Results 61 to 70 of about 284,195 (304)

Analysis of the impact of the inlet boundary conditions in FDS results for air curtain flows in the near-field region [PDF]

, 2015
CFD results are discussed for planar jet flows, resembling configurations in use for air curtain flows in the context of smoke and heat control in buildings in case of fire. The CFD package FDS (Fire Dynamics Simulator), Version 6.0.1, is used.
Liu, Fang, Merci, Bart, Yu, Longxing
core  

The Study of Aerodynamics in Special Parts of a Road Tunnel Using Physical Model

Salāmat-i kār-i Īrān, 2005
Background and Aims: Ventilation of road tunnels, using jet fans possess a number of featuresresulting from pattern of air flow distribution near solid walls as well as mutual effect of jet fans,dependence of jet momentum (thrust of jet fans) on air flow
LA Masslov, H Kanani Moghaddam, MJ Jafari   +2 more
doaj  

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Resolving the shocked gas in HH54 with Herschel: CO line mapping at high spatial and spectral resolution [PDF]

, 2014
The HH54 shock is a Herbig-Haro object, located in the nearby Chamaeleon II cloud. Observed CO line profiles are due to a complex distribution in density, temperature, velocity, and geometry.
Benedettini, M., Bjerkeli, P., Black, J. H., Brinch, C., Cabrit, S., Herczeg, G., Justtanont, K., Kristensen, L. E., Larsson, B., Liseau, R., Nisini, B., Olofsson, G., Santangelo, G., Tafalla, M.   +13 more
core   +4 more sources

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

Advanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour, Prithwish Tarafder, Anton Wiberg, Huanyu Li, Johan Moverare, Patrick Lambrix   +5 more
wiley   +1 more source

Highly Variable Extinction and Accretion in the Jet-driving Class I Type Young Star PTF 10nvg (V2492 Cyg, IRAS 20496+4354) [PDF]

, 2012
We report extensive new photometry and spectroscopy of the highly variable young stellar object PTF 10nvg including optical and near-infrared time series data as well as mid-infrared and millimeter data.
Adam A. Miller, Alexei V. Filippenko, Aspin, Aspin, Banzatti, Bautista, Beck, Bloom, Bloom, Boley, Carpenter, Chen, Clarke, Clayton, Cody, Cody, Connelley, Covey, Doppmann, Edwards, Edwards, Espaillat, Findeisen, Flaherty, Goodson, Greene, Hamilton, Hartigan, Hillenbrand, Hinkley, Indebetouw, Isella, Jeffrey M. Silverman, John M. Carpenter, Joshua S. Bloom, Juhász, Justin R. Crepp, Kevin R. Covey, Kley, Lorenzetti, Lynne A. Hillenbrand, Miller, Miller, Morales-Calderón, Muzerolle, Muzerolle, Nomura, Philip S. Muirhead, Plavchan, Plavchan, Pueyo, Ralchenko, Rebull, Reipurth, Richards, Romanova, Romanova, Rosolowsky, S. Bradley Cenko, Sicilia-Aguilar, Smith, Steidel, Sullivan, Vorobyov, Wang, White, William J. Fischer, Xiao, Zhu, Zhu, Zhu   +70 more
core   +3 more sources

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

ENHANCED IMPINGEMENT JET COOLING OF GAS TURBINE WALL HEAT TRANSFER USING CFD CHT CODE: INFLUENCE OF WALL THERMAL GRADIENT WITH FIN AND DIMPLE OBSTACLES

Arid Zone Journal of Engineering, Technology and Environment, 2019
Gas turbine (GT) jet cooling using the regenerative or impingement jet backside cooling system is applicable to low NOx GT combustors and was investigated in the present work. The impingement heat transfer investigated is for the techniques where all the
A. M. El-Jummah, G. E. Andrews, J. E. J. Staggs   +2 more
doaj   +2 more sources

Effect of Co-Axial Flow Velocity on Soot Formation in a Laminar Jet Diffusion Flame under Microgravity

Journal of Thermal Science and Technology, 2007
To examine the effect of low co-axial flow on soot formation in a laminar jet diffusion flame, microgravity experiments have been conducted. The tested co-axial flow velocity range is 0-7.3 cm/s, which is very difficult to provide on the ground because ...
Byoung-Ho JEON, Osamu FUJITA, Yuji NAKAMURA, Hiroyuki ITO   +3 more
doaj   +1 more source

Active control of coaxial jet flames under different fuel compositions through manipulation of mixing process with miniature jet actuators

Journal of Thermal Science and Technology, 2020
The gaseous fuel-air coaxial jet flow and combustion under different fuel compositions are actively controlled through periodic excitation of the initial jet shear layer with arrayed miniature jet actuators equipped on the inner surface of the annular ...
Yu SAIKI, Masahiro KURODA, Kasumi NAKURA, Yojiro ISHINO   +3 more
doaj   +1 more source