A Ferrofluid-Based Sensor To Measure Bottom Shear Stresses Under Currents And Waves. Data Set: Ferrofluids_Opt_2018_Didonfranceesco

The experimental calibration of the system for measuring bed shear stresses under currents was carried out at the Hydraulic Laboratory of the University of Catania. In this experimental campaign the magnet S0805 and S0808 were used. The tests were conducted for several bottom configurations (smooth bottom; thin sand d₅₀=0.24 mm; coarse sand d₅₀=0.56 mm; and mixed sand 70% thin sand and 30% coarse sand). The goals of such tests were: to study the effects of the type of magnets and to carry out a preliminary analysis the ferrofluid behavior over sandy bottom.本研究于卡塔尼亚大学（University of Catania）水力实验室完成了水流作用下底床切应力（bed shear stresses）测量系统的实验标定。 本次实验批次采用型号为S0805与S0808的磁铁。实验针对四类底床配置展开测试：光滑底床、细砂（中值粒径d₅₀=0.24 mm）、粗砂（中值粒径d₅₀=0.56 mm）以及70%细砂与30%粗砂组成的混合砂床。本次实验的目标为：探究不同型号磁铁对测量系统的影响，并针对铁磁流体（ferrofluid）在砂质底床上的运动特性开展初步分析。