Flow over Cyclist

Function 1 (Drag force vs Velocity)

% To Calculate Drag Force wrt velocity on Cyclist 
function [Fd1] = Force_on_cyclist_V_Fd(A,D)
% Input
Cd = 1.28; %drag coefficients considering shape to be flat plate shape
V = 1:20; %Velocity of cyclist in m/s^2

Fd1 = Cd*A*D*V.*V.*0.5;

plot(V, Fd1,\'color\',\'y\')
grid on
end

Function 2 (Drag force vs Drag Coefficient)

% To Calculate Drag Force wrt drag coefficients on Cyclist 
function [Fd2] = Force_on_cyclist_Cd_Fd(A,D)
% Input
Cd = 0.1:1.5; %drag coefficients considering shape to be flat plate shape
V = 20; %Random Velocity of cyclist in m/s^2

Fd2 = Cd.*A*D*V*V*0.5;

plot(Cd, Fd2,\'color\',\'r\')
grid on
end

Main Function

% To Calculate Drag Force on Cyclist 

% Input
A = 0.4; %frontal area in m^2
D = 1.2; %density of air in kg/m^3

hold on
Force_on_cyclist_V_Fd(A,D)
Force_on_cyclist_Cd_Fd(A,D)

Plot (Both are plotted on a single graph)

Yellow is showing Drag force vs Velocity

Red is showing Drag force vs Drag Coefficient