温度勾配を任意に設定できる過熱風洞の製作と性能評価

概要

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A heating unit was combined into the already existing small wind tunnel to be able to set arbitrary temperature gradients at the exit, and the performance evaluation of it was carried out. Measurements for the mean velocity and turbulent intensity fields were made under two different flow conditions as follows ; case A : the heating unit did not exist, case B : the heating unit existed but did not heat. Comparing the results obtained from case A and B, the mean velocity distributions were very similar, but for the turbulent intensity distributions, magnitude of the latter intensity was smaller than the former one'. Furthermore, uniform, positive and negative gradient distributions of mean temperature were formed at the exit of the wind tunnel.
秋田工業高等専門学校の論文
2003-02-28