A Wind Tunnel Study on Coat Fabrics Drag

10.6567/IFToMM.14TH.WC.PS20.001

A. Jeang；F. Liang；W. P. Chiu；Liao Jian Ping

Critical Reynolds number ； Fabrics

Proceedings of the 14th IFToMM World Congress

14th-5（2015 / 11 / 06）

552 - 562

英文

This research studies the critical Reynolds number of different fabric textures and weaves via wind tunnel experiments under a finite cylinder. Experimental conditions include a smooth cylindrical body and a variety of fabrics with different textures and weaves. Experiments using three‐axis load cell scan simultaneously measure instantaneous forces in three different directions. Furthermore, with the proper dimensions of the model, Reynolds number can reach 1x10^5 ~ 3.8x10^5, i.e. the range of the boundary layer transition region TrBL(Transition in boundary layer) [1] (2×10^5＜Re＜10^6).The appropriate ranges for different fabrics can be obtained from experimental results. The results of this study will help operators understand the effects of flow fields on fabric textures and weaves and provide a reference for relevant engineering designs.