How to Graph Temperature Variation in Matlab? (2024)

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    GraphingHeatHeat transferMatlab

In summary, the code should output the results and a graph of the temperature variation within the wall. The code needs to be able to run and output these results without any further user manipulation to the graphs via the mouse.

  • #1

dropdeadmarc

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0

Homework Statement

How to Graph Temperature Variation in Matlab? (1)

I've been given a Heat transfer problem, which I must solve in Matlab.
The code should output the results and a graph of the temperature variation within the wall.

Also the code needs to be able to run and output these results without any further user manipulation to the graphs via the mouse. All commands in a ".m" file.

Homework Equations

hold on;
plot(t',h')

The Attempt at a Solution

I have no problem solving for the temperature change and rate of heat loss. I'm just having a problem with how to graph the temperature change versus the distance. I'm assuming it should be similar to the image supplied.

I figured I could do something like the following, where it would plot individual points:

hold on;
while t< the thickness of each transition
find temp
plot
t=t+.1
end

However, this is overly complicated and would take a lot of time to set up. The temperature change throughout each material is linear. So I would think that If I just calculate the temperature at the material change points, I could just plot those points, and then connect these points with lines.

Is there some syntax that would make this possible to code?
I tried searching online and using "help plot" but to no avail

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  • #2

Mapes

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Hi dropdeadmarc, welcome to PF. Just plot the temperatures of the interfaces against the locations of the interfaces. The regions in between will be connected by straight lines (e.g., plot([x1 x2 x3],[T1 T2 T3])). Does this answer your question?

  • #3

dropdeadmarc

4
0

Mapes said:

Hi dropdeadmarc, welcome to PF. Just plot the temperatures of the interfaces against the locations of the interfaces. The regions in between will be connected by straight lines (e.g., plot([x1 x2 x3],[T1 T2 T3])). Does this answer your question?

Thats exactly what I was looking for. I've only used Matlab to plot individual points and lines based on functions. I don't know why I didn't try that though.
Thank you so much!

Related to How to Graph Temperature Variation in Matlab?

1. How do I graph heat transfer data in Matlab?

To graph heat transfer data in Matlab, you can use the "plot" function. First, organize your data into two arrays - one for the x-values and one for the y-values. Then, use the "plot" function to create a line plot of the data. You can also customize the plot by adding titles, labels, and adjusting the axes.

2. Can I create a 3D graph of heat transfer in Matlab?

Yes, you can create a 3D graph of heat transfer in Matlab using the "mesh" function. This function allows you to plot a surface by specifying the x, y, and z coordinates of the points you want to plot. You can also add color and customize the appearance of the graph.

3. How do I add multiple lines to a heat transfer graph in Matlab?

To add multiple lines to a heat transfer graph in Matlab, you can use the "hold" function. This allows you to plot multiple lines on the same graph without erasing the previous data. You can also use the "legend" function to label each line and make the graph easier to interpret.

4. What is the difference between a scatter plot and a line plot in Matlab?

A scatter plot in Matlab displays individual data points as dots on a graph, while a line plot connects these data points with a line. A scatter plot is useful for visualizing the distribution of data, while a line plot is often used to show the trend or relationship between two variables.

5. Can I export a heat transfer graph from Matlab to another program?

Yes, you can export a heat transfer graph from Matlab to another program by using the "saveas" function. This allows you to save the graph as an image file, such as a PNG or JPEG, which can then be inserted into other programs or documents. You can also adjust the resolution and size of the exported image.

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                      How to Graph Temperature Variation in Matlab? (2024)

                      FAQs

                      How do you make a good graph in Matlab? ›

                      Direct link to this comment
                      1. Increase the linewidth (2 or 3 is good).
                      2. Add a grid.
                      3. Add minor ticks to the axes.
                      4. Plot as an area with solid line and semi-transparent fill.
                      5. Set the axes limits appropriately.
                      6. Add a legend.
                      7. Change the font and fontsize to match the output size.
                      8. Set the figure aspect ratio correctly.
                      Feb 27, 2016

                      How to make a temperature converter in Matlab? ›

                      The MATLAB Code field is prepopulated with code to convert temperature from Fahrenheit to Celsius.
                      1. Set the variables for communicating with ThingSpeak. ...
                      2. Read the most recent temperature value using the thingSpeakRead function. ...
                      3. Calculate the temperature in Celsius and display the result.

                      How to plot a graph in Matlab from data? ›

                      Create Simple Line Plots

                      Create a table containing three variables. Then pass the table as the first argument to the plot function followed by the names of the variables you want to plot. In this case, plot the Input variable on the x-axis and the Output1 variable on the y-axis.

                      How do you make a graph attractive? ›

                      Colors are the most important factor in charts to make them more visually appealing. So, always choose a good set of eye-catching colors that will highlight your story for the user.

                      How to plot a XY graph in MATLAB? ›

                      To add an XY plot to your layout, click Visualizations and layouts . Then, from Visualizations, click or click and drag the XY icon onto the subplot. To plot signals on the XY plot, select signals in the table. Then, assign signal pairs to the x-Axis and y-Axis of a row in the XY Data dialog box.

                      How to draw a graph using MATLAB? ›

                      How to Plot a Graph in MATLAB
                      1. Step 1: Specify the Range of Values for the x variable for which you're plotting the function. ...
                      2. Step 2: Define the function, y = f(x)
                      3. Step 3: Use the plot function to generate a figure.
                      4. Step 1: Use the functions xlabel, ylabel, and title to generate labels along the axes.
                      5. Display grid lines.
                      Jun 22, 2022

                      How do you visualize temperature? ›

                      1 Basic plots

                      The simplest way to visualize temperature sensor data is to use basic plots, such as line charts, scatter plots, or bar charts. These plots can show the trends, patterns, and outliers in the data over time or across different locations.

                      What is temp function in Matlab? ›

                      It is a temporary variable. The formula calls for adding (1 minus a product), and the temporary variable is that product. It does not have a particular name in the formula.

                      How do you calculate temperature data? ›

                      Average daily temperature for a month is calculated by adding the individual monthly average daily maximum temperatures and average daily minimum temperatures shown in columns 2 and 3 and dividing by two. Average yearly temperature is calculated by summing the monthly averages shown in Column 4 and dividing by 12.

                      How to make MATLAB plots pretty? ›

                      you'll want to use the 'Color' option in your plot statement. Right after color, include a vector with the RGB color values of whatever color you want. For example plot(x,y,'Color',1/255*[148 0 211]) will produce a very nice shade of purple. You can easily find RGB color codes for various colors online.

                      How do you make a perfect graph? ›

                      In graph theory, a perfect graph is a graph in which the chromatic number equals the size of the maximum clique, both in the graph itself and in every induced subgraph. In all graphs, the chromatic number is greater than or equal to the size of the maximum clique, but they can be far apart.

                      How do I get high quality figures in MATLAB? ›

                      To get a high-resolution image from MATLAB, you may use the "copy figure" option. In your Matlab figure, go to the "Edit" option, select "Copy Figure", then paste it in MS word file using "crtl+v". If you want to use the figure in latex, then save the figure in the ". eps" format.

                      How do you present a good graph? ›

                      Good graph design
                      1. Don't put too much data on one chart; use small multiples (same format, same scale)
                      2. Use one measure per chart.
                      3. Remove unnecessary borders, backgrounds and grid lines.
                      4. Default orientation should be landscape.
                      5. Avoid distracting graphics or animations.

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