MATLAB Answers


how to plot individual particle velocites in a closed space

Asked by bharathi Dasari on 16 Oct 2019 at 13:58
Latest activity Answered by darova
on 16 Oct 2019 at 18:55
i had some spherical particles which will be moving with time i had the velocity data but to plot contour i need to assign to grid how to do this


in home page there is an option called import data, after importing select 2 coulmns which are in b and c rows which are particle postions (x,y) with respect to time and keep the option column vectors in output type and generate it as script
Describe your data: which column is what and which column is your time//velocity//coordinates, etc or you have formulation to compute your velocity from your atatched data?
xx,yy are x and y locations and at the starting real time tells at what time step we are ,velocity components is not there in that data. i dont have any

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1 Answer

Answer by darova
on 16 Oct 2019 at 18:55
 Accepted Answer

Here is what i invented
A = readtable('ploc.txt');
A1 = A;
k = 1;
for i = 0:10
ii = (1:561) + 561*i;
A1(ii,:) = A(ii+k,:); % read only with numbers
k = k + 2;
A2 = table2array(A1); % convert table to array
A3 = zeros(length(A2),5);
for i = 1:length(A2)
A3(i,:) = str2num(A2{i}); % convert cell/str to number
hold on
for i = 0:10
ii = (1:561) +i*561;
x = A3(ii,2);
y = A3(ii,3);
plot(x,y,'.r') % draw particles
hold off


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