DPM Tips

DPM Tips

Tips About DPM To simulate the evaporation process of droplets, we need to define the thermophysical properties of Material accurately. Saturation vapor pressure, Binary diffusivity, latent heat, boiling point, and specific heat should be considered. These parameters are accessible in…

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DPM

DPM: Post-Processing

DPM: Post-Processing In most DPM spraying simulations, the behavior and changes of particles during the motion and effects of continuous phase on them are our field of interest. In some cases, the continuous phase could be important as well. Fortunately,…

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Drag Law DPM Part 2

Drag Law Part 2 high-Mach-number Drag Law Model This model uses the same drag force defined as the spherical model (Drag Law Part 1), but a correction factor is added. This model is used for Mach number of particles greater…

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Drag Law

Drag Law DPM Part 1

Drag Law Part1 There are some assumptions in the DPM model: The model is simulated by solving transport equations for the continuous phase and discrete second phase in a Lagrangian frame of reference. *notice* it’s not necessary to solve the…

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DPM

DPM Overview

 DPM Overview Lagrangian particle tracking (DPM) is an available model in Ansys Fluent. This works based on the force balance on the particle and the heat and mass transfer from the particle in the local continuous phase. Ansys Fluent can…

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Pressure Swirl

Pressure Swirl Atomizer (DPM)

Pressure Swirl Atomizer Another essential type of atomizer is the Pressure Swirl Atomizer, one of the most important injectors for spraying liquids, especially in propulsion systems. This atomizer is also known in the gas turbine as the Simplex Atomizer. This…

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Atomizer

Atomizer Models (DPM)

Atomizer Models ANSYS FLUENT also offers more sophisticated injection types for sprays that describe breakup phenomena. For most types of injections, you must provide the particles' initial diameter, position, and velocity. However, there are models for predicting droplet size and…

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Plain Orifice

Plain Orifice Atomizer (DPM)

Plain-orifice, the most common type of Pressure Atomizer and the most straightforward type ever made. However, there is nothing simple about internal nozzle flow and external atomization physics. In the simple Atomizer at ANSYS FLUENT, the liquid accelerates through a…

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Solid Cone

Solid-cone DPM injection Tips

Tips on Solid-cone injection In this article, tips on solid-cone injection has been investigated. In addition to simple injections, ANSYS FLUENT offers more complex sprays injections that describe the initial break-up phenomena. For most injections, you must provide the particles'…

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DPM

DPM (Grid Size Dependency)

Introduction In CFD simulation, the governing equations are discretized and rewritten, either at a point, an element, or a control volume called a cell or element. To reach an exact CFD solution, the Analyst Engineer must divide the domain into…

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DPM

DPM (Assumptions & Drag Laws)

Discrete Phase Model Assumptions There are some assumptions in DPM model: The model is simulated by solving transport equations for the continuous phase and discrete second phase in a Lagrangian frame of reference. *notice* it's not necessary to solve the…

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