turek.tex

\documentclass[tikz, border = 1 cm]{standalone}

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\usepackage{tikz}
\usetikzlibrary{calc}
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\definecolor{blue1}{RGB}{0,177,234}
\definecolor{blue4}{RGB}{178,231,248}
\definecolor{orange1}{RGB}{255,126,46}
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\begin{document}

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\def\xaxis{22}
\def\yaxis{4.1}
\def\sc{0.6}
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\begin{tikzpicture}[scale=\sc]

	%%% Domain
	\draw[black, very thick] (0,0) rectangle (\xaxis,\yaxis);
	
	%%% Obstacle
	\filldraw[fill=blue4,draw=blue1,thick] (2,2) circle (0.5);
	
	%%% Top and bottom BC
	\node (top) at (17,4.1) {};
	\node (bot) at (17,0) {};
	\node[scale=0.8] (bc_top_bot) at (15,2.05) {$u=v=0$};
	\draw[-stealth] (bc_top_bot) to[out=0,in=90] (bot);
	\draw[-stealth] (bc_top_bot) to[out=0,in=-90] (top);
	
	%%% Outlet BC
	\node (out) at (22,2.05) {};
	\node[scale=0.8] (bc_out) at (20,1) {free pressure};
	\draw[-stealth] (bc_out) to[out=90,in=180] (out);
	
	%%% Obstacle BC
	\node (obs) at (2.5,2) {};
	\node[scale=0.8] (bc_obs) at (4,3) {$u=v=0$};
	\draw[-stealth] (bc_obs) to[out=-90,in=0] (obs);
	
	%%% Inlet BC
	\foreach \y in{0.41, 0.82, 1.23, 1.64, 2.05, 2.46, 2.87, 3.28, 3.69}
    		\draw[-stealth, orange1] (0,\y) -- ({sin(0.25*3.14*(\y-0.05) r)},\y);
	\node (in) at (0,0.6) {};
	\node[scale=0.8] (bc_in) at (5,1.75) {$u=u_{in}$};
	\draw[-stealth] (bc_in) to[out=-90,in=0] (in);
		
	%%% Redraw domain
	\draw[black, very thick] (0,0) rectangle (\xaxis,\yaxis);
	
	%%% Draw dimensions
	\draw[stealth-stealth] (-0.2,0) -- (-0.2,1.5);
	\node[scale=0.7,rotate=90,anchor=north] at (-0.8,0.75) {0.15};
	\draw[stealth-stealth] (-0.2,1.5) -- (-0.2,2.5);
	\node[scale=0.7,rotate=90,anchor=north] at (-0.8,2.0) {0.1};
	\draw[stealth-stealth] (-0.2,2.5) -- (-0.2,4.1);
	\node[scale=0.7,rotate=90,anchor=north] at (-0.8,3.3) {0.16};
	\draw[thin, dash pattern=on 2pt] (-0.4,1.5) -- (2.1,1.5);
	\draw[thin, dash pattern=on 2pt] (-0.4,2.5) -- (2.1,2.5);
	\draw[stealth-stealth] (0.0,4.3) -- (1.5,4.3);
	\draw[stealth-stealth] (1.5,4.3) -- (2.5,4.3);
	\node[scale=0.7] at (0.75,4.6) {0.15};
	\node[scale=0.7] at (2.0,4.6) {$d$};
	\draw[thin, dash pattern=on 2pt] (1.5,2.0) -- (1.5,4.5);
	\draw[thin, dash pattern=on 2pt] (2.5,2.0) -- (2.5,4.5);
	\draw[stealth-stealth] (0.0,-0.2) -- (22.0,-0.2);
	\node[scale=0.7] at (11,-0.5) {2.2};
	\draw[stealth-stealth] (22.2,0.0) -- (22.2,4.1);
	\node[scale=0.7,rotate=-90,anchor=north] at (22.8,2.05) {0.41};
    
\end{tikzpicture}
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\end{document}