Results 11 to 20 of about 101,417 (300)
International Journal of Naval Architecture and Ocean Engineering, 2019 In order to provide a complementary perspective to the effects of the maneuvering motions on the unsteady propeller performance, the numerical simulation of the flow field of the hull-rudder- propeller system is performed by Unsteady Reynolds-averaged ...
Yu-cun Pan, Huai-xin Zhang, Qi-dou Zhou
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Experimental analysis of the pressure–velocity correlations of external unsteady flow over rocket launchers [PDF]
, 2013 Based on simultaneous wall pressure and velocity measurements, the aerodynamic load of a launcher body model is investigated. Two different configurations are considered in order to study the influence of geometrical artifacts on the after body flow and ...
DRUAULT, Philippe +3 more
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Unsteady Force and Pressure Measurements [PDF]
Annual Review of Fluid Mechanics, 1971 The solution to problems of the measurements of unsteady forces and pressures in fluid mechanics is discussed, particularly regarding the selection of measurement system. A number of examples of solution processes to various measurement problems are outlined.
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Clarification of Unsteady Fluid Forces Acting on Limbs in Swimming Using an Underwater Robot Arm
Journal of Fluid Science and Technology, 2012 The objective of this study was to clarify the unsteady characteristics of the fluid force acting on limbs during swimming. For this objective, an underwater robot arm, which has five degrees-of-freedom in order to perform the various complicated limb ...
Motomu NAKASHIMA, Akemi TAKAHASHI
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Fan noise and unsteady rotor forces [PDF]
The Journal of the Acoustical Society of America, 1987 The noise radiated by a subsonic, axial-flow fan at its rotational frequency and harmonics is related to the nonsteady force field created at the rotor blade/fluid interface. This force field is highly dependent on the time-invariant flow distortions that enter the fan.
Wen-Shyang Chiu +2 more
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Uncovering the physics of flapping flat plates with artificial evolution [PDF]
, 2005 We consider an experiment in which a rectangular flat plate is flapped with two degrees of freedom, and a genetic algorithm tunes its trajectory parameters so as to achieve maximum average lift force, thus evolving a population of trajectories all ...
Gharib, Morteza, Milano, Michele
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Unsteady aerodynamic forces on long lorry platoons [PDF]
Journal of Wind Engineering and Industrial Aerodynamics, 2021 Abstract In an earlier paper the authors describe an experimental investigation to measure the forces on 1/20th scale vehicles in long platoons, together with the flow field around the platoons, using the University of Birmingham moving model TRAIN rig facility, that can accommodate 8-vehicle platoons and provide a realistic ground simulation.
F.H. Robertson, D. Soper, C. Baker
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Effect of Virtual Mass Force on the Mixed Transport Process in a Multiphase Rotodynamic Pump
Advances in Mechanical Engineering, 2014 To explore the effect of virtual mass force, the unsteady two-phase flow in a multiphase rotodynamic pump impeller was numerically simulated, where the inlet gas void fraction was 4.9%, 14.9%, and 25.2%, respectively.
Zhiyi Yu +3 more
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Unsteady nanofluid flow over a cone featuring mixed convection and variable viscosity
Heliyon, 2023 This article addresses unsteady nanofluid flow over a cone with MHD and mixed convection effects. Effects of variable viscosity and viscous dissipation are also considered. The resulting system of equations is tackled through the Homotopy Analysis Method
Zubair Mustafa +3 more
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The force on a bubble, drop, or particle in arbitrary time-dependent motion at small Reynolds number [PDF]
, 1993 The hydrodynamic force on a body that undergoes translational acceleration in an unbounded fluid at low Reynolds number is considered. The results extend the prior analysis of Lovalenti and Brady [to appear in J. Fluid Mech.
Brady, John F., Lovalenti, Phillip M.
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