Color Spraying on the Wall with Conical Injection

Color Spraying on the Wall with Conical Injection, CFD Simulation Ansys Fluent Training

In this project, Color Spraying on the Wall with Conical Injection has been simulated by Ansys Fluent software. We used the one-way DPM to simulate the discrete phase. The injection type is a cone and the velocity of the particles is equal to 10 with a cone angle of 30 degrees.

Geometry & Mesh

The 3D geometry of this project has been produced with SpaceClaim software. The length and width of the computational area are 3 m, and its height is 4 m.

Mesh is created with  Ansys Meshing software and the mesh type is unstructured. The number of cells is 254934.

To simulate the present model, we consider several assumptions:

• The solver is pressure-based.
• The current simulation is unsteady in terms of time.
• We ignored the gravity effect.

Here is a summary of the steps for defining the problem and its solution in the following table:

Models
Viscous model		laminar
Discrete phase		on
	particle treatment	unsteady particle tracking
	material in injection	Color Spray
	particle type in injection	inert
	injection type	cone
Boundary conditions
Wall & wall back
	wall motion	stationary wall
	discrete phase BC type	escape
top wall
	wall motion	stationary wall
	discrete phase BC type	trap
Solution Methods
Pressure-velocity coupling		simple
Spatial discretization	pressure	second-order
	momentum	second-order upwind
	Modified turbulent viscosity	first-order upwind
	Initialization
Initialization method		standard

Color Spraying Results

In this simulation, the spray paint on the wall is simulated using an injector to insert the particles in a conical injection manner. According to the conical angle, the range of motion of the particles is determined.