Results 301 to 310 of about 10,289,048 (317)

Passive scalars in turbulent channel flow at high Reynolds number

Journal of Fluid Mechanics, 2015
We study passive scalars in turbulent plane channels at computationally high Reynolds number, thus allowing us to observe previously unnoticed effects.
S. Pirozzoli, M. Bernardini, P. Orlandi
semanticscholar   +1 more source

Modeling Low Reynolds Number Incompressible Flows Using SPH

, 1997
The method of smoothed particle hydrodynamics (SPH) is extended to model incompressible flows of low Reynolds number. For such flows, modification of the standard SPH formalism is required to minimize errors associated with the use of a quasi ...
J. Morris, P. Fox, Yi Zhu
semanticscholar   +1 more source

Turbulent boundary layer statistics at very high Reynolds number

Journal of Fluid Mechanics, 2015
Measurements are presented in zero-pressure-gradient, flat-plate, turbulent boundary layers for Reynolds numbers ranging from $\mathit{Re}_{{\it\tau}}=2600$ to $\mathit{Re}_{{\it\tau}}=72\,500$ ( $\mathit{Re}_{{\it\theta}}=8400{-}235\,000$ ).
Margit Vallikivi, M. Hultmark, A. Smits
semanticscholar   +1 more source

Regimes of tonal noise on an airfoil at moderate Reynolds number

Journal of Fluid Mechanics, 2015
Tonal noise generated by airfoils at low to moderate Reynolds number is relevant for applications in, for example, small-scale wind turbines, fans and unmanned aerial vehicles.
S. Pröbsting, F. Scarano, S. Morris
semanticscholar   +1 more source

Direct numerical simulation of low-Reynolds-number flow past arrays of rotating spheres

Journal of Fluid Mechanics, 2015
Immersed boundary-lattice Boltzmann simulations are used to examine the effects of particle rotation, at low particle Reynolds numbers, on flows in ordered and random arrays of mono-disperse spheres.
Qiang Zhou, L. Fan
semanticscholar   +1 more source

Nonlinear Lift on a Triangular Airfoil in Low-Reynolds-Number Compressible Flow

, 2015
Numerical and experimental analyses of the aerodynamic performance of a triangular airfoil in low-Reynolds-number compressible flow are performed. This airfoil is one of the candidates for propeller blades on a possible future Martian air vehicle design.
Phillip M. Munday, K. Taira, Tetsuya Suwa, D. Numata, K. Asai   +4 more
semanticscholar   +1 more source

Optimal Length of Low Reynolds Number Nanopropellers.

Nano letters (Print), 2015
Locomotion in fluids at the nanoscale is dominated by viscous drag. One efficient propulsion scheme is to use a weak rotating magnetic field that drives a chiral object.
D. Walker, M. Kübler, K. Morozov, P. Fischer, A. Leshansky   +4 more
semanticscholar   +1 more source

Direct numerical simulation of moderate-Reynolds-number flow past arrays of rotating spheres

, 2015
Direct numerical simulations with an immersed boundary-lattice Boltzmann method are used to investigate the effects of particle rotation on flows past random arrays of mono-disperse spheres at moderate particle Reynolds numbers.
Qiang Zhou, L. Fan
semanticscholar   +1 more source

Effects of Mach Number and Specific Heat Ratio on Low-Reynolds-Number Airfoil Flows

, 2015
The effects of Reynolds number, Mach number, and gas species (air and CO2) on aerodynamic characteristics of a thin flat plate and a NACA 0012-34 airfoil were investigated under low-Reynolds-number (Re=0.43×104 to 4.1×104) and high-subsonic-flow (M=0.1 ...
M. Anyoji, D. Numata, H. Nagai, K. Asai
semanticscholar   +1 more source

Effects of magnetic Reynolds number on swimming of gyrotactic microorganisms between rotating circular plates filled with nanofluids

, 2020
Lijun Zhang, M. B. Arain, M. M. Bhatti, A. Zeeshan, H. Hal-Sulami   +4 more
semanticscholar   +1 more source