抄録
We have experimentally investigated thermal fields in the near-field of a medium-size ethanol pool fire under confined ventilation conditions, which was generated in a compartment poorly ventilated by a mechanical system with a merger negative pressure. Special attention was paid to the impacts of the changes in organized motions (from puffing to meandering motions) with transition to ventilation controlled fire, which has been revealed with our previous studies. The temperature fluctuations measured with fine thermo-couples shows that the meandering motions yield the increase in temperature fluctuations in low frequency region which is smaller than that with puffing motion just above the center of pool.
