Numerical study for enhancement of laminar flow mixing using multiple confined jets in a micro-can combustor

• Published in: International journal of heat and mass transfer Vol. 46; no. 14; pp. 2655 - 2663
• Main Authors: Woodfield, Peter L, Nakabe, Kazuyoshi, Suzuki, Kenjiro
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.07.2003; Elsevier
• Subjects: Applied sciences; Energy; Energy. Thermal use of fuels; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc; Exact sciences and technology; Furnaces. Firing chambers. Burners; General. Equipment design. General computation; Mixing; Numerical analysis; Combustion chamber; Laminar flow; Finite volume method; Gas turbine; Mathematical model
• ISSN: 0017-9310; 1879-2189
• DOI: 10.1016/S0017-9310(03)00014-0

To meet demands arising as a result of present trends towards miniaturization, an innovative design for promoting mixing enhancement in a miniature can combustor is investigated using an unstructured finite-volume technique. A multi-holed baffle plate is employed to create a ring of oxidizer jets surrounding a single fuel jet in parallel with the axis of the cylindrical chamber. The baffle plate is found to produce a dramatic improvement to the mixing performance when compared with simpler co-axial jet cases. Relatively small changes in geometry are found to have a major influence on mixing for laminar isothermal flow.