Numerical Simulations of the Kinetic Energy Transfer in the Bath of a BOF Converter

2015 ◽  
Vol 47 (1) ◽  
pp. 434-445 ◽  
Author(s):  
Xiaobin Zhou ◽  
Mikael Ersson ◽  
Liangcai Zhong ◽  
Pär Jönsson
Keyword(s):  
Energy Transfer ◽  
Kinetic Energy ◽  
Numerical Simulations ◽  
Kinetic Energy Transfer

Spectrum of Kinetic Energy Transfer due to Large-Scale Horizontal Reynolds Stresses

Tellus ◽  
1960 ◽  
Vol 12 (1) ◽  
pp. 110-111 ◽  
Author(s):  
Barry Saltzman ◽  
Aaron Fleisher
Keyword(s):  
Energy Transfer ◽  
Kinetic Energy ◽  
Large Scale ◽  
Reynolds Stresses ◽  
Kinetic Energy Transfer

scholarly journals Direct Numerical Simulations to Investigate Energy Transfer between Meso- and Synoptic Scales

2018 ◽  
Vol 75 (4) ◽  
pp. 1163-1171 ◽  
Author(s):  
Masih Eghdami ◽  
Shanti Bhushan ◽  
Ana P. Barros
Keyword(s):  
Energy Source ◽  
Energy Transfer ◽  
Kinetic Energy ◽  
Numerical Simulations ◽  
Direct Numerical Simulations ◽  
Energy Spectra ◽  
Energy Sources ◽  
Synoptic Scale ◽  
2D Turbulence ◽  
Enstrophy Cascade

Abstract Understanding the development of the atmospheric energy spectrum across scales is necessary to elucidate atmospheric predictability. In this manuscript, the authors investigate energy transfer between the synoptic scale and the mesoscale using direct numerical simulations (DNSs) of two-dimensional (2D) turbulence transfer under forcing applied at different scales. First, DNS results forced by a single kinetic energy source at large scales show that the energy spectra slopes of the direct enstrophy cascade are steeper than the theoretically predicted −3 slope. Second, the presence of two inertial ranges in 2D turbulence at intermediate scales is investigated by introducing a second energy source in the meso-α-scale range. The energy spectra for the DNS with two kinetic energy sources exhibit flatter slopes that are closer to −3, consistent with the observed kinetic energy spectra of horizontal winds in the atmosphere at synoptic scales. Further, the results are independent of model resolution and scale separation between the two energy sources, with a robust transition region between the lower synoptic and the upper meso-α scales in agreement with classical observations in the upper troposphere. These results suggest the existence of a mesoscale feedback on synoptic-scale predictability that emerges from the concurrence of the direct (downscale) enstrophy transfer in the synoptic scales and the inverse (upscale) kinetic energy transfer from the mesoscale to the synoptic scale in the troposphere.

scholarly journals Spectral kinetic energy transfer in turbulent premixed reacting flows

2016 ◽  
Vol 93 (5) ◽  
Author(s):  
C. A. Z. Towery ◽  
A. Y. Poludnenko ◽  
J. Urzay ◽  
J. O'Brien ◽  
M. Ihme ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Kinetic Energy ◽  
Reacting Flows ◽  
Kinetic Energy Transfer ◽  
Turbulent Premixed
Sign in / Sign up

Export Citation Format

Share Document