Investigation and Engineering Modeling of Flame and Hot CurrentBehaviors formed on Slope Ground

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Flame behavior on the slope ground is one of the most important property for the fire safety engineering. We conducted a series of experiment to clarify the influence of the heat release rate and slope angle on the behaviors of flame and hot current and to develop the engineering model. We focused on the flame length (Lt), the flame attachment length (La), flame tilt angle (θ2), and flame standing height (Hf). We developed new dimensionless heat release rate (Q*slope), which can arrange the relation between flame standing height and heat release rate by a simple relation regardless of the shape of fire source and slope angle.