Abstract Many natural and engineering flows transport more than one scalar. Moreover, to study the scalar mixing therein, knowledge of velocity field is also essential. For this reason, present work describes development a three-wire thermal-anemometry-based probe simultaneously measure velocity, helium concentration, temperature in turbulent flows. It first demonstrated, both theoretically exp...

The present work focuses on the study of slugs occurring in a two-phase flow confined rectangular channel: conditions appearance and effect behavior. Three-dimensional numerical simulations have been carried out to examine superficial air velocity Volume Of Fluid model (VOF) is used track air-water interface. Validation obtained by comparing results simulated axial with experimental data determ...

The production of high-quality steel requires purging with argon to remove impurities, degas the molten metal, and optimize alloying process. However, sealing challenges in steelworks result variable losses. But accurate mass flow measurements are crucial for process optimization. This work investigates feasibility a ladle-based sensor system overcome these challenges. must address high gas vel...

Damage to red blood cells can be induced chemically, by osmosis or mechanically. The fluid mechanical effect can be related to the device design, its surface characteristics and to the degree of flow disturbance or turbulence caused by the device. Is generally accepted that the presence of high turbulent shear stresses generated in the flow fields of artificial devices are partially responsible...

In classical phase Doppler systems three detectors are commonly used to determine the particles size whatever, basically, this technique requires only two detectors. The third detector is in fact mainly used to overcome the 2 ambiguity on phase-shift measurements. In the present work an alternative solution is introduced which allows to keep the same accuracy and dynamic range of the size measu...

Abstract Experimental results on laminar-to-turbulent transition in a separated laminar boundary layer formed over flat plate an adverse pressure gradient are provided. Experiments have been performed for range of Reynolds numbers (1.4 − 2.4 · 10 5 ) and two freestream turbulence levels ( Tu =3.6 5.3%). The measurements mean fluctuating velocity profiles carried out at inlet to the test section...