solve a contact drying model in matlab

To solve a contact drying model in Matlab, we need to first define the model and then use numerical methods to solve the resulting differential equations. Here's an example of a simple contact drying model:

main.m
% Define parameters
h = 0.01;          % step size
t = 0:h:1;         % time vector
L = 1;             % length of material
T = 100;           % temperature of hot air
C0 = 1;            % initial moisture content
K = 0.1;           % drying rate coefficient

% Define initial conditions
C = zeros(1,length(t));
C(1) = C0;

% Define differential equation
for i=1:length(t)-1
    dCdt(i) = -K*(T-100)*C(i)/(L*1000);
    C(i+1) = C(i) + h*dCdt(i);
end

% Plot results
plot(t,C)
xlabel('Time (s)')
ylabel('Moisture content')
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In this example, we define the parameters of the model (such as the step size h, the length of the material L, the temperature of the hot air T, and the drying rate coefficient K), as well as the initial moisture content C0. We then define the initial conditions for the moisture content C, and use a for loop to define the differential equation for the change in moisture content over time. Finally, we plot the results.

Note that there are many different types of contact drying models, so the specific differential equation and numerical method used will depend on the characteristics of the material being dried and the specific conditions of the drying process.