Species Transport Training Package, Beginner Part 2

Description

Species Transport ANSYS Fluent CFD Simulation Training Package for BEGINNER Users

This training package includes 10 practical Species Transport exercises using ANSYS Fluent software. MR CFD suggests this package for BEGINNER users new to this module.

Combustion

Project number 1 simulates the vortex flame inside a combustion chamber. The combustion chamber has a cylindrical structure. The reactants, including fuel flow and airflow, enter the combustion chamber separately from four different inlet sections from the upper part. The products resulting from the reaction leave the combustion chamber’s bottom part.

The combustion chamber is one of the most widely used devices in the industry. Therefore, experts are working to improve the performance of the combustion chamber. In project number 2, a combustion chamber is simulated by STEADY Solver. The present combustion chamber has two air inlets. The air of the first inlet hits several blades (to circular the flow) and then enters the chamber; To create a better flame, the air from the second inlet does not enter the combustion chamber at first, instead of entering through the perforations in the combustion chamber. The fuel used in this combustion chamber is methane.

In project number 3, the combustion chamber is simulated in Transient mode. There are two steps of methane-air combustion, with six species involved in the reaction, namely: methane, Oxygen, nitrogen, water vapor, carbon dioxide, and carbon monoxide. The air mass flow inlet is 0.02 kg.s^-1  and the inlet air temperature is equal to 300 k. Mass fractions are .23 and .77 for Oxygen and nitrogen, respectively.

Parking Ventilation (Species Transport)

Project number 4 simulates the air conditioning inside the car park. In this project, a stacker parking is designed, with three floors and two cars located on two floors. The structure of this type of parking lot is such that there are moving platforms on which the cars are placed, and then these platforms with the car are lifted vertically up between the two columns and placed at a higher height so that the space under it, for Provide the next car park on the lower platform.

Project number 5 simulates the air conditioning inside the shuffle car park. In this project, shuffle parking is designed entirely, with three floors, and eight cars are located on its floors. In this type of parking, cars are parked in such a way that they have to act like a jigsaw puzzle to enter and exit; In this way, the space of a car is empty, and the cars can be parked or taken out of the park by moving the puzzle horizontally or vertically.

Coronavirus

Today, the whole world is facing one of the biggest and most fundamental human challenges called corona disease (Covid 19). This disease’s main and dangerous problem is its high contagious power from an illness to a healthy person. Based on the CFD methods, it is possible to simulate the release of coronavirus particles from the patient’s mouth during coughing done in project number 6.

Fuel Cell (Species Transport)

Project number 7 will simulate a fuel cell. The fuel cell used in this simulation is a type of polymer electrolyte membrane fuel cell (PEMFC). The model consists of two main cathode and anode segments, each of which has four layers, including a flow collector, a flow channel, a gas distribution area, and a catalytic section, and the space between the anode and cathode layers are filled by the polymer membrane. In addition, since in fuel cell modeling, various types of gases react, the species transport module is also automatically activated in the simulation.

Pollution

Project number 8 simulates pollution diffusion in a street canyon. In this modeling, an urban area is defined as the computational area of ​​the model; Thus, two rows of building blocks are created parallel to each other, and as a result, space is created between these two rows of building blocks, which is called a street canyon or an urban canyon.

Flare

Project number 9 simulates combustion in a gas flare system. The flare system, also known as a gas flare, is a combustion device used in industrial units such as oil and gas refineries and the production of oil and gas wells, especially on offshore platforms. Gas flares are responsible for burning the natural gases released during oil extraction in a completely controlled manner. During the oil extraction process, some natural gas accumulates on top of the oil in the reservoirs

Desalination (Species Transport)

Project number 10 investigates the performance of a solar still thermal desalination unit. The present model consists of a small chamber with a sloping glass surface at the top. The solar heat passes through the glass to the water’s surface in the enclosure and causes surface evaporation (applying a UDF for surface evaporation). The resulting vapor impacts the cold glass surface and undergoes a distillation process. Pure water from hot vapor distillation moves down the slope of the glass plate and discharges as pure water.