Simulent Spray offers resources, expertise and technical support for modelling, designing, and analyzing coating and spraying systems.

Simulent Spray can assist you to:

Simulent Spray provides services for the following industries:

Designing any new nozzle starts with understanding the inlet conditions and the fluidflow inside the nozzle.

Depending on the type of the nozzle, one or multiple fluids may enter the nozzle through one or several inlets. Fluids can either be premixed or they may interact inside the nozzle. Simulent Spray can help you:

• Analyze the flow inside the nozzle,
• Optimize flow patterns,
• Study fluid-fluid interactions,
• Determine interfacial shear stresses,
• Calculate exiting fluid velocities,
• Determine sheet thickness and ligament size,
• Calculate initial droplet size.

The physics of the flow exiting a nozzle is very complex. Depending on the nozzle design, operating conditions and the surrounding gas flow, nozzle can produce from large ligaments to very fine droplets.

Using our unique Volume of Fluid (VOF) based software, Simulent Spray can assist you to accurately model the flow exiting the nozzle. We can help you to:

• Model the liquid exiting the nozzle and,
• Study the effect of the surrounding fluid,
• Determine the fluid sheet thickness,
• Model liquid breakup,
• Calculate resulted drop size.

Based in the above analysis, Simulent Spray can recommend optimization for design and operating conditions.

Below is a snapshot of a simulation for determining the liquid sheet thickness performed for Pratt & Whitney Canada:

Modelling Primary atomization for
Aerospace industry

During the spraying process droplets can breakup, collide, and/or agglomerate. Moreover, in many situations, droplets evaporate or solidify.

Simulent Spray offers a three-dimensional algorithm that models the spray in transient, turbulent, chemically reactive flows. Some of the features of the Simulent Spray are:

• Modelling evaporation collision and breakup of sprayed particles,
• Modelling Combustion,
• Multiple and variable injection points.

The algorithm simultaneously solves the continuity equation for all the species, the continuity and momentum equations for the total fluid flow, and the energy equation for all species. It incorporates different turbulence modelling schemes:

• K-epsilon,
• Sub-grid scale (SGS)

The algorithm also solves the equation of state and considers the chemical reactions.

Spray modelling for the Black Liquor gasification

Sprayed particles can be deposited on a substrate and used as

• Coating for wear protection;
• Coating for protection against corrosion;
• Thermal barrier;
• Cleaning or scrubbing agent;
• Fluxing;
• ...

Simulent Spray explores in detail different aspects of the spray deposition:

As a tool, it comes with a library for different material properties used to form the coating and it can be used to get valuable information such as thickness, roughness and porosity for a specified coating process.

(a) coating simulation; (b) cross section showing porosity

Simulent Spray also provides invaluable information about the physics of single or multiple droplets impacts and solidification. It simultaneously calculates momentum and energy equations and has special features for the phase change and solidification.

Simulation of impact and solidification of multiple droplets