binousNNPipeFlow(varargin)

function varargout = binousNNPipeFlow(varargin)
% BINOUSNNPIPEFLOW M-file for binousNNPipeFlow.fig
%      BINOUSNNPIPEFLOW, by itself, creates a new BINOUSNNPIPEFLOW or raises the existing
%      singleton*.
%
%      H = BINOUSNNPIPEFLOW returns the handle to a new BINOUSNNPIPEFLOW or the handle to
%      the existing singleton*.
%
%      BINOUSNNPIPEFLOW('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in BINOUSNNPIPEFLOW.M with the given input arguments.
%
%      BINOUSNNPIPEFLOW('Property','Value',...) creates a new BINOUSNNPIPEFLOW or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before binousNNPipeFlow_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to binousNNPipeFlow_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Copyright 2002-2003 The MathWorks, Inc.

% Edit the above text to modify the response to help binousNNPipeFlow

% Last Modified by GUIDE v2.5 06-Dec-2007 16:13:59

% Begin initialization code - DO NOT EDIT

clc

gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @binousNNPipeFlow_OpeningFcn, ...
                   'gui_OutputFcn',  @binousNNPipeFlow_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT

options=optimset('display','off');



% --- Executes just before binousNNPipeFlow is made visible.
function binousNNPipeFlow_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to binousNNPipeFlow (see VARARGIN)

global kappa n rend DPoverL options

% Choose default command line output for binousNNPipeFlow
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes binousNNPipeFlow wait for user response (see UIRESUME)
% uiwait(handles.figure1);

kappa=1e-6;
n=2;

% pipe radius is 0.02m

rend=0.02;

% Pressure gradient

DPoverL=50/10;

% finding the velocity at the center of the pipe (we use the shooting
% method)

vo=fsolve(@zero,0.5,options);

X0f=[0,vo];

% Solving the governing equations to get the velocity profile

[r X]=ode45(@goveq,[1e-5 rend],X0f);

% plotting the shear stress and the velocity in the pipe

if strcmp(get(hObject,'Visible'),'off') 
plot(r,X(:,2),'b');
axis tight
xlabel('radial position')
ylabel('velocity')
end

% --- Outputs from this function are returned to the command line.
function varargout = binousNNPipeFlow_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;



function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double

global kappa n rend DPoverL

n=str2num(get(hObject,'String'));

% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

function edit2_Callback(hObject, eventdata, handles)
% hObject    handle to edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit2 as text
%        str2double(get(hObject,'String')) returns contents of edit2 as a double
global kappa n rend DPoverL

kappa=str2num(get(hObject,'String'));

% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function edit3_Callback(hObject, eventdata, handles)
% hObject    handle to edit3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit3 as text
%        str2double(get(hObject,'String')) returns contents of edit3 as a double
global kappa n rend DPoverL

rend=str2num(get(hObject,'String'));

% --- Executes during object creation, after setting all properties.
function edit3_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function edit4_Callback(hObject, eventdata, handles)
% hObject    handle to edit4 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit4 as text
%        str2double(get(hObject,'String')) returns contents of edit4 as a double

global kappa n rend DPoverL

DPoverL=str2num(get(hObject,'String'));

% --- Executes during object creation, after setting all properties.
function edit4_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit4 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

global kappa n rend DPoverL options

% finding the velocity at the center of the pipe (we use the shooting
% method)

vo=fsolve(@zero,0.5,options);

X0f=[0,vo];

% Solving the governing equations to get the velocity profile

[r X]=ode45(@goveq,[1e-5 rend],X0f);

% plotting the shear stress and the velocity in the pipe

h=get(handles.uipanel2,'SelectedObject');

if (h==handles.radiobutton2) 
plot(r,X(:,2),'b');
axis tight
xlabel('radial position')
ylabel('velocity')
else
plot(r,X(:,1),'r');
axis tight
xlabel('radial position')
ylabel('shear stress')
end