<論文>室内回流式温度成層風洞の基本性能及び夏季晴天時の公園緑地の熱環境シミュレーション

概要

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A new wind tunnel has been designed to study the effects of thermal stratification on flow and diffusion in an urban area. Its operating performance was much better than that of previous systems due to newly designed temperature control systems composed of a re-heater and floor heating panels. The wind tunnel could create temperature gradients as strong as a bulk Richardson number equivalent to 0.57 and maintained stable layers in the test section. The thermal boundary layer in summer was developed by using the heating panels. The cooling panel with cold water simulated the cool surface zone in parks and green belts. When the cooling panel was set to the leeward of the heating panel, a large cooled air resion was generated on the cooling panel. It is expected that by simulating nocturnal cold air drainages occurred by the surface temperatures differences between parks and built-up areas, appropriate methods could be developed to keep the urban climate more comfortable in summer.
東京工芸大学の論文
2002-01-31