In this paper, periodic vortices are generated by a fluid passing cylindrical obstacle, d, near the micro-channel inlet. Two elastic pillars arranged on walls, and effect of pillar spacing heat transfer performance is studied using Arbitrary Lagrangian-Euler method. With 10d, small amplitude 2 ?m not conducive to generation vortices. The flexible vortex generator has higher efficiency lower pre...

To better understand the wake effects at low Reynolds numbers, large-eddy simulations of a 50% reaction low-pressure turbine stage and linear cascade with two different bar generators were carried out for chord number 50,000. For chosen front-loaded high-lift airfoil, endwall structures are stronger than more traditional mid-loaded moderate-lift airfoils. By comparing results generator results,...

Experimental and numerical studies of combustion process in a vortex flow device have been developed. The modelling part the study has performed by means ANSYS Fluent package. Fuel droplet trajectories pattern on their motions modeled function ?injection?. utilized k-? turbulence model. A special trend effect generator blade orientation gross It established that optimal performance (high air ex...

High heat flux dissipation from the Lithium-ion battery pack of hybrid electric vehicles is one major concerns in automotive sector, since it directly affects performance and may also lead to permanent failure. Among various thermal management systems, forced air cooling most favorable due its light weight, compactness, lower cost, design flexibility. In present work, a system with two types vo...

Abstract Vortex generator (VG) is a passive flow control technology, which can effectively inhibit separation. Recently, significant research efforts have been devoted to the study on application of VG in airfoil, wing/blade and aircraft separation inhibition. However, variable height distribution along wingspan still lacks. This focuses experimental investigation influence ramp aerodynamic cha...

Abstract Nanophotonic platforms such as metasurfaces, achieving arbitrary phase profiles within ultrathin thickness, emerge miniaturized, ultracompact and kaleidoscopic optical vortex generators. However, it is often required to segment or interleave independent sub-array metasurfaces multiplex vortices in a single nano-device, which turn affects the device’s compactness channel capacity. Here,...