As natural gas production and usage continues to increase, displacing oil and coal, there is an escalating requirement to ensure that natural-gas burning equipment performs as cleanly and efficiently as possible to allow the environmental advantages of this fuel to be realised. In addition to the development of new efficient technologies such as the low-swirl burner, the need for accurate predicting techniques of such equipment to aid the design and optimisation processes has never been more to the fore. Presented are encouraging results obtained from the three-dimensional, elliptic, CMC modelling of a low-swirl-stabilised non-premixed flame of methane, which is representative of the aforementioned technologies. Calculations were based upon the solution of the three-dimensional fluid -flow equations supplemented with a Reynolds stress and scalar flux second-moment turbulence closure.
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