Results 31 to 40 of about 3,071,655 (192)
Impact of the turbulence modeling approach on the accuracy of the fan noise level prediction
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018 The fan is the dominant source of noise for modern high bypass ratio aircraft engines. The article presents the results of investigating the influence of the approach to modeling the turbulence in modeling fan stage noise generation on the results of ...
K. R. Pyatunin, N. V. Arkharova
doaj +1 more source
Turbulence in the interstellar medium [PDF]
, 2014 Turbulence is ubiquitous in the insterstellar medium and plays a major role in several processes such as the formation of dense structures and stars, the stability of molecular clouds, the amplification of magnetic fields, and the re-acceleration and ...
Chian, A. C. -L. +9 more
core +2 more sources
Influence of the Reynolds Number on the Aerodynamic Performance of a Small Rotor
Aerospace, 2023 The use of small rotors has increased due their applications in drones and UAVs. In order to improve the global performance of these aerial vehicles, it is necessary to understand the aerodynamics of small rotors, since this is related to the global ...
Andres M. Pérez Gordillo +2 more
doaj +1 more source
RANS versus Scale Resolved Approach for Modeling Turbulent Flow in Continuous Casting of Steel
Metals, 2021 Numerical modeling is the approach used most often for studying and optimizing the molten steel flow in a continuous casting mold. The selection of the physical model might very much influence such studies. Hence, it is paramount to choose a proper model.
Jurij Gregorc +2 more
doaj +1 more source
Nested polyhedra model of turbulence [PDF]
Physical Review E, 2017 A discretization of the wave-number space is proposed, using nested polyhedra, in the form of alternating dodecahedra and icosahedra that are self-similarly scaled. This particular choice allows the possibility of forming triangles using only discretized wave-vectors when the scaling between two consecutive dodecahedra is equal to the golden ratio, and
openaire +4 more sources
Unified Modeling of Irradiance Scintillation for Laser Beams in Arbitrary Oceanic Turbulence
PhotonicsAccurate modeling of irradiance scintillation is important for evaluating underwater wireless optical communication (UWOC) systems operating in oceanic turbulence.
Bingyan Fu +5 more
doaj +1 more source
Effect of the Turbulence Modeling in the Prediction of Heat Transfer in Suction Mufflers [PDF]
, 2012 The well-grounded knowledge of the available numerical methods is of fundamental importance to get advantage of computational aided design. Concerning compressor development, the employment of Computational Fluid Dynamics is nowadays a must, however ...
Rodrigues, Tadeu Tonheiro, Link, Rodrigo
core +1 more source
Mathematics, 2023 Since Sir Osborne Reynolds presented the Reynolds-averaged Navier–Stokes (RANS) equations in 1895, the construction of complete closure for RANS equations has been regarded as extremely challenging.
Sungmin Ryu
doaj +1 more source
Modeling of magnetohydrodynamic turbulence [Elektronisk resurs]
, 2000 Conventional one-point turbulence closures have beenextended with an additional transported scalar for modeling ofmagnetohydrodynamic (MHD) turbulence. The new scalar, α ,captures the length scale anisotropy and tendency towardstwo-dimensionality, which ...
Widlund, Ola,
core +7 more sources
Average Turbulence Dynamics from a One-Parameter Kinetic Theory
Atmosphere, 2023 We show theoretically that the mean turbulent dynamics can be described by a kinetic theory representation with a single free relaxation time that depends on space and time.
Hudong Chen +3 more
doaj +1 more source