Results 81 to 90 of about 74,712 (235)
The prediction of two-dimensional airfoil stall progression [PDF]
A generalized boundary condition potential flow calculation method was combined with a momentum integral boundary layer method and a base flow theory of separation to predict airfoil viscous-inviscid interference up to and beyond stall.
Gross, L. W.
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Numerical Airfoil Optimization Using a Reduced Number of Design Coordinates [PDF]
A method is presented for numerical airfoil optimization whereby a reduced number of design coordinates are used to define the airfoil shape. The approach is to define the airfoil as a linear combination of shapes.
Hicks, R. M., Vanderplaats, G. N.
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Applied SciencesTo address the limitations of existing wind turbine airfoil databases, the high computational cost, and low efficiency of noise prediction, this paper proposes a wind turbine airfoil noise prediction method based on generalized airfoil sets and residual ...
Quan Wang +3 more
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Boundary Layer Separation and Reattachment Detection on Airfoils by Thermal Flow Sensors
Sensors, 2012 A sensor concept for detection of boundary layer separation (flow separation, stall) and reattachment on airfoils is introduced in this paper. Boundary layer separation and reattachment are phenomena of fluid mechanics showing characteristics of ...
Peter Busche +4 more
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Flutter speed estimation using presented differential quadrature method formulation
Engineering Applications of Computational Fluid Mechanics, 2019 In this paper the flutter behavior of a typical wing is investigated. The study is performed by presented Deferential Quadrature Method (DQM). The aerodynamic part adopted Wagner functions to model subsonic regime.
Mohammad Ghalandari +3 more
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Objectives and approaches to research in turbine heat transfer are discussed. Generally, improvements in the method of determining the hot gas flow through the turbine passage is one area of concern, as is the cooling air flow inside the airfoil, and the
Rohde, J. E.
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Design of the low-speed NLF(1)-0414F and the high-speed HSNLF(1)-0213 airfoils with high-lift systems [PDF]
The design and testing of Natural Laminar Flow (NLF) airfoils is examined. The NLF airfoil was designed for low speed, having a low profile drag at high chord Reynolds numbers. The success of the low speed NLF airfoil sparked interest in a high speed NLF
Campbell, Richard L. +4 more
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Approximate and exact numerical integration of the gas dynamic equations [PDF]
A highly accurate approximation and a rapidly convergent numerical procedure are developed for two dimensional steady supersonic flow over an airfoil. Examples are given for a symmetric airfoil over a range of Mach numbers.
Lewis, T. S., Sirovich, L.
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Applied SciencesTo overcome the technical challenges of the multi-blade centrifugal fan, such as low efficiency and insufficient total pressure, the blades of the fan were optimally designed in this study.
Haonan Yin +4 more
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On the effect of leading edge blowing on circulation control airfoil aerodynamics [PDF]
In the present context the term circulation control is used to denote a method of lift generation that utilizes tangential jet blowing over the upper surface of a rounded trailing edge airfoil to determine the location of the boundary layer separation ...
Mclachlan, B. G.
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