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05_curve_fitting/data.csv

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Problem 2
Latest commit a951e0a Nov 17, 2017 History
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We can make this file beautiful and searchable if this error is corrected: It looks like row 17 should actually have 1 column, instead of 3. in line 16.
Data
Re(e-4) C_D
2 0.52
5.8 0.52
16.8 0.52
27.2 0.5
29.9 0.49
33.9 0.44
36.3 0.18
40 0.074
46 0.067
60 0.08
100 0.12
200 0.16
400 0.19
mu=1.78e-5;
V=linspace(4,40,1000);
D=23.5;
rho=1.3;
Re=rho*V*D/mu*1e-4;
Cd_int = interp1(data(:,1), (data(:,2), Re, 'spline');
Cd_int_pc = interp1(data(:,1), (data(:,2), Re, 'pchip');
plot(Re, Cd_int, Re, Cd_int_pc, data(:,1),data(:,2),'o','MarkerSize',10,LineWidth
legend('cubic','pchip','data')