Drag reduction
Review of Research on Vehicles Aerodynamic Drag Reduction Methods
... aerodynamic drag of vehicle and significant modification progress is still possible by reducing the mass, rolling friction or aerodynamic ...aerodynamic drag reduction that occurred in the test ...
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The effect of Reynolds number on turbulent drag reduction by streamwise travelling waves
... the drag reduction achieved on both opposition control and suboptimal control was reported as the Reynolds number was increased (Iwamoto et ...for drag reduction. This could provide a ...
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Drag Reduction Using Dielectric Barrier Discharge Plasma Actutor On Truck
... I declare that this study entitled “Drag Reduction using Dielectric Barrier Discharge Plasma Actuator on truck” is the result of my own research except as cited in the references. The study has not been ...
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Increasing Strickler coefficient by the drag reduction technique in open-channel flows
... The drag reduction method by polymer additives is generally used to reduce friction losses in pipes over long- ...the reduction of water depth led us to study experimentally the drag ...
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Skin friction drag reduction over staggered three dimensional cavities
... In a reversal of bio-inspired thinking it was thought that, if the riblet mechanism was effective then na- ture would have got there first and this triggered the idea that the mechanism might already be present on the ...
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Spike Effects on Drag Reduction for Hypersonic Lifting Body
... Considering the simplification and reliability of the drag reduction system, on the basis of Schulein’s self-aligning aerospike [31], a double flat faced disk aerospike with an installat[r] ...
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Drag reduction within radial turbine rotor passages using riblets
... This paper presents a detailed study of the impact of manufacturing residual riblets at the rotor hub surface of a radial inflow turbine on the flow within the rotor passages and their contribution to drag ...
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A Review Paper on Aerodynamic Drag Reduction and CFD Analysis of Vehicles
... performance of active and passive flow control on the vehicle aerodynamic drag reduction is reported in this paper. The review mainly focuses on the methods employed to prevent or delay air flow separation ...
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Drag reduction by using the microriblet of sawtooth and scalloped types
... the drag reduction and increasing the speed is demand of all ...the drag coefficient of simple flat plate with riblet one, it is concluded that riblets diminish drag force about 11% and raise ...
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Computational investigation of drag reduction on a rotationally oscillating cylinder
... an interesting boundary layer instability is observed which could explain the dramatic drag reduction previously noted in an experiment on this ow. Simulations are performed with a high-resolution viscous ...
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Study and development of the drag reduction system for go-kart
... go-kart Drag Reduction System (DRS) and test its performance in term of aerodynamics element (drag force, downforce, drag coefficient, downforce coefficient) using simulation software and ...
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Drag Reduction of an After Burner Flame Stabilizer in Passive Condition
... the drag generated by single ...of drag reduction due to flow interference and placing the bluff bodies upstream and downstream of the flame ...excess drag and pressure loss in the after ...
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OVERVIEW ON DRAG REDUCTION TECHNOLOGIES FOR CIVIL TRANSPORT AIRCRAFT
... The figure 14 presents the measured pressure distributions on the wing for two sections located at 62% and 85% of the span. The Mach numbers upstream to the shocks and the pressure gradients are clearly reduced. However, ...
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Turbulent skin friction drag reduction control by spanwise motion
... skin-friction drag reduction, and a series of parameter studies is going to be explored, the plasma body force model should be simple but also with an acceptable ...
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Drag Reduction and Secondary Flow Occurrence by Square Biplane Grid
... local drag coefficient and the flow visualization of path ...the drag coefficient of circular cylinders forming a biplane grid was much reduced compared to that of the single ...A drag ...
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A Review on CFD Analysis of Drag Reduction of a Generic Sedan and Hatchback
... century. From highest speed Hennessey Venom GT reaching up to 270.49 mph, Bugatti Veyron to the luxurious Rolls Royce phantom and much more. Depending on the customer’s choice , personal cars ranging from hatch backs, ...
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Stabilisation and drag reduction of pipe flows by flattening the base profile
... Significant drag reduction is also observed for the turbulent flow when triggered by sufficiently large ...and drag reduction predicted in the present study are an encouraging first step in ...
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Effectiveness of active flow control for turbulent skin friction drag reduction
... friction drag is of paramount importance in many engineering applications, including aerospace engineering, where the skin friction component is approximately one quarter of the total aircraft drag in ...
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Turbulent Drag Reduction by Spanwise Wall Oscillations
... a drag reduction has been investigated by previous ...turbulent drag reduction by transverse motions, including wall ...proposed drag reduction mechanisms, even though they ...
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Turbulent drag reduction through oscillating discs
... velocity, drag increase was also ...turbulent drag reduction by active wall forcing, the implementation of these techniques in industrial settings appears to be an insurmount- able ...Therefore, ...
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