Design of experiments for gaining insights and validating modeling of turbulent combustion

Abstract

This chapter addresses some key issues for consideration in the design and development of experiments that provide a deeper understanding of combustion physics and become benchmarks for the validation of calculations. Close interaction between numerical and experimental approaches has proven to be a key ingredient in advancing the predictive capabilities. A good experiment (i) addresses one or more specific scientific issues, (ii) has well-defined boundary conditions, (iii) is amenable to advanced diagnostics (iv) provides a range of conditions to test trends as well as absolute quantities, (v) makes the detailed data available including information about the accuracy of the measurements, and (vi) responds to the changing needs of modelers as computational approaches change and evolve. A regime diagram for turbulent combustion is first introduced followed by a section that details a series of important considerations in the design and conduct of combustion experiments. The last section provides details of three key burners that stabilize flames spanning most of the turbulent combustion regime from premixed to non- premixed. Highlights and pitfalls in the design of these burners are addressed in some detail. © Springer Science+Business Media B.V. 2011.