Cancellation exponents in helical and non-helical flows

Helicity is a quadratic invariant of the Euler equation in three dimensions. As the energy, when present helicity cascades to smaller scales where it dissipates. However, the role played by helicity in the energy cascade is still unclear. In non-helical flows, the velocity and the vorticity tend to...

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Detalles Bibliográficos
Autores principales: Imazio, P.R., Mininni, P.D.
Formato: JOUR
Materias:
Energy cascade
First-order
Forcing function
Helical flows
Helical structures
Helicities
Helicity cascades
Numerical simulation
Positive definite
Quadratic invariant
Scaling exponent
Statistical properties
Three dimensions
Computer simulation
Euler equations
Reynolds number
Fractal dimension
Eulerian analysis
flow velocity
numerical model
turbulent flow
vorticity
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00221120_v651_n_p241_Imazio
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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