- #1
Allamarein
- 11
- 0
Let's suppose I know every coefficients this script:
and
y1 alfa
y2 v
y3 A
y4 T
function dy=isaacsimply(s,y)
dy = zeros(4,1)
global ...
dy(1)=(Cd_for*q_inf*h*(sin(y(1)))^2+...
g*y(3)*(rho-rho_inf)*cos(y(1))...
+E*U_inf*sin(y(3)))/...
(-rho*y(3)*y(2)^2); %dalfa
d_alfa=(Cd_for*q_inf*h*(sin(y(1)))^2+...
g*y(3)*(rho-rho_inf)*cos(y(1))...
+E*U_inf*sin(y(3)))/...
(-rho*y(3)*y(2)^2);
dy(2)=(q_inf*y(3)*sin(y(1))*cos(y(1))*d_alfa...
-g*y(3)*(rho-rho_inf)*sin(y(1))+...
E*U_inf*cos(y(1))-...
pi*h*rho*beta*(y(2)-U_inf*cos(y(1)))^2-...
y(2)*E)/(rho*y(2)*y(3)); %dv
d_v= (q_inf*y(3)*sin(y(1))*cos(y(1))*d_alfa...
-g*y(3)*(rho-rho_inf)*sin(y(1))+...
E*U_inf*cos(y(1))-...
pi*h*rho*beta*(y(2)-U_inf*cos(y(1)))^2-...
y(2)*E)/(rho*y(2)*y(3));
dy(3)=(E-y(3)*rho*d_v)/(rho*y(2)); %dA
d_A=(E-y(3)*rho*d_v)/(rho*y(2));
dy(4)=(E*Cp*y(4)+Nu/d*k*C*(T_inf-y(4))...
-rho*y(2)*Cp*y(4)*d_A-rho*y(3)*Cp*y(4)*d_v)...
/(rho*y(3)*Cp*y(2)); % dT
This script solves the system.jpg?
and
y1 alfa
y2 v
y3 A
y4 T
function dy=isaacsimply(s,y)
dy = zeros(4,1)
global ...
dy(1)=(Cd_for*q_inf*h*(sin(y(1)))^2+...
g*y(3)*(rho-rho_inf)*cos(y(1))...
+E*U_inf*sin(y(3)))/...
(-rho*y(3)*y(2)^2); %dalfa
d_alfa=(Cd_for*q_inf*h*(sin(y(1)))^2+...
g*y(3)*(rho-rho_inf)*cos(y(1))...
+E*U_inf*sin(y(3)))/...
(-rho*y(3)*y(2)^2);
dy(2)=(q_inf*y(3)*sin(y(1))*cos(y(1))*d_alfa...
-g*y(3)*(rho-rho_inf)*sin(y(1))+...
E*U_inf*cos(y(1))-...
pi*h*rho*beta*(y(2)-U_inf*cos(y(1)))^2-...
y(2)*E)/(rho*y(2)*y(3)); %dv
d_v= (q_inf*y(3)*sin(y(1))*cos(y(1))*d_alfa...
-g*y(3)*(rho-rho_inf)*sin(y(1))+...
E*U_inf*cos(y(1))-...
pi*h*rho*beta*(y(2)-U_inf*cos(y(1)))^2-...
y(2)*E)/(rho*y(2)*y(3));
dy(3)=(E-y(3)*rho*d_v)/(rho*y(2)); %dA
d_A=(E-y(3)*rho*d_v)/(rho*y(2));
dy(4)=(E*Cp*y(4)+Nu/d*k*C*(T_inf-y(4))...
-rho*y(2)*Cp*y(4)*d_A-rho*y(3)*Cp*y(4)*d_v)...
/(rho*y(3)*Cp*y(2)); % dT
This script solves the system.jpg?