help needed for plotting a graph

shaswat · August 21, 2012, 11:07

Dear friend

This is my problem

I need to calculate the pressure gradient along the axis of the artery model. (I did transient analysis on the artery model)
how can i plot the graph (axial length vs pressure gradient) in cfx post

I did the following method

I drew a line along the axis then in the graph i set General>type>xy
then Data series>location >line
xaxis>variable >Z
then
Yaxis>Variable>pressure gradient

Is the above method correct or not?

Note:Transient analysis has been conducted.

is the plot axial length vs pressure gradient indicates the last time step graph or accumulated time step graph

Please help me

Thank you

Govind

singer1812 · August 21, 2012, 14:46

Seems right if you are trying to plot DP/dz. I assume you are not trying to plot DP/dt.

singer1812 · August 21, 2012, 14:50

Govind:

I noticed you are double posting identical requests. Please keep your requests under a single thread.

evcelica · August 21, 2012, 21:44

If you are getting your graph that shows pressure and length then you are doing it correctly. I usually check the "custom data selection" box and select my two variables. This will be data from whichever timestep you have selected (which is thew last results file unless you changed it) you can change the timestep by going up to the clock looking icon which lets you choose different timesteps.

You can only make a transient graph using points, not lines.
You can export the data of any graph by clicking the export button
You can also make an animation of the pressure by making a contour, then clicking on the animation button right next to the timestep selector, and clicking your contour and animate. You may want to set your contour to a fixed range for this.

August 21, 2012, 11:07	help needed for plotting a graph	#1
shaswat Senior Member Shashwat Join Date: Nov 2011 Posts: 107 Rep Power: 14	Dear friend This is my problem I need to calculate the pressure gradient along the axis of the artery model. (I did transient analysis on the artery model) how can i plot the graph (axial length vs pressure gradient) in cfx post I did the following method I drew a line along the axis then in the graph i set General>type>xy then Data series>location >line xaxis>variable >Z then Yaxis>Variable>pressure gradient Is the above method correct or not? Note:Transient analysis has been conducted. is the plot axial length vs pressure gradient indicates the last time step graph or accumulated time step graph Please help me Thank you Govind

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August 21, 2012, 14:46		#2
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 20	Seems right if you are trying to plot DP/dz. I assume you are not trying to plot DP/dt.

August 21, 2012, 14:50		#3
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 20	Govind: I noticed you are double posting identical requests. Please keep your requests under a single thread.

August 21, 2012, 21:44		#4
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,167 Rep Power: 23	If you are getting your graph that shows pressure and length then you are doing it correctly. I usually check the "custom data selection" box and select my two variables. This will be data from whichever timestep you have selected (which is thew last results file unless you changed it) you can change the timestep by going up to the clock looking icon which lets you choose different timesteps. You can only make a transient graph using points, not lines. You can export the data of any graph by clicking the export button You can also make an animation of the pressure by making a contour, then clicking on the animation button right next to the timestep selector, and clicking your contour and animate. You may want to set your contour to a fixed range for this.