论文信息 - Thermal flow measurements at Gr/Re2≫1 by silicon anemometry

Thermal flow measurements at Gr/Re2≫1 by silicon anemometry

We present the first characteristics of air flow measurements in the mixed convective region with strong buoyancy effects (Gr/Re/sup 2//spl Gt/1), using a thermal silicon double-Wheatstone-bridge vector sensor. The alternating direction method is applied to eliminate additive drift influences. The upper limit on the mixed convective region is experimentally defined to be given by Gr/Re/sup 2/=[0.3-0.8]. Flow velocity measurements of down to 1 mm/s (Reynolds /spl ap/ 0.3) are realized with an accuracy better than 98%.

Anton F. P. van Putten | Maurice H. P. M. van Putten | Michael J. A. M. van Putten

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