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Mechanism for accelerating heat release of combusting flows

  • US 5,076,053 A
  • Filed: 08/10/1989
  • Issued: 12/31/1991
  • Est. Priority Date: 08/10/1989
  • Status: Expired due to Term
First Claim
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1. A combustor having wall means defining a conduit for carrying field, oxidant, and combustion products in a downstream direction and for burning fuel and oxidant therein, said combustor including a separator plate disposed within said conduit, said plate having first and second opposed, downstream extending surfaces over which fluids within said conduit are adapted to flow, said plate having a downstream edge and a convoluted portion comprising a plurality of adjoining, alternating lobes and troughs extending downstream, each lobe and trough being smoothly U-shaped in cross section taken transverse to the downstream direction and blending smoothly with adjacent lobes and troughs, said lobes and troughs being spaced from said combustor wall means and terminating at said downstream edge, said lobe height and trough depth increasing continuously in the downstream direction to its maximum at said downstream edge, the contours and dimensions of said troughs and lobes being selected to ensure that each trough flows full and generates a pair of adjacent, large scale counterrotating vortices downstream of said edge within said conduit, each of said vortices rotating about an axis extending in the downstream direction, said combustor including means for creating and maintaining a recirculating flow region immediately adjacent and downstream of said downstream edge, said recirculation creating means including a step-wise increase in the cross-sectional flow area of said conduit immediately downstream of said downstream edge.

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