Non-Premixed Combustion, ANSYS Fluent CFD Simulation Training
Price: $32
- The problem numerically simulates Non-Premixed Combustion using ANSYS Fluent software.
- We design the 3-D model by the Design Modeler software.
- We Mesh the model by ANSYS Meshing software, and the element number equals 11202.
- We use the Species Model to define the chemical reaction between fuel and oxidizer.
- We select the Non-Premixed Combustion because the fuel and oxidizer enter the chamber from separate paths.
Non-Premixed Combustion, ANSYS Fluent CFD Simulation Training
Price: $32
- The problem numerically simulates Non-Premixed Combustion using ANSYS Fluent software.
- We design the 3-D model by the Design Modeler software.
- We Mesh the model by ANSYS Meshing software, and the element number equals 11202.
- We use the Species Model to define the chemical reaction between fuel and oxidizer.
- We select the Non-Premixed Combustion because the fuel and oxidizer enter the chamber from separate paths.
Description
This simulation is about Non-Premixed Combustion via ANSYS Fluent software. We perform this CFD project and investigate it by CFD analysis.
In this project, a two-dimensional combustion chamber is designed in which air flow and fuel flow enter simultaneously from two different inlets with different flow rates.
The combustion process occurs when some air is combined with some hydrocarbon fuel to convert fuel energy into heat energy. After the combustion occurs, the products of chemical reactions leave the combustion chamber.
Airflow (consisting of N2 with a mass fraction of 0.767 and O2 with a mass fraction of 0.233) at a temperature of 300 K and mass flow rate of 1.19 kg/s, and fuel flow (consisting of CH4 with a mass fraction of 1 At a temperature of 300 K and a flow rate of 0.019 kg/s) enter the combustion chamber through two separate and independent inlets to combine the chemical reaction of combustion to occur.
The geometry of the present model is drawn by Design Modeler software. The model is then meshed by ANSYS Meshing software. The model mesh is unstructured, and 11202 cells have been created.
Non-Premixed Method
The Species model has been used in this numerical simulation to model the combustion and the chemical reaction. A non-premixed model has been used to define species composition.
In this type of combustion, fuel and oxidizer enter the reaction zone of the combustion chamber through separate paths; They do not mix (premix) before fully entering the combustion chamber.
The non-premixed combustion model defines the mixture fraction, which represents the mass fraction derived from the fuel flow. In other words, the mixture fraction is equivalent to the local mass fraction of fuel flow elements (such as C, H, etc.) in different species (such as CO2, H2O, O2, etc.).
Non-Premixed Conclusion
After simulation, 2D contours related to pressure, temperature, velocity, density, and mass fraction O2, CH4, H2O, CO2, N2, CO, and C2H6 are obtained.
Also, 2D pathlines inside the chamber are obtained. The results show that The combustion reaction occurred properly inside the combustion chamber.
As a result of the combustion reaction between the reactants (methane fuel and airflow), the products of the reaction, such as CO, CO2, H2O, etc., are produced.