Mg. Carvalho et Tl. Farias, MODELING OF HEAT-TRANSFER IN RADIATING AND COMBUSTING SYSTEMS, Chemical engineering research & design, 76(A2), 1998, pp. 175-184
TT he solution Of reactive flow problems with radiative heat transfer
requires a radiation model which is simultaneously accurate, fast and
compatible with the algorithm employed to solve the transport equation
s. In the present paper, a review of the most commonly used methods to
predict radiative heat transfer in combustion chambers is presented.
Among them, three methods that satisfy the above requirements are desc
ribed in more detail; namely the discrete transfer, the discrete ordin
ates and the finite volume method. Some examples of results obtained f
or simple test cases are presented where predictions obtained with som
e of the most well known models are compared. An important issue withi
n the radiation modelling domain is the evaluation of the radiative pr
operties of gases and particulate matter that are commonly found in th
e combustion products. Therefore, in the second part of the paper, the
problems related to the evaluation of the radiative properties of the
combustion products, i.e. participating gaseous species and particles
, are focused and the methods used to solve these problems are describ
ed.