Author
H. X. Chen
Bio: H. X. Chen is an academic researcher from University of Science and Technology of China. The author has contributed to research in topics: Wind tunnel & Hypersonic wind tunnel. The author has an hindex of 1, co-authored 1 publications receiving 28 citations.
Topics: Wind tunnel, Hypersonic wind tunnel, Wind gradient, Wind speed
Papers
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TL;DR: In this article, an experimental fire was generated by 250ml n-heptane on the floor center of a cube enclosure with two opposite vents on the walls, and the inside and outside gas temperature profiles at different vertical and horizontal locations were recorded by two thermocouple matrixes.
36 citations
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TL;DR: In this paper, the effect of varied blockage-fire source distances (rectangular cylinder shape) on the smoke layer thickness in a longitudinal ventilated tunnel was studied, and a series of experiments were conducted in a 1/6 model tunnel platform.
50 citations
TL;DR: In this paper, a set of experiments was conducted to study the influence of external wind on flame shapes of n-heptane pool fires in a long passage connected to a shaft.
41 citations
TL;DR: In this paper, a set of small-scaled experiments were carried out to investigate the influence of different longitudinal fire locations on maximum smoke temperature under the tunnel ceiling, and the results showed that unlike the critical ventilation velocity, the maximal smoke temperature was not obviously affected by longitudinal fire location.
Abstract: Summary
The critical ventilation velocity is almost the most well-investigated fire phenomenon in the tunnel fire research field whereas previous studies have always investigated it when the fire source is distant from the downstream tunnel exit. Fortunately, a recent study provided a set of data on the critical ventilation velocity for tunnel fires occurring near tunnel exits by small-scaled experiments, nevertheless, with a lack of further analysis. To demonstrate the relationship of the critical ventilation velocity and the distance between the fire and tunnel exit more explicitly and detailedly, a quantitative and graphical study was carried out and a correlation was presented in this paper. Inspired by this, a set of small-scaled experiments were carried out to investigate the influence of different longitudinal fire locations on maximum smoke temperature under the tunnel ceiling. Results show that unlike the critical ventilation velocity, the maximum smoke temperature was not obviously affected by longitudinal fire location. Copyright © 2014 John Wiley & Sons, Ltd.
38 citations
TL;DR: In this article, 20 sets of full-scale water mist fire suppression experiments were conducted to examine the impacts of water mist system on smoke temperature characteristics, including water mist activation time (denoted by t), working pressure (P), k-factor (K) and longitudinal wind speed.
38 citations
TL;DR: In this paper, the influence of cross wind on flame interaction and burning characteristics of two abreast liquid fuel fires was studied, and a series of burning experiments on transversely spaced heptane pools was performed.
35 citations