High-resolution computed tomography of a turbulent reacting flow
- 356 Downloads
Computed tomography (CT) has the potential to greatly enhance our understanding of the turbulent flow structures, the combustion chemistry, and the interactions between the two, which challenge us in our attempts to understand and model the details of turbulent combustion. Here, we present high-resolution and fully three-dimensional measurements of the flame surface of a turbulent reacting flow. The CT-reconstructed images show the flame front, at a single instant in time, of a turbulent, premixed propane/air flame. The significance of this powerful experimental tool is to provide new insight into turbulent combustion, allowing for the development of cleaner burning, higher power, and more efficient combustors.
Laboratory space for this work was provided by the Mechanical Engineering Department at the University of New Hampshire in Durham, NH. Experimental hardware was provided by Ancona Research, Inc. of Wake Forest, NC.
- Bourguignon E, Kostiuk LW, Michou Y, Gökalp I (1996) Experimentally measured burning rates of premixed turbulent flames. In: 26th Symposium (International) on Combustion, pp 447–453Google Scholar
- Cant RS, Bray KNC (1988) Strained laminar flamelet calculations of premixed turbulent combustion in a closed vessel. In 22nd Symposium (International) on Combustion, pp 791–799Google Scholar
- Chomiak J (1990) Combustion: a study in theory, fact and application. Gordon and Breach Science Publishers, New York, pp 1–111Google Scholar
- Deans SR (1979) The radon transform. Wiley, New YorkGoogle Scholar
- Deschamps BM, Smallwood GJ, Prieur J, Snelling DR, Gülder ÖL (1996) Surface density measurements of turbulent premixed flames in a spark-ignition engine and a Bunsen-type burner using planar laser-induced fluorescence. In: 26th Symposium (international) on combustion, pp 427–435Google Scholar
- Floyd J, Heyes AL, Kempf AM (2009) Computed tomography of chemiluminescence (CTC): instantaneous measurements of a matrix burner. In: Proceedings of the 4th European combustion meeting, paper 810365Google Scholar
- Hult J, Omrane A, Nygren J, Kaminski CF, Axelsson B, Collin R, Bengtsson P-E, Alden M (2002) Quantitative three-dimensional imaging of soot volume fraction in turbulent non-premixed flames. Exp Fluids 33:265–269Google Scholar
- Ishino Y, Takeuchi K, Siga S, Ohiwa N (2009) Measurement of instantaneous 3D-distribution of local burning velocity on a turbulent premixed flame by non-scanning 3D-CT reconstruction. In: Proceedings of the 4th European combustion meeting, paper 810178Google Scholar
- Miles P, Gouldin FC (1987) Simultaneous measurements of flamelet position and gas velocity in premixed turbulent flames. Proc ASME-JSME Thermal Eng Joint Conf 1:187–193Google Scholar
- Upton TD, Ludman JE, Watt DW, Verhoeven DD (2001) Emission tomography for non-intrusive three-dimensional measurements of density, temperature, and chemical composition in rocket engine plumes. NASA Stennis Space Center, contract NAS13-99027, final reportGoogle Scholar
- Watt DW, Upton TD, Merry MC, Verhoeven DD (2000) Emission tomography of premixed hydrogen-air flames and hydrogen diffusion flames. In: Proceedings of the 9th international symposium on flow visualization, paper 314Google Scholar
- Watt DW, Upton TD, Verhoeven DD (2001) Spectroscopic emission tomography for propulsion diagnostics. In: Proceedings of the 39th AIAA aerospace sciences meeting and exhibit, paper 2001-0303Google Scholar