A square splittered and unsplittered rod is placed in a turbulent boundary layer developed over a flat plate. The effect of the resulting disturbances on the local heat transfer coefficient is then studied. In both cases the square rod modifies the flow structure inside the boundary layer. As a result, a stagnation point, a jet and wake area are generated around the square rod, each making a co...

Nano HA rod was synthesized by precipitation method using Ca(NO3)24H2O and (NH4)2HPO4 as starting materials and ammonia solution as an agent for pH adjustment. The Ca/P molar ratio was maintained at 1.67. Then, the effect of different pH (4, 6, 8, 10, 11), different surfactants and different times for dialyses on nano HA rod were studied in this study. The samples were characterized by differen...

The depth of electrodes inserted into the charge plays a vital role in controlling submerged arc furnace. Therefore, we used ultrasound waves reflected from electrode tip to estimate charge. However, graphite’s ultrasonic velocity and transmission loss are basis for establishing an measurement system. Thus, expected improve our understanding them through numerical simulations experimental measu...

Coffee harvesters utilize vibration systems to dislodge coffee beans. The system is usually coupled the end of an axis (rod cylinder). This cylinder can fail in field, which occurs by means cracks close its flange region that promotes vibration. Numerical simulations are typically used predict strains and stresses based on signals machines general. work acquired strain a harvester rod prototype...

To ensure the safety of bridges during horizontal rotation, we propose a method through which it is possible to evaluate stability structures in real time by measuring vibration acceleration rotating structure. First, characteristics collected rotation typical high-speed railway bridge were compared with results finite element analysis. Second, analytic formula calculate ratio and pier-bottom-s...