Numerical Simulation of Differential Molecular Diffusion Effects in a Hydrogen-rich Turbulent Jet Using LEM3D
Peer reviewed, Journal article
Published version
Permanent lenke
https://hdl.handle.net/11250/2652234Utgivelsesdato
2014Metadata
Vis full innførselSamlinger
- Publikasjoner fra CRIStin - SINTEF Energi [1633]
- SINTEF Energi [1757]
Sammendrag
The LEM3D stochastic model for numerical simulation of turbulent mixing is used to simulate differential molecular diffusion effects in an isothermal jet of hydrogen and Freon 22 issued into air. The computations are compared with a published experimental study of the flow configuration. Salient features of the measured results are reproduced qualitatively, but the absence of spatial variation of the smallest eddy motion in LEM3D omits the streamwise variation of this length scale in the experimental configuration, resulting in a systematic deviation from the experimental trend. A first-principles basis for incorporating this missing physics into LEM3D is described, indicating the path forward for physically based quantitative prediction of differential diffusion effects, and turbulent combustion phenomenology more generally, using LEM3D.
Tidsskrift
Energy Procedia
Med mindre annet er angitt, så er denne innførselen lisensiert som Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Beslektede innførsler
Viser innførsler beslektet ved tittel, forfatter og emneord.
-
Terrain-forced Wind and Turbulence and Optimization of Local Domains and Grids for Terrain-induced Turbulence Forecast
Sørli, Karstein; Rasheed, Adil (Research report, 2011)A study of mountain-forced wind, wind-shear and turbulence was conducted in order to reveal general characteristics of terrain-induced turbulence nearby airports in mountainous areas. Special studies of the topography close ... -
Turbulence and flow field alterations inside a fish sea cage and its wake
Pascal, Klebert; Su, Biao (Journal article; Peer reviewed, 2020-05)Measurements were performed inside and in the wake of a commercial salmon sea cage. The key instrumentation included the following: sea bottom-mounted acoustic Doppler current profilers providing continuous concurrent flow ... -
Effect of turbulence intensity on the performance of an offshore vertical axis wind turbine
Siddiqui, Muhammad Salman; Rasheed, Adil; Kvamsdal, Trond; Tabib, Mandar (Journal article; Peer reviewed, 2015)Offshore wind energy is one of the most competitive renewable energy resources available to us, which until now been under- exploited. Most of the problems associated with wind farm installation like land acquisition, low ...