scalar mixing
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scholarly journals Scalar mixing in homogeneous isotropic turbulence: A numerical study

2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Michel Orsi ◽  
Lionel Soulhac ◽  
Fabio Feraco ◽  
Massimo Marro ◽  
Duane Rosenberg ◽  
...  
Keyword(s):  
Isotropic Turbulence ◽  
Numerical Study ◽  
Scalar Mixing ◽  
Homogeneous Isotropic Turbulence

Turbulent scalar fluxes from a generalized Langevin model: Implications on mean scalar mixing and tracer particle dispersion

2021 ◽  
Vol 33 (3) ◽  
pp. 035101
Author(s):  
Bertrand Naud ◽  
Dirk Roekaerts
Keyword(s):  
Tracer Particle ◽  
Particle Dispersion ◽  
Scalar Mixing ◽  
Langevin Model ◽  
Scalar Fluxes

scholarly journals Search for π0 decays to invisible particles

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
E. Cortina Gil ◽  
◽  
A. Kleimenova ◽  
E. Minucci ◽  
S. Padolski ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Confidence Level ◽  
Branching Ratio ◽  
Standard Model Higgs Boson ◽  
Scalar Mixing ◽  
Upper Limit ◽  
Upper Limits ◽  
The Standard Model ◽  
Model Independent

Abstract The NA62 experiment at the CERN SPS reports a study of a sample of 4 × 109 tagged π0 mesons from K+ → π+π0(γ), searching for the decay of the π0 to invisible particles. No signal is observed in excess of the expected background fluctuations. An upper limit of 4.4 × 10−9 is set on the branching ratio at 90% confidence level, improving on previous results by a factor of 60. This result can also be interpreted as a model- independent upper limit on the branching ratio for the decay K+ → π+X, where X is a particle escaping detection with mass in the range 0.110–0.155 GeV/c2 and rest lifetime greater than 100 ps. Model-dependent upper limits are obtained assuming X to be an axion-like particle with dominant fermion couplings or a dark scalar mixing with the Standard Model Higgs boson.

scholarly journals Modeling One and Two Passive Scalar Mixing in Turbulent Jets Using One-Dimensional Turbulence

2021 ◽  
Author(s):  
M. Klein ◽  
C. Zenker ◽  
K. Hertha ◽  
H. Schmidt
Keyword(s):  
Turbulent Jets ◽  
Passive Scalar ◽  
Scalar Mixing ◽  
One Dimensional

On the modeling of scalar mixing timescale in filtered density function simulation of turbulent premixed flames

2020 ◽  
Vol 32 (11) ◽  
pp. 115130
Author(s):  
Tianwei Yang ◽  
Qing Xie ◽  
Hua Zhou ◽  
Zhuyin Ren
Keyword(s):  
Density Function ◽  
Premixed Flames ◽  
Scalar Mixing ◽  
Turbulent Premixed Flames ◽  
Filtered Density Function ◽  
Turbulent Premixed

Passive scalar mixing induced by the formation of compressible vortex rings

2020 ◽  
Vol 36 (6) ◽  
pp. 1258-1274
Author(s):  
Haiyan Lin ◽  
Yang Xiang ◽  
Hui Xu ◽  
Hong Liu ◽  
Bin Zhang
Keyword(s):  
Passive Scalar ◽  
Vortex Rings ◽  
Scalar Mixing

An Experimental Investigation of Scalar Mixing and Flame Structure of a Partially Premixed Flame

2020 ◽  
pp. 1-17
Author(s):  
Rajesh Sadanandan ◽  
Jens Brunzendorf ◽  
Michael Paul ◽  
Holger Grosshans ◽  
Detlev Markus
Keyword(s):  
Experimental Investigation ◽  
Flame Structure ◽  
Premixed Flame ◽  
Scalar Mixing ◽  
Partially Premixed ◽  
Partially Premixed Flame

scholarly journals Small transparent prism for the cross-sectional visualization for a turbulent scalar mixing layer using a water-channel PLIF method

2020 ◽  
Vol 1592 ◽  
pp. 012001
Author(s):  
Ryota Ukai ◽  
Hiroki Suzuki ◽  
Shisuke Mochizuki ◽  
Yasuhiko Sakai
Keyword(s):  
Water Channel ◽  
Mixing Layer ◽  
Scalar Mixing ◽  
Cross Sectional ◽  
The Cross
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