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Copy pathvpp_postprocessing.m
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vpp_postprocessing.m
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% [] = vpp_postprocessing(x)
function [] = vpp_postprocessing(x)
[wind,geom,phys,Rconf,conf] = vpp_load;
k = 0;
for i = 1:length(wind.V_tw)
for j = 1:length(wind.alfa_tw)
k = k+1;
V_tw = wind.V_tw(i);
alfa_tw = wind.alfa_tw(j);
V = x(1,i,j);
phi = x(2,i,j);
b = x(3,i,j);
F = x(4,i,j);
VMG = V * cos(alfa_tw*pi/180);
if isnan(V)
[Fdrive,Fside,Mheel,Ri,Rrh,RrhH,Rrk,RrkH,Rvh,RvhH,Rvk,Rvr] = ...
deal(NaN);
else
%aero calculation
[Fdrive,Fside,Mheel] = vpp_aero(x(:,i,j),geom,phys,V_tw,alfa_tw);
%hydro calculation
Ri = vpp_Ri(V,phi,Fside,geom,phys,Rconf.Ri);
Rrh = vpp_Rrh(V,geom,phys,Rconf.Rrh);
RrhH = vpp_RrhH(V,phi,geom,phys,Rconf.RrhH);
Rrk = vpp_Rrk(V,geom,phys,Rconf.Rrk);
RrkH = vpp_RrkH(V,phi,geom,phys,Rconf.RrkH);
Rvh = vpp_Rvh(V,geom,phys,Rconf.Rvh);
RvhH = vpp_RvhH(V,phi,geom,phys,Rconf.RvhH);
Rvk = vpp_Rvk(V,geom,phys,Rconf.Rvk);
Rvr = vpp_Rvr(V,geom,phys,Rconf.Rvr);
end
Rtot = Ri + Rrh + RrhH + Rrk + RrkH + Rvh + RvhH + Rvk + Rvr;
Rall(k,:) = real([Rrh+RrhH Rvh+RvhH Rrk+RrkH Rvk Ri Rvr]);
Rperc(k,:) = Rall(k,:)./Rtot;
data(k,:) = real([V_tw alfa_tw V VMG phi b F Fdrive Fside Mheel Rtot Rrh+RrhH Rvh+RvhH Rrk+RrkH Rvk Ri Rvr]);
end
end
%selecting best VMG
for ii = i:-1:1
[~,Iup(ii)] = max(data(j*ii-(j-1):j*ii,4));
[~,Idn(ii)] = min(data(j*ii-(j-1):j*ii,4));
Iup(ii) = Iup(ii) + j*(ii-1);
Idn(ii) = Idn(ii) + j*(ii-1);
tupwind(ii) = 100./data(Iup(ii) ,4);
tdnwind(ii) = -100./data(Idn(ii),4);
tcourse(ii) = tupwind(ii) + tdnwind(ii);
V1 = data(Iup(ii),3) + data(Iup(ii),1) .* cos(data(Iup(ii),2)*pi/180);
V2 = data(Iup(ii),1) .* sin(data(Iup(ii),2)*pi/180) .* cos(data(Iup(ii),5)*pi/180);
alfa_eff(Iup(ii)) = atan2(V2,V1)*180/pi;
V1 = data(Idn(ii),3) + data(Idn(ii),1) .* cos(data(Idn(ii),2)*pi/180);
V2 = data(Idn(ii),1) .* sin(data(Idn(ii),2)*pi/180) .* cos(data(Idn(ii),5)*pi/180);
alfa_eff(Idn(ii)) = atan2(V2,V1)*180/pi;
end
%saving data
fid = fopen('results.dat','w');
fprintf(fid,' :::: VPP results :::: \n');
fprintf(fid,' V_tw alfa_tw V VMG phi b F Fdrive Fside Mheel Rtot Rrh+RrhH Rvh+RvhH Rrk+RrkH Rvk Ri Rvr\n');
fprintf(fid,' [m/s] [deg] [m/s] [m/s] [deg] [m] [-] [N] [N] [Nm] [N] [N] [N] [N] [N] [N] [N]\n');
fprintf(fid,' %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f \n',data');
for ii = 1:i
fprintf(fid,'\n\n :::: Best VMG :::: \n');
fprintf(fid,' V_tw alfa_tw V VMG phi b F Fdrive Fside Mheel Rtot Rrh+RrhH Rvh+RvhH Rrk+RrkH Rvk Ri Rvr\n');
fprintf(fid,' [m/s] [deg] [m/s] [m/s] [deg] [m] [-] [N] [N] [Nm] [N] [N] [N] [N] [N] [N] [N]\n');
fprintf(fid,' %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f \n',data(Iup(ii), :)');
fprintf(fid,' %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f %9.2f \n',data(Idn(ii),:)');
fprintf(fid,'\n\n :::: Course Time (100 m) :::: \n');
fprintf(fid,' upwind %.2f [s]\n',tupwind(ii));
fprintf(fid,' downwind %.2f [s]\n',tdnwind(ii));
fprintf(fid,' total %.2f [s]\n',tcourse(ii));
end
fclose(fid);
save data
csvwrite('results.csv',data)
edit results.dat;
%% plotting data
close all
%%
ms2kt = 3600/1852;
n2lbf = 2.2/32.2/.3048;
figure('Name','V vs. alfa_tw')
for ii = i:-1:1
plot3(repmat(wind.V_tw(ii),1,j)*ms2kt,data(j*ii-(j-1):j*ii,2),...
