Research Article
Use of Multiquadric Functions for Multivariable Representation of the Aerodynamic Coefficients of Airfoils
Table 5
Changing the input data P(Re, α).
| | DAE-21 multiquadric functions versus piecewise linear multivariable interpolation | | Data | Lift coefficient | Drag coefficient | Pitching moment coefficient | | Multiquadrics | M.I. | Multiquadrics | M.I. | Multiquadrics | M.I. | | C(Re,α)(%) | REL.P.A(%) | REL.P.A(%) | C(Re,α) | REL.P.A(%) | REL.P.A(%) | C(Re,α) | REL.P.A(%) | REL.P.A(%) |
| | P(9,26) | C(9,15) | 2.60 | 2.62 | C(9,17) | 11.88 | 11.72 | C(9,25) | 1.76 | 1.59 | | P(5,51) | C(5,44) | 5.28 | 4.89 | C(5,30) | 15.71 | 16.07 | C(5,13) | 3.58 | 1.88 | | P(13,26) | C(13,16) | 1.75 | 1.76 | C(13,25) | 10.19 | 10.10 | C(13,25) | 1.19 | 1.19 | | P(9,51) | C(9,33) | 2.59 | 2.61 | C(9,32) | 11.09 | 11.19 | C(9,42) | 3.45 | 3.23 |
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