DPM – ANSYS Fluent Training Package, 10 Practical Exercises for INTERMEDIATE Users

Description

Discrete Phase Model (DPM) – ANSYS Fluent Training Package, 10 Practical Exercises for INTERMEDIATE Users

This CFD training package is prepared for INTERMEDIATE users of ANSYS Fluent software in the Discrete phase Model (DPM) area. You will learn and obtain comprehensive training on how to simulate medium projects. The achieved knowledge will enable you to choose the most appropriate modeling approaches and methods for applications and CFD simulations.

This package trains the necessary proficiency you will require to start doing average computational fluid dynamics (CFD) Discrete Phase Modeling simulations on your own using Ansys Fluent software. Qualified training movies and comprehensive CFD concepts explanations, including setup, solution, results, and all perspectives of carrying out CFD simulations in Ansys Fluent.

Ventilation considering Coronavirus (Covid-19)

Corona (COVID 19) is currently recognized as the most significant human challenge globally; Because this disease, in addition to being dangerous to human health, has a high transmission power between a sick person and healthy people. The breathing of a person without a mask with coronavirus in a closed public environment transmits the disease to their neighbors.

In project number 1, three different HVAC models were analyzed to investigate the effect of different types of ventilation inside a room. A corona patient breathes on the breathing particles coming out from the patient’s mouth and how they spread inside this room. These types of HVAC include one-sided, cross-sided, and lateral ventilation. In each case, the airflow enters the domain through the window(s) placed on the wall boundary of the room with a velocity of 2 m/s.

In project number 2, based on the CFD method, an attempt has been made to simulate the respiration of viral air from the mouth of sick coronavirus carrier students in the Classroom. This model includes a computational domain in the form of a classroom and chairs inside which a student is modeled on each chair. For each of these students, a surface is defined as the mouth as the source of the virus’s respiration and transmission. This work aims to investigate the effectiveness of the ventilation system installed in the classroom to eliminate polluted air (DPM) and clean the air.

In Project number 3, an attempt has been made to simulate the respiration of viral air from the mouths of several patients carrying the coronavirus in the Airplane. This model includes a computational domain in the form of an airplane and seats inside it, on which a passenger is modeled. This study aims to investigate the transmission of the coronavirus between passengers caused by Breathing at short distances. The virus particles are defined as INERT particles and the injection type is SURFACE and through the inner surface of the mouth of each passenger (inlet-mouth).

Project number 4 simulates fresh airflow through the Air Conditioning System inside a Patient’s Room, considering the coronavirus. We place the patient on a bed in a room with a high temperature on his body and constantly spread the coronavirus particles by breathing through his mouth into the room’s interior. In the present model, the fresh airflow from the upper vents of the room has a velocity equal to 0.58 ms-1 and a temperature of 294 K; the patient’s body surface temperature is equal to a constant value of 308 K.

Industrial Equipments

Many industrial types of equipment need to be investigated using the lagrangian approach. Cyclones are one of the most widely used industrial systems in air dewatering, dust disposal, or separation of solid particles from the gas flow. In these types of systems, separating solid particles from gas flows is carried out with the help of centrifugal and gravity forces, without the use of filters. Project number 5 is a Gas Cyclone device. In this device, the gas flow continuously enters from the top to the inner space between the two cylinders and the partial cone. Also, the solid particles enter the cyclone interior from the top as the discrete phase. The contact between these two flows and centrifugal force results in separating these two phases.

In project number 6, Sedimentation and Erosion in a shell and tube heat exchanger were investigated. The system consists of two different fluids, including oil and water (Water flows in the shell and oil in the tube). The software’s different erosion models help correctly predict the erosion effect in other cases according to different working conditions. The velocity inlet of oil and water enters the domain with the speed of 1 m/s with gravity considered as -9.81 m/s-2 on the z-axis.

In project number 7, the effect of impurities in the working fluid on the body Gas Splitter is investigated. A splitter is a device for uniformly distributing incoming fluid flow through the placement of outlets of the same shape and size. The impurity gas entered at a speed of 5 meters per second vertically and was directed out through 3 outlets.

Sprays (DPM)

Sprays have a wide range of industrial and domestic applications. The simulation of sprays has its specific settings and properties and can be counted as a unique category of simulations related to the DPM module.

Project number 8 simulates the process of Water Spray into a cubic space. The present study investigates the behavior of water flow during the spraying process from a very small circular section to the inner space of an area with a larger volume, which examines the behavior of water flow by tracing every particle.

In project number 9, Color Spraying on the wall has been simulated. We have 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. To put one step further, in project number 10, a similar project has been done considering a WALL FILM. The cone injection and particle velocity equal the first simulation 10 with a particle diameter of 0.001 m and a spray angle of 45 °. This project aims to determine whether velocity and particle diameter affect the staining. The velocity is 20 meters per second for the second simulation, and the particle diameter is 0.1m. Also, the cone angle is 45 degrees. The DPM Boundary condition type is wall film so that the color particles stick to the wall.

You can obtain Geometry & Mesh file and a comprehensive Training Movie that presents how to solve the problem and extract all desired results.