Results 21 to 30 of about 22,707 (244)

Heat Transfer Enhancement of Impingement Cooling by Adopting Circular-Ribs or Vortex Generators in the Wall Jet Region of A Round Impingement Jet

International Journal of Turbomachinery, Propulsion and Power, 2020
In the near future, when designing and using Double Wall Airfoils, which will be manufactured by 3D printers, the positional relationship between the impingement cooling nozzle and the heat transfer enhancement ribs on the target plate naturally becomes ...
Ken-Ichiro Takeishi, Robert Krewinkel, Yutaka Oda, Yuichi Ichikawa   +3 more
doaj   +1 more source

Cooling of rocket plume using aqueous jets during launching

Engineering Applications of Computational Fluid Mechanics, 2022
With an increase in rocket motor thrust, the thermal loads on the launch platform by the impingement exhaust jet are significantly increased, this poses serious safety risks to rocket launch.
Zhitan Zhou, Yiying Bao, Peijie Sun, Yiqing Li   +3 more
doaj   +1 more source

Dynamic wetting and heat transfer during droplet impact on heated bi-phobic wettability-patterned surfaces

, 2020
This paper reports the dynamic wetting behavior and heat transfer characteristics for impinging droplets on heated bi-phobic surfaces (superhydrophobic matrix with hydrophobic spots).
Qi, Wenliang, Weisensee, Patricia B.
core   +1 more source

Impingement Density Analysis on Heat Transfer and the Appearance of Edge Cracks in Conventional Slab Using Hydraulic Nozzles

Metals, 2022
In this work, the fluid dynamics and heat transfer of two hydraulic nozzles used in the secondary cooling of the conventional slab continuous casting machine were analyzed.
Alfonso Ruiz-Pineda, Alicia Aguilar-Corona, Constantin Alberto Hernández-Bocanegra, José Ángel Ramos-Banderas, Gildardo Solorio-Díaz, Romeo Omar Preciado-Martínez   +5 more
doaj   +1 more source

Deposition of particle pollution in turbulent forced-air cooling [PDF]

, 2020
Rotating fans are the prevalent forced cooling method for heat generating equipment and buildings. As the concentration of atmospheric pollutants has increased, the accumulation of microscale and nanoscale particles on surfaces due to advection-diffusion
Stafford, Jason, Xu, Chen
core   +3 more sources

Cooling Characteristic of a Wall Jet for Suppressing Crossflow Effect under Conjugate Heat Transfer Condition

Aerospace, 2022
The leading edge is the critical portion for a gas turbine blade and is often insufficiently cooled due to the adverse effect of Crossflow in the cooling chamber.
Qinghua Deng, Huihui Wang, Wei He, Zhenping Feng   +3 more
doaj   +1 more source

Annular synthetic jet used for impinging flow mass-transfer [PDF]

, 2003
An annular synthetic jet was investigated experimentally, both with and without an opposing impingement wall. The experiments involved smoke visualization and mass transfer measurement on the wall by means of naphthalene sublimation technique.
Amitay, Garimella, Glezer, Glezer, Goldstein, Herman, Kline, Lepičovský, Martin, Smith, Smith, Tensi, Tesař, Trávnı́ček, Václav Tesař, Zdeněk Trávnı́ček   +15 more
core   +1 more source

Solar Photovoltaic Thermal Cells Performance Improvement using Jet, Phase Change Material and Nanoparticles Cooling Technology: A review [PDF]

Engineering and Technology Journal
The cooling of solar photovoltaic (PV) cells is reviewed in this study. The critical analysis aims to increase PV cell life span and electrical efficiency.
Mays Shaeli, Monier Baccar, Jalal Jalil
doaj   +1 more source

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

Advanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang, Kun‐Hao Yu, Ji Yoon Bae, Yunchan Lee, Dorit Aviv, Shu Yang   +5 more
wiley   +1 more source

Conjugate heat transfer analysis on composite cooling structure with low Reynolds number using the decoupling method

Case Studies in Thermal Engineering
Composite cooling is a critical strategy for managing high temperatures in aero engine turbines. With the trend toward flying at unprecedented altitudes, the operational Reynolds number (Re) for turbines decreases significantly compared to conventional ...
Pingting Chen, Dingcheng Zhang, Haibin Liu, JunKui Mao   +3 more
doaj   +1 more source