1989
DOI: 10.2514/3.10321
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Essential ingredients of a method for low Reynolds-number airfoils

Abstract: A calculation method for low-Reynolds-number flows is described and appraised in terms of comparisons between calculations and measurements. It comprises interaction between solutions of inviscid-and boundarylayer equations and involves the e n method to determine the location of the onset of transition with further interaction to insure that upstream effects of the turbulent-flow region are correctly represented. The importance of the length of the transition region, which usually occurs within a separation b… Show more

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Cited by 56 publications
(15 citation statements)
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“…Through wind tunnel and flight testing, a number of empirical formulations and transition prediction methods have been established, although a model which incorporates all variables is not yet available. Research tools currently used to predict transition include the Linear Stability Theory (e n method), parabolised stability equations (PSE) and Direct Numerical Simulation (DNS); however, these are limited and are not frequently used to predict the effect of isolated roughness [29][30][31][32][33]. Other complex models, developed by experimentalists, can be found in references [34][35][36][37][38][39][40], and will not be detailed here.…”
Section: Critical Height To Transitionmentioning
confidence: 99%
“…Through wind tunnel and flight testing, a number of empirical formulations and transition prediction methods have been established, although a model which incorporates all variables is not yet available. Research tools currently used to predict transition include the Linear Stability Theory (e n method), parabolised stability equations (PSE) and Direct Numerical Simulation (DNS); however, these are limited and are not frequently used to predict the effect of isolated roughness [29][30][31][32][33]. Other complex models, developed by experimentalists, can be found in references [34][35][36][37][38][39][40], and will not be detailed here.…”
Section: Critical Height To Transitionmentioning
confidence: 99%
“…Hence obtaining the results of power generation, aerodynamic efficiency, fuel efficiency leads to further investigation [4]. The study from various researchers states that there is a reduction in the boundary layer interaction because of the flow separations over the novel wing where the rotation of the blade takes place in the anticlockwise direction hence increase in the velocity at the upper surface of the wing [4] [5] [14]. The variation of the velocities for the different angle of attack over the slotted rotor wing are detailed in this work.…”
Section: Turbine Designmentioning
confidence: 99%
“…A systematic experimental test has been carried out to understand the influence of velocity flow at different angles of attack over the novel wing [5] [20]. Hence obtaining the results of power generation, aerodynamic efficiency, fuel efficiency leads to further investigation [4]. The study from various researchers states that there is a reduction in the boundary layer interaction because of the flow separations over the novel wing where the rotation of the blade takes place in the anticlockwise direction hence increase in the velocity at the upper surface of the wing [4] [5] [14].…”
Section: Turbine Designmentioning
confidence: 99%
See 1 more Smart Citation
“…Therefore the initial objective of this research is to determine the level of degradation in the aerodynamic characteristics at low Reynolds numbers [1][2][3][4][5][6] of these imperfections in the manufacture, and determine whether there may be a value for which it would not be necessary to correct them.…”
Section: Introductionmentioning
confidence: 99%