Calculations the flow inside different types of can gas turbine combustion chamber

Abstract EN

The paper presents a mathematical model for three-dimensional, swirling, re-circulating turbulent flows inside a different types of can gas turbine combustion chamber.

The present model is restricted to single-phase, diffusion-controlled combustion, with radiation heat transfer.

The mathematical model comprises differential equations for: Continuity, momentum, stagnation enthalpy, concentration, radiation heat transfer, turbulence energy, its dissipation rate, and the mean square of concentration fluctuations.

The simultaneous solution of these equations by means of a finite-volume solution algorithm yields the values of the variables at all internal grid nodes.

the prediction procedure, composed of the mathematical model and its solution algorithm, is applied to predict the fields of variables within a representative can combustor; the results are compared with some workers.

The predicted results give the same trends as the measured ones, but the quantitative agreement is not always acceptable; this is attributed to the combustion process not being truly diffusion-controlled for the experimental conditions investigated by some workers