# time average particles velocity
**URL:** https://discourse.paraview.org/t/time-average-particles-velocity/5231
**Category:** ParaView Support
**Tags:** vtk
**Created:** [August 31, 2020, 8:57pm UTC](https://discourse.paraview.org/t/time-average-particles-velocity/5231 "2020-08-31T20:57:37Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@Hossein4142](https://discourse.paraview.org/u/Hossein4142)
#### Post date: [August 31, 2020, 8:57pm UTC](https://discourse.paraview.org/t/time-average-particles-velocity/5231/1 "2020-08-31T20:57:37Z")
Hi
I have .pvd and .vtp files (result of mfix). this files are about particle data. I want to export time average particle y-velocity . how can i do it?
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [September 1, 2020, 12:17pm UTC](https://discourse.paraview.org/t/time-average-particles-velocity/5231/2 "2020-09-01T12:17:31Z")
TemporalStatistics ?
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### Author:  [@Hossein4142](https://discourse.paraview.org/u/Hossein4142)
#### Post date: [September 2, 2020, 1:42pm UTC](https://discourse.paraview.org/t/time-average-particles-velocity/5231/3 "2020-09-02T13:42:22Z")
dear sir Mathieu
I am a Msc student from iran university of science and technology (IUST); Thehran, Iran.
I am using paraView for presentation of the results of a CFD-DEM results of a fluidized bed reactor. in this method, the location and velocity of each particles are saved through the time; while the gas phase data (velocity) are saved in the cells. the average number of particles in each cell are about 10 particle.
now; I want to average the solid circulation velocity in time. in this regard; first I should convert the point data to cell data and then I should make an averaging the result through time. two consequent .csv files of the data attached. Please help me to overcome this problem.
Best regards
[19.99s.csv](https://discourse.paraview.org/uploads/short-url/jzXo7BeVo44bmG439NIjPk7uka2.csv) (575.2 KB) [20s.csv](https://discourse.paraview.org/uploads/short-url/ml6zp1bsTB6nCMhadrIYWc36AGY.csv) (575.3 KB)
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [September 2, 2020, 1:43pm UTC](https://discourse.paraview.org/t/time-average-particles-velocity/5231/4 "2020-09-02T13:43:13Z")
Filters -\> TemporalStatistics should give you the results you are looking for.
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### Author:  [@Hossein4142](https://discourse.paraview.org/u/Hossein4142)
#### Post date: [September 2, 2020, 1:53pm UTC](https://discourse.paraview.org/t/time-average-particles-velocity/5231/5 "2020-09-02T13:53:10Z")
thanks again dear Mathieu
I fully understand what you mean, But we have no cells and i want the average number of particles in each cell. how can I mapped point data to cells?
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [September 2, 2020, 1:57pm UTC](https://discourse.paraview.org/t/time-average-particles-velocity/5231/6 "2020-09-02T13:57:35Z")
Where are the cells suposed to come from ?
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### Author:  [@Hossein4142](https://discourse.paraview.org/u/Hossein4142)
#### Post date: [September 5, 2020, 2:34