Results 21 to 30 of about 716,438 (286)
Journal of Physics, Conference Series, 2020 On the basis of the theory of stochastic equations and the theory of equivalence of measures, the flow in a plane jet is considered. As a result, in accordance with these theories, the analytical dependence for the critical Reynolds number and the ...
A V Dmitrenko
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Reynolds and froude number effect on the flow past an interface-piercing circular cylinder
International Journal of Naval Architecture and Ocean Engineering, 2014 The two-phase turbulent flow past an interface-piercing circular cylinder is studied using a high-fidelity orthogonal curvilinear grid solver with a Lagrangian dynamic subgrid-scale model for large-eddy simulation and a coupled level set and volume of ...
Koo Bonguk +3 more
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Effect of surface design on drag properties of soccer balls
Nihon Kikai Gakkai ronbunshu, 2023 The paper describes the critical Reynolds number of soccer balls as a function of the total groove volume on the ball surface. In this study, the aerodynamic drag and separation point of 6 soccer balls with different panel orientations were measured in a
Kaito TADA +3 more
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Mathematics, 2023 The incompressible laminar isothermal flow of a Newtonian fluid at steady state around a surface-mounted rib is studied in a three-dimensional (3D) numerical experiment.
Vassilios N. Laskos +3 more
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The critical layer in pipe flow at high Reynolds number [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2008 We report the computation of a family of travelling wave solutions of pipe flow up to Re =75 000. As in all lower branch solutions, streaks and rolls feature prominently in these solutions. For large Re , these solutions develop a critical layer away from the wall.
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Shui kexue jinzhan, 2021 In order to determine erosion-limited conditions and the suitability of hydraulic parameters in sheet erosion of loess gentle slope, simulated rainfall test was used in this study, under condition of 60 mm/h rainfall intensity, 3 slopes (7.5°, 10°, 15 ...
Jijun HE +4 more
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Phenomenology of a flow around a circular cylinder at sub-critical and critical Reynolds numbers [PDF]
Physics of Fluids, 2016 In this work, the flow around a circular cylinder is investigated at Reynolds numbers ranging from 79 000 up to 238 000 by means of a combined acquisition system based on Temperature Sensitive Paint (TSP) and particle velocimetry. The proposed setup allows simultaneous and time-resolved measurement of absolute temperature and relative skin friction ...
Capone Alessandro +3 more
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Effects of the Reynolds Number on the Efficiency and Stall Mechanisms in a Three-stage Axial Compressor [PDF]
Journal of Applied Fluid MechanicsThe Reynolds number (Re) is an important parameter that can affect compressor performance. This study experimentally and numerically investigated the effect of Re variations on the efficiency and stall mechanisms for a three-stage axial flow compressor ...
E. Zhou +5 more
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Unsteady forces on a circular cylinder at critical Reynolds numbers [PDF]
Physics of Fluids, 2014 It is well known that the flow past a circular cylinder at critical Reynolds number combines flow separation, turbulence transition, reattachment of the flow, and further turbulent separation of the boundary layer. The transition to turbulence in the boundary layer causes the delaying of the separation point and an important reduction of the drag force
Lehmkuhl Barba, Oriol +4 more
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Sensors, 2021 In this contribution, three methodologies based on temperature-sensitive paint (TSP) data were further developed and applied for the optical determination of the critical locations of flow separation and reattachment in compressible, high Reynolds number
Marco Costantini +3 more
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