge (physics)Eulerian pathElectric chargeSpray nozzleMaterials scienceComputer simulationComputational physicsMechanical engineeringPhysicsLagrangianEngineeringComposite materialQuantum mechanicsMathematical physicsElectrohydrodynamics and Fluid DynamicsMass Spectrometry Techniques and ApplicationsFluid Dynamics and Heat Transfer