Results 81 to 90 of about 22,777 (264)

Study in the Approach Prediction Ability of the Euler PDF Transport by Different Models of Turbulence

Chemical Engineering Transactions, 2018
The main objective of this study is the evaluation of the numerical capacity of the RANS-EPDF hybrid method, by comparing different turbulence models, with numerical simulations in a turbulent jet flame (hydrogen / air), using the method of Eulerian ...
Rouan Serik Habib, Abdelhamid Bounif, Mohamed Bouzit, Ahmed Amine Larbi   +3 more
doaj   +1 more source

Engineering Cyanobacteria for High‐Yield Photosynthetic Isoprene Production With Long‐Term Phenotypic Stability

Plant Biotechnology Journal, EarlyView.
Center: Cyanobacterial isoprene production from CO2 and sunlight. Top: CRISPR‐editing for generation of markerless production strains. Top right: Long‐term production assay for strain stability assessment. Bottom right: Engineering of MEP pathway and surrounding metabolism for bottleneck idenfication. Bottom left: Relief of bottleneck by overproduction
Kim N. Janssen, Paul Bolay, Adrian Tüllinghoff, Jörg Toepel, Daniel Spindler, Bruno Bühler, Pia Lindberg   +6 more
wiley   +1 more source

A Relational Perspective on Land in Armed Conflict: Analysing the Village Guard Mobilisation in Turkey

Studies in Ethnicity and Nationalism, EarlyView.
ABSTRACT This article examines the Turkish state's Village Guard system, revived in the 1980s as part of its counterinsurgency strategy against the Kurdistan Workers Party (PKK). While often framed as a defensive militia, the Village Guards became central to the state's exceptional governance in Kurdistan, both facilitating military control and ...
Francis O'Connor, Adnan Çelik, Ayhan Işık, Joost Jongerden   +3 more
wiley   +1 more source

Large-eddy Simulation of NASA LaRC Coaxial He-O2/Air Jet [PDF]

, 2007
Large-eddy simulation (LES) is conducted of a coaxial jet flow configuration. This configuration was previously considered in the laboratory experiments at the Hypersonic Air-breathing Propulsion Branch at the NASA Langley Research Center (LaRC).
Mohebbi, Mahdi
core  

Comparison of Combustion Models for Lifted Hydrogen Flames within RANS Framework

Energies, 2019
Within the framework of a Reynolds averaged numerical simulation (RANS) methodology for modeling turbulence, a comparative numerical study of turbulent lifted H2/N2 flames is presented.
Ali Cemal Benim, Björn Pfeiffelmann
doaj   +1 more source

Carbon‐based materials from renewable sources: Challenges and perspectives with a focus on green coconut

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 3, Page 477-493, March 2026.
Abstract This article presents a comprehensive examination of agricultural production, biomass generation, and its transformation into biochar, with a particular emphasis on green coconut waste as a primary resource. It underscores the link between agriculture and substantial biomass output, shedding light on the ecological issues associated with solid
Yslaine Andrade de Almeida, Iara de Fatima Gimenez, Ledjane Silva Barreto, Isis Nayra Rolemberg Prudente, Hericles Campos dos Santos   +4 more
wiley   +1 more source

Flow field and flame surface density of turbulent flames by simultaneous PIV/OH-PLIF measurements

Journal of Thermal Science and Technology, 2018
In this study, we have examined the flow field and the flame surface density in premixed combustion by simultaneous particle image velocimetry (PIV) and OH-planar laser induced fluorescence (OH-PIIF) measurements. Turbulent flames are formed in a cyclone-
Kazuhiro YAMAMOTO, Kenta YAMAMORI, Yasuo ASADA   +2 more
doaj   +1 more source

Vortex-induced extinction behavior in methanol gaseous flames: a comparison with quasi-steady extinction [PDF]

, 2000
Using a combination of HCHO planar laser-induced fluorescence and laser Doppler velocimetry measurements, the extinction behavior of methanol counterflow diffusion flames was examined experimentally under conditions in which the extinction was brought ...
Gomez, Alessandro, Kyritsis, D.C., Liñán Martínez, Amable, Santoro, Vito S.   +3 more
core   +2 more sources

Moth‐Wing‐Inspired Multifunctional Metamaterials

Advanced Materials, Volume 38, Issue 9, 12 February 2026.
This study develops a moth‐wing‐inspired heterogeneous metamaterial that achieves synergistic broadband sound absorption, mechanical energy dissipation, and thermal insulation within a lightweight architected framework. Combining bioinspired gradient design, genetic‐algorithm optimization, and additive manufacturing, the bionic heterogeneous acoustic ...
Haoran Pei, Hang Yang, Ning Zhang, Tian Li, Xinxin Wang, Miao Zhao, Shuwei Ding, Xin Wang, Qinniu Lv, Zijie Xu, Yinghong Chen, Xinwei Li, Wei Zhai   +12 more
wiley   +1 more source

Numerical Investigation of a Lifted Flame With Nonequilibrium Scalar Variance and Dissipation Rate Closure Model for Flamelet Generated Manifold

International Journal of Aerospace Engineering
Large eddy simulation (LES) of a turbulent lifted ethylene/nitrogen jet flame in highly-heated coflow is presented. Turbulent combustion modeling is performed by using the flamelet generated manifold (FGM) approach and presumed probability density ...
Zhengxin Lai, Wenyan Song, Qiuyin Wang
doaj   +1 more source