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Listar por palabra clave "Turbulent flows"

Mostrando ítems 1-7 de 7

DNS of a turbulent Couette flow at constant wall transpiration up to Re-tau=1000

Kraheberger, Stefanie; Hoyas, S; Oberlack, Martin (Cambridge University Press, 2018-01-25)

[EN] We present a new set of direct numerical simulation data of a turbulent plane Couette flow with constant wall-normal transpiration velocity V-0, i.e. permeable boundary conditions, such that there is blowing on the ...
High-order spectral simulations of theflow in a simplified urban environment

Torres Greus, Pablo (Universitat Politècnica de València, 2020-09-17)

[ES] El estudio de los flujos urbanos ha sido un campo de interés en la mecánica de fluidos moderna por ahora. Más de veinte años. El conocimiento de cómo se comporta un flujo de aire en las copas urbanas presenta muchas ...
Sensitivity study of resolution and convergence requirements for the extended overlap region in wall-bounded turbulence

Hoyas, S.; Vinuesa, Ricardo; Schmid, Peter; Nagib, Hassan (American Physical Society, 2024-08-05)

[EN] Direct numerical simulations (DNSs) are among the most powerful tools for studying turbulent flows. Even though the achievable Reynolds numbers are lower than those obtained through experimental means, DNS offers a ...
Towards extraction of orthogonal and parsimonious non-linear modes from turbulent flows

Eivazi, Hamidreza; Le Clainche, Soledad; Hoyas, S; Vinuesa, Ricardo (Elsevier, 2022-09-15)

[EN] Modal-decomposition techniques are computational frameworks based on data aimed at identifying a low-dimensional space for capturing dominant flow features: the so-called modes. We propose a deep probabilistic-neural-network ...
Turbulent plane Couette flow at moderately high Reynolds number

Avsarkisov, V.; Hoyas Calvo, Sergio; Oberlack, M.; García Galache, José Pedro (Cambridge University Press (CUP): STM Journals, 2014-07)

A new set of numerical simulations of turbulent plane Couette flow in a large box of dimension (20 pi h; 2h; 6 pi h /at Reynolds number. (Re-tau) = 125, 180, 250 and 550 is described and compared with simulations at lower ...
Utilizing indicator functions with computational data to confirm nature of overlap in normal turbulent stresses: Logarithmic or quarter-power

Nagib, Hassan; Vinuesa, Ricardo; Hoyas, S (American Institute of Physics, 2024-07)

[EN] Indicator functions of the streamwise normal-stress profiles (NSP), based on careful differentiation of some of the best direct numerical simulations (DNS) data from channel and pipe flows, over the range 550 < Re-tau ...
Visualización de estructuras en flujos turbulentos

González Ceballos, David (Universitat Politècnica de València, 2022-10-18)

[ES] En este trabajo se ha desarrollado un algoritmo programado en MATLAB que permite la identificación de estructuras turbulentas, su evolución y continuidad en el tiempo a través de datos obtenidos mediante simulaciones ...