Biomedical & Healthcare Training Package, BEGINNER

Biomedical & Healthcare Training Package for BEGINNER ANSYS Fluent Users

Fluids, fluid dynamics, and transport-related phenomena are widespread in medicine and the life sciences. We apply them because of their potential for use as building blocks, components, and subsystems; As well as signaling, power supply, regeneration, and destruction have evolved. In addition, we develop biomedical engineering devices through medical, pharmaceutical, and biological devices. So, we use the same pathways and physical forms to deliver our work product. Work products include catheters, implantable artificial hearts, solutions, and inhaled biological materials.

Hence, understanding and predicting fluid and transport behavior has become a distinct advantage for companies operating in the medical, pharmaceutical, and biology sectors in the life sciences industry. Computational Fluid Dynamics (CFD) is the name of a set of tools for predicting fluid behavior. We use this set of biomedical tools to test stress in pre-sampling design, reduce the volume of laboratory tests with blood and other biological fluids, reduce the need for preclinical tests, and evaluate product performance. CFD simulations in the field of Computational Fluid Dynamics Analysis (CFD) for the life sciences industry using the advanced model definition and analysis software like ANSYS Fluent are carried out with the expertise of the MR CFD team.

Here are some biomedical CFD simulations that engineers can purchase and use as a template for their CFD analysis in various biomedical systems and components as a biomedical CFD Training Package. This CFD training package includes 10 practical Biomedical & Healthcare engineering exercises using ANSYS Fluent software. We suggest this package for all healthcare and biomedical engineers who will learn CFD simulation in this field at the BEGINNER level.

We start this training package with 2 simple practical exercises in the field of blood flow in arterial occlusion and clogged arteries.

Exercise number 1 simulates arterial occlusion considering blood by ANSYS Fluent software. The fluid used in the simulation process is blood, which has a density of 1060 kg.m-3 and a viscosity of 0.35 kg.m-1s-1. The flow rate of the blood flow to the artery from both inlet branches is 0.002385 kg.s-1 and the vessel wall is assumed to be static.

Problem number 2 simulates the blood flow in a clogged artery using ANSYS Fluent software. In this modeling, a number of horizontal vessels are designed in which there is a curved blockage in the middle of the blood flow path. The defined blood flow inside this vessel has a density of 1035 kg.m-3 and a viscosity of 0.0043 W.m-1.K-1.

Then we consider the blood as a Non-Newtonian applying Pulsatile flow by 3 practical exercises.

Training number 3 simulates blood flow within a clogged vessel using ANSYS Fluent software. Fluids are divided into two categories according to their viscosity: Newtonian and Non-Newtonian fluids. Viscosity of a fluid is a parameter that indicates the resistance of that fluid to flow.

In project number 4, unsteady pulsatile blood flow is simulated in an artery bifurcation simplified model by ANSYS Fluent software. The unsteady nature of blood flow is simulated using a User-Defined Function (UDF), which changes the inlet velocity according to flow time as a sinus function. The results show the prone regions of artery wall rupture and stenosis formation.

Problem number 5 deals with the blood flow in a vessel by ANSYS Fluent software. The fluid used in this simulation is blood, which is a non-Newtonian fluid. Non-Newtonian fluids are fluids whose viscosity varies with their reaction rate, meaning they lack a specific viscosity.

After studying the different kinds of blood flow, it is time to investigate the CORONA virus infection through the next 3 practical exercises.

In the practical Exercise number 6, based on the CFD method and using ANSYS Fluent software, an attempt has been made to simulate the release of virus particles from a Coronavirus patient’s mouth while talking and transmitting it to another person in a specific space (social distancing). This study aims to investigate the ability of virus particles to propagate and transmit at a distance less than a social distance. For the present simulation, the discrete phase model (DPM) is used; Because this model allows us to study a mass of particles discretely in a continuously fluid space.

In problem number 7, based on the CFD method and using ANSYS Fluent software, an attempt has been made to simulate the release of coronavirus particles from a patient’s mouth while talking and using a shield (mask) to prevent transmission to another person. The aim of this study was to evaluate the effectiveness of using a shield or mask as a barrier on the face of a patient against the spread of virus particles. Also, for the present simulation, the discrete phase model (DPM) is used.

Simulation number 8 simulates the flow of fresh air through the air conditioning system inside a patient’s room considering the CORONA virus by ANSYS Fluent software. We place the patient on a bed in a room with a high temperature on his body and constantly spreads the CORONA-virus particles by breathing through his mouth into the room’s interior. In fact, the goal is to use an air conditioning system and keep the fresh air flowing continuously inside the room to remove contaminants from the patient’s mouth through the outlet vents, and the room environment should be purified in terms of pollution, and a balanced and pleasant temperature should be provided for the thermal comfort of the patient inside the cleanroom.

Finally, we simulate 2 different case studies of Asthma Spray Inhaler Injection Into the Lung and Hyperthermia Therapy of Biological Tissue.

In training number 9, Asthma Spray in human lungs was investigated using the one-way DPM (Discrete Phase Method) method using Ansys Fluent software. In this simulation, two types of material are used: air and particles that enter the lungs as Discrete phase material. Trajectories of particles within the lung were observed using Ansys Fluent software.

The last study (project number 10) examined blood flow in capillaries passing through a tissue containing cancerous tumors and using Hyperthermia Therapy. For this purpose, we assume a spherical space to be an example of healthy body tissue or cell in which blood flows at a very slow rate. There are several veins within this tissue.