Inhaler Asthma Spray, CFD Simulation ANSYS Fluent Tutorial

Description

Description

This project is related to the numerical simulation of the Inhaler Asthma Spray using Ansys Fluent software.

Shortness of breath is an unpleasant feeling in which a person feels suffocated during activity and feels that they are short of breath and do not get enough oxygen to the body.

Respiratory sprays are used to treat shortness of breath. In general, an inhaler spray is a portable device containing a special medicine that the patient person can inject the medicine into his respiratory tract when he breathes.

In general, an inhaler spray is a portable device containing a special medicine that the patient person can inject the medicine into his respiratory tract when he breathes.

One of the advantages of using sprays is that the drug mainly enters the respiratory tract and lungs and is not absorbed by other body organs. For this reason, they have fewer side effects than oral or injectable drugs.

We modeled the geometry of the project using Design Modeler software. In this modeling, a spray device is designed. In the inner part of this device, we have considered a hole as a place to inject and spray the drug.

Also, we have modeled a space as a computational zone around the spray so that the process of spraying the drug takes place inside it.

Then we meshed the model with Ansys Meshing software. The model mesh is unstructured, and the number of cells is equal to 752277.

Asthma Spray Methodology

In this project, we have simulated the process of spraying drug particles. So we have to use the Lagrangian approach. According to this approach, we should investigate particle by particle in a discrete space.

Then we used the Discrete Phase Model (DPM). Then we have defined an Injection for dispersing discrete particles. The injection type is Surface, and the particle type is Inert. The injection of particles is unsteady and happens within 0.1 seconds.

Asthma Spray Conclusion

After the solution, we studied particle tracking. At different times, we have investigated particle tracking. We also obtained an animation of particle injection.

By checking the particle over time, the spraying process of this device can be studied. The results show that the simulation is done correctly. This device sprays medicine well.