Project and Experiment-Based Fluid Dynamics Education
Abstract—This paper presents the project and experiment-based fluid dynamics education in Meisei University, a private institution in Tokyo, Japan. We pay attention not only to the basic engineering courses but also to the practical aspect of engineering experience. So, we prepare courses called the Projects from I to VI. The Projects I and II are designed for the first year, III and IV are designated for the second year, V and VI are prepared for the third year, respectively. Each supervisor is responsible for two of these projects every year. When students take the Project V and VI at the third year, we automatically assume that these students will join the lab of the project for the graduation thesis. We would like to show our experience in the Project I in the summer term, 2016. In this project, we introduce a traction flight vehicle called Cat Flyer. This is a kind of a kite towed by a car for example. This is very similar to parasailing, but flight is possible even on the roads. Experiments in mechanical engineering education are also very important, and we would like to explain our course on centrifugal pump, venture, and orifice. Although these are described in detail in the text books of fluid dynamics, it is still crucial to have practical experiments as a student.
Centrifugal compressor diffuser and the diffuser includes a centrifugal compressor
A centrifugal compressor diffuser, comprising: a wheel disposed downstream of the centrifugal Ye Lun cover side wall surfaces (58); and the shroud-side wall surface (58) disposed opposite hub side wall surface; base end portion fixed to the wheel cover a plurality of shroud-side blades on the side wall surface (58) (3) and a base end portion fixed to the hub hub-side side wall surface (4) of the wheel, the wheel cover flaps (3) and the hub side flaps (4) inlet angle different and wing distal portion height direction lower portion butted state combinations at least the inner and the tip portion and the hub-side blades (4) of the cover flaps in the wheel have been combined (3) of the distal portion undocked, comprising at least part of to fill the gap each connection member between the front end portion (5).
Frequency selective surface design for blinds applications
In this paper, the reconfigurable blind structure with frequency selective surfaces(FSS) for the building applications are presented. Frequency transmission characteristics for different angles of the proposed blind-FSSs are investigated and verified through simulation and measurement. The simulation results show that we can implement the reconfigurable blind-FSS for multiband wireless applications. To verify the proposed paper, two kinds of blind-FSSs, crossed dipole FSS and circular ring FSS are fabricated and measurements are performed for different angles. The proposed structure in this paper which is very simple, can be easily applied to any planar surface for wireless security applications at low cost.