Sign-up for free online course on ANSYS simulations!Author: Lara Backer, Cornell University - taken from ANSYS Inc. tutorial
Problem Specification
1. Pre-Analysis & Start-Up
2. Geometry
3. Mesh
4. Physics Setup
5. Numerical Solution
6. Numerical Results
7. Verification & Validation
Exercises
Comments
Partially Premixed Combustion
Created using ANSYS 14.5
Problem Specification
In this tutorial, you will learn how to set up and solve a turbulent reactive flow - particularly, a partially premixed combustion case. You will:
- Use the probability density function (PDF) method for modeling the chemistry in the system
- Learn the appropriate inputs and solver techniques using the turbulent Zimont Flame Speed model to close the turbulent quantities in the fluid equations
- Analyze the results of the system
The Zimont turbulent flame speed model includes the laminar flame speed (which determines the chemistry of the system) and the flame front evolution due to turbulence. The assumption to use this model is that the turbulence lengthscale in the flame is smaller than the flame thickness (Karlovitz number Ka > 1) where
Unknown macro: {latex}
Ka = (\nu \epsilon)^
Unknown macro: {1/4}
\over (U_flame)^2
