Combustion Chamber
Application ID: 143601
Inside of a combustion chamber, the gas mix behaves as a non-gray medium. Such media require a lot of data and computational resources to get results across the whole spectrum. The Weighted Sum of Gray Gases Model (WSGG) proposes an approach to model the non-gray gas mix as a sum of abstract gray gases, which represents, in total, the behavior of the gas mix integrated over the whole spectrum.
This model presents the WSGG functionality available in the Radiation in Participating Media physics interface, applied with the Discrete Ordinates Method (DOM). The WSGG coefficients represent a mix of water (H2O) and carbon dioxyde (CO2) resulting from the complete combustion of methane (CH4) in presence of oxygen (O2). They are given in:
J.S. Truelove, "The zone method for radiative heat transfer calculations in cylindrical geometries", HTFS Design Report DR33 (Part 1: AERE-R8167), Atomic Energy Authority, Harwell, 1975.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.