講演1 回転流中における火炎の挙動と安定化(ガスタービン燃焼関連分野における最近の研究〜不安定な燃焼を安定させるには?,先端技術フォーラム)

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概要

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• A rotational motion of fluids plays an important role in gas turbine combustors. In this paper, flame behaviors and stabilization in rotating flows are briefly presented based on recent studies by the present author. From a fundamental viewpoint, characteristics of tubular flame established in a stretched, rotating flow field and flame movement in a vortex flow induced by the so-called vortex bursting mechanism are presented first, followed by presentation of tubular flame combustion for practical use. Premixed tubular flame combustion with a large-area laminar flame, rapidly-mixed type tubular flame combustion to prevent flame flashback, micro and large tubular flame burners, oscillatory combustion with high frequencies of circumferential acoustic mode, and NOx emission through different routes and their reduction methods are described.

• 2011-07-06

著者

• 石塚 悟

  広島大学

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