data(j*ii-(j-1):j*ii,3:4)*ms2kt)
if ii == i
hold on
elseif ii == 1
hold off
end
end
grid on
set(gca,'YDir','Reverse')
legend('V','VMG')
xlabel('V_{tw}[kts]')
ylabel('\alpha_{tw}[deg]')
zlabel('kts')
%%
figure('Name','R vs. alfa_tw')
for ii = i:-1:1
plot3(repmat(wind.V_tw(ii),1,j)*ms2kt,data(j*ii-(j-1):j*ii,2),...
cumsum(Rall(j*ii-(j-1):j*ii,:)*n2lbf,2))
%100*Rperc(j*ii-(j-1):j*ii,:))
if ii == i
hold on
elseif ii == 1
hold off
end
end
grid on
set(gca,'YDir','Reverse')
legend('Hull - residuary','Hull - viscuos','Keel - residuary','Keel - viscous','Induced','Rudder - viscous')
xlabel('V_{tw}[kts]')
ylabel('\alpha_{tw}[deg]')
%zlabel('%')
zlabel('lbf')
%%
figure('Name','F vs. alfa_tw')
for ii = i:-1:1
plot3(repmat(wind.V_tw(ii),1,j)*ms2kt,data(j*ii-(j-1):j*ii,2),...
data(j*ii-(j-1):j*ii,8:9)*n2lbf)
if ii == i
hold on
elseif ii == 1
hold off
end
end
grid on
set(gca,'YDir','Reverse')
legend('Fdrive','Fside')
xlabel('V_{tw}[kt]')
ylabel('\alpha_{tw}[deg]')
zlabel('lbf')
%%
figure('Name','Polar')
polar(reshape(data(:,2),j,[])*pi/180,reshape(data(:,3),j,[])*ms2kt)
hold on
polar(reshape(data([Iup Idn],2),i,[])'*pi/180,...
reshape(data([Iup Idn],3),i,[])'*ms2kt,'*')
hold off
view(90,-90)
% legend(num2str(wind.V_tw'*ms2kt))
% h = legend(char(num2str(wind.V_tw'*ms2kt,'V_{tw} = %2.0f kts'),...
% num2str([alfa_eff(Iup);alfa_eff(Idn)]','alfa_{eff}=(%3.0f^o,%3.0f^o)')));
% set(h,'position',[0.05 .33 .4 .4])
legend(char(num2str(wind.V_tw'*ms2kt,'V_{tw} = %2.0f kts')),'Location','West')
for ii = 1:i
[tx,ty] = pol2cart(data(Iup(ii),2)*pi/180,data(Iup(ii),3)*ms2kt);
text(tx,ty,num2str([alfa_eff(Iup(ii)),data(Iup(ii),3)*ms2kt],'(%3.0f^o,%2.1f kt)'),...
'VerticalAlignment','Bottom','HorizontalAlign','Left','Fontsize',6)
[tx,ty] = pol2cart(data(Idn(ii),2)*pi/180,data(Idn(ii),3)*ms2kt);
text(tx,ty,num2str([alfa_eff(Idn(ii)),data(Idn(ii),3)*ms2kt],'(%3.0f^o,%2.1f kt)'),...
'VerticalAlignment','Top','HorizontalAlign','Left','Fontsize',6)
end
figure(5)
for ii = i:-1:1
subplot(3,1,4-ii)
aii = data(j*ii-(j-1):j*ii,2);
vii = data(j*ii-(j-1):j*ii,3);
Rii = Rall(j*ii-(j-1):j*ii,:)*n2lbf;
nn = ~isnan(vii);
h = area(aii(nn),Rii(nn,:));
set(h,'linestyle','none')
if ii == 1
xlabel('\alpha_{tw}[deg]')
end
if ii == 1
legend('Hull - residuary','Hull - viscuos','Keel - residuary','Keel - viscous','Induced','Rudder - viscous')
end
title(['V_{tw} = ', num2str(wind.V_tw(ii)*ms2kt), ' kts'])
ylabel('lbf')
end
figure(6)
sailcoefplot