de Lemos, On the definition of turbulent kinetic energy for flow in porous media, Int. Commun. Heat Mass Transfer 27 (2) (2000) 211- 220.Pedras, M.H.J., de Lemos, M.J.S., "On the definition of turbulent kinetic energy for flow in porous media", International Communications in ...
Turbulent kinetic energy refers to the energy associated with turbulent motion in a fluid flow, influencing the transport of sediments and the formation of eddies. AI generated definition based on: Computer Aided Chemical Engineering, 2022 About this pageSet alert Also in subject area: EngineeringDisc...
How We Can Define Kinetic Turbulent Energy In LES?What Difference Between Definition Of Kinetic Turbulent Energy In LES And RANS?June 30, 2014, 09:57 #2 FMDenaro Senior Member Filippo Maria Denaro Join Date: Jul 2010 Posts: 6,847 Rep Power: 73 Quote: Originally Posted by mohammad_me...
Static stability makes the buoyancy conversion term a sink in the budget of turbulence kinetic energy (TKE), such that turbulence is exclusively generated by shear – a stark contrast to convective conditions where both buoyancy and shear generation are a source of TKE. The SBL is commonly classi...
The reason for the nu and mu confusion is the definition of turbulent kinetic energy. Usually k is defined as turbulent kinetic energy per unit mass (turbulent kinetic energy is most often a misnomer). Whether k is the actual kinetic energy or kinetic energy per unit mass will determine wheth...
and the kinetic energy transfers from large to small vortices and vice versa59. The cascade of kinetic energy is a characteristic feature of turbulent flows and it contributes to the very definition of turbulence60,61. Steady, periodic and quasi-periodic laminar flows tend to conserve their kineti...
2 Velocimetric Detection of the TNTI As the TNTI definitionally decomposes a flow into its turbulent and non- turbulent parts, there are a few methods of detection which naturally present themselves when velocimetric data for the flowfield is available. Although advances in computing power have ...
Last but not least, dissipation rate of turbulent kinetic energy \(\epsilon\) is a main indicator of level of turbulence in the flow which can identify the general dynamics of the small eddies in the flow (see Eq. 1, \(\nu\) is the kinematic viscosity)32. However, the problem is ...
There is also a contribution to the total kinetic energy from the mean-turbulent products, but that part is an assumed to be very small and disappears after averaging. When averaging over a time window e′ becomes more representative for the overall flow and can be written as a sum of the...
[361] found RM to be the dominant mechanism in the deformation of the flame surface, while the shear-driven KH instability only contributed to a third of the total turbulent kinetic energy at any scale. The transition to detonation occurs at the end of a sequence of processes initiated by ...