 Two distinct types of FAI: Cam and rim or pincer impingement.  Pincer impingement is believed to result from abnormal extensión/contact (Bony prominence) of the anterior and/or posterior walls or acetabular roof relative to the center of the femoral head, causing an abutment of the acetabular rim against the femoral head-neck junction.  The term pincer impingement was defined in 2003 by Gan...

The demand for increased turbomachinery performance, both, towards higher pressures and temperatures, leads to high thermal-loads of specific components can critically affect mechanical integrity. In the particular case rotating-disk configurations, like back-side wheels or in cavities, a very efficient way cooling is jet impingement. An example this situation are pressure-ratio turbochargers, ...

Thermal management at a high heat flux is crucial for high-power electronic devices, and jet impingement cooling promising solution. In this paper, hybrid sink combining microchannel was designed, fabricated tested in closed-loop system with R134a as the working fluid. The thermal contact resistance measured by using steady-state method, of obtained different fluxes flow rates. maximum dissipat...

This paper is concerned with aspects of gasoline spray droplet impingement simulation, for which an improved model has been developed for predicting the outcomes of spray droplets impacting on a wall. The model is assessed by simulating experiments on oblique spray impingement in a wind tunnel. This is done with the aid of a specially-devised procedure for deducing the specification of initial ...

A numerical study has been carried out for slot air jet impingement cooling of horizontal concentric circular cylinders. The slot air jet is situated at the symmetry line of a horizontal cylinder along the gravity vector and impinges on the bottom of the outer cylinder which is designated as θ=0°. The outer cylinder is partially opened at the top with a width of W=30mm and is kept at constant t...