Large eddy simulation and experimental measurements of the near-field of a large turbulent helium plume

2004 ◽  
Vol 16 (6) ◽  
pp. 1866-1883 ◽  
Author(s):  
Paul E. DesJardin ◽  
Timothy J. O’Hern ◽  
Sheldon R. Tieszen
Keyword(s):  
Large Eddy Simulation ◽  
Near Field ◽  
Experimental Measurements ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Helium Plume

Large Eddy Simulation of GDI Single-Hole Flow and Near-Field Spray

2012 ◽  
Vol 5 (2) ◽  
pp. 620-636 ◽  
Author(s):  
Bizhan Befrui ◽  
Giovanni Corbinelli ◽  
Peter Spiekermann ◽  
Mark Shost ◽  
Ming-Chia Lai
Keyword(s):  
Large Eddy Simulation ◽  
Near Field ◽  
Single Hole ◽  
Eddy Simulation ◽  
Large Eddy

scholarly journals Entrained flow gasification. Part 3: Insight into the injector near-field by Large Eddy Simulation with detailed chemistry

Fuel ◽  
2018 ◽  
Vol 223 ◽  
pp. 164-178 ◽  
Author(s):  
Georg Eckel ◽  
Patrick Le Clercq ◽  
Trupti Kathrotia ◽  
Alexander Saenger ◽  
Sabine Fleck ◽  
...  
Keyword(s):  
Large Eddy Simulation ◽  
Near Field ◽  
Detailed Chemistry ◽  
Entrained Flow ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Entrained Flow Gasification ◽  
Insight Into

scholarly journals Large eddy simulation of sediment transport over rippled beds

2014 ◽  
Vol 1 (1) ◽  
pp. 755-801
Author(s):  
J. C. Harris ◽  
S. T. Grilli
Keyword(s):  
Sediment Transport ◽  
Large Eddy Simulation ◽  
Flow Model ◽  
Near Field ◽  
Ocean Engineering ◽  
Mean Flow ◽  
Eddy Simulation ◽  
Turbulent Statistics ◽  
Large Eddy ◽  
Wave Induced

Abstract. Wave-induced Boundary Layer (BL) flows over sandy rippled bottoms are studied using a numerical model that applies a one-way coupling of a "far-field" inviscid flow model to a "near-field" Large Eddy Simulation (LES) Navier–Stokes (NS) model. The incident inviscid velocity and pressure fields force the LES, in which near-field, wave-induced, turbulent bottom BL flows are simulated. A sediment suspension and transport model is embedded within the coupled flow model. The numerical implementation of the various models has been reported elsewhere, where we showed that the LES was able to accurately simulate both mean flow and turbulent statistics for oscillatory BL flows over a flat, rough bed. Here, we show that the model accurately predicts the mean velocity fields and suspended sediment concentration for oscillatory flows over full-scale vortex ripples. Tests show that surface roughness has a significant effect on the results. Beyond increasing our insight into wave-induced oscillatory bottom BL physics, models of sediment transport as sophisticated as the present coupled model have the potential to make quantitative predictions of sediment transport and erosion/accretion around partly buried objects in the bottom, which is important for a vast array of bottom deployed instrumentation and other practical ocean engineering problems.

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