669 research outputs found
Large-eddy simulations of high Reynolds number jets with a suitable subgrid-scale model for solver dependency study
Large-eddy simulations are performed of a turbulent
round jet at Ma = 0.5 and 0.9. The solver dependency
is explored on computationally affordable
grids of 5 and 20 million grid points, by taking advantage
of the consistency of the subgrid-scale sigma-model.
Three different solvers are tested. With all three, the
computed mean and second-order fluctuating quantities
of the turbulent near field compare favorably with
measurements, for both Mach numbers and both grids,
showing the strength of the sigma-model in adapting to different
flow conditions and grid refinements
(Sp)-1-Diphenylphosphanyl-2-{(S)-[2-(diphenylphosphanyl)phenyl]hydroxymethyl}ferrocene
The absolute configuration of the title compound, [Fe(C5H5)(C36H29OP2)], is Sp at the ferrocene group and S at the asymmetric C atom. Both P atoms have a trigonal-pyramidal conformation. There is a short intramolecular C-H...P contact with an H...P distance of 2.56 Ã…. The hydroxy group is involved in an intramolecular O-H...[pi]phenyl interaction. The crystal packing shows five very weak intermolecular C-H...[pi] contacts, with H...Cg distances between 3.26 and 3.39 Ã… (Cg is the centroid of a phenyl or cyclopentadienyl ring). Key indicators: single-crystal X-ray study; T = 162 K; mean σ(C–C) = 0.004 Ã…; R factor = 0.038; wR factor = 0.083; data-to-parameter ratio = 22.3
Search for Light Dark Matter Interactions Enhanced by the Migdal Effect or Bremsstrahlung in XENON1T
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