A free-fall water jet released from a spillway may cause significant scour on the downstream river reaches due to high dynamic pressures. Energy dissipators are generally used at of disperse energy jet. In case low air concentration, hit bed with pressure heads that can adjacent dam body. The stability problems To prevent phenomenon, cushion be practical tool reduce impact impingement area. thi...

This study presents a systematic analysis of wetted region due to cooling of aluminum plate by water spray impingement with respect to different water flow rates, spray nozzle heights, and subcooling. Unlike jet impingement, the wetting is not commenced upon spray impingement and there is a delay in wetness of hot test surface. After initiation, the wetting (black zone) progresses gradually to ...

Internal mist/steam blade cooling technology has been considered for the future generation of Advanced Turbine Systems (ATS). Fine water droplets of about 5 mm were carried by steam through a single slot jet onto a heated target surface in a confined channel. Experiments covered Reynolds numbers from 7500 to 25,000 and heat fluxes from 3 to 21 kW/m. The experimental results indicate that the co...

A numerical study using the conjugate heat transfer approach has been performed to investigate effects of boundary flux, conduction effect, and working fluid on thermal characteristics due jet impingement process. Air water are used in this as fluids. For jet, volume method is capture track interface multiphase flow. It found that wall may change fluid-solid interfacial compared with no or pure...

BACKGROUND AND PURPOSE 3DRA is considered the reference standard for the assessment of intracranial aneurysm morphology. However, it has been shown that 3DRA may overestimate neck size compared with 2D DSA. The purpose of this study was to determine the impact of neck size overestimation with 3DRA on intra-aneurysmal hemodynamics. MATERIALS AND METHODS In a series of 20 patients, 20 intracran...

The effect was clarified of the design parameters on heat transfer an impingement steam jet applied to continuous liquid food sterilization with aim high heating performance. study investigated effects and water Reynolds number, jet-to-target spacing diameter ratio, temperature Nusselt number. number defined based injection plate configurations in turbulent flow. at 120 °C greater than 125 130 ...