This paper describes curtain airbag gas delivery system development work using CFD analysis. The objective of developing gas delivery system was to achieve uniform inflation and reasonable time to position for oblique pole test with 5 %ile female. CFD analysis has been conducted to design gas delivery system of 3 row curtain airbag. The gas delivery system consists of T-diffuser and flexible ga...

Here, we present a concept based on the realization that a complex medium can be used as a simple interferometer. Changes in the wavefront of an incident coherent beam can be retrieved by analyzing changes in speckle patterns when the beam passes through a light diffuser. We demonstrate that the spatial intensity correlations of the speckle patterns are independent of the light diffusers, and a...

Abstract Placing a diffuser around wind turbine can increase its power output, but not all mechanisms by which the alters aerodynamics have been investigated thoroughly. Here, we concentrate on one such mechanism: effect of finite number blades. In nearly blade element analyses turbines, effects are approximated Prandtl’s “tip loss factor” goes to zero at tip. We argue that this limiting behavi...

This paper establishes a mathematic model of CO2 two-phase ejector to investigate flow distribution in the components mixing chamber and diffuser. The suction was modeled using characteristic line method describe development process supersonic expansion wave, chamber, as well diffuser models, were built based on double-flow model. reliability verified by experimental data. distributions paramet...

Aerodinamika dapat memberikan perubahan kecil untuk mengurangi konsumsi bahan bakar kendaraan. Modifikasi bodi kendaraan adalah salah satu metode pengurangan hambatan aerodinamika. Penelitian ini bertujuan menganalisa pengaruh penambahan sudut diffuser pada belakang model referensi yang disederhanakan (Ahmed Body slant angel 35°) digunakan mewakili tipe hatch back terhadap koefisien drag. Tiga ...

This paper aims to propose a novel approach the algorithmic design of Schroeder acoustic diffusers by employing deep learning optimization algorithm and fitness function, which are based on computer simulation propagation waves. The method employed for research consists policy gradient algorithm. It is used as tool carrying out sequential process, seeks maximize function parameters characterizi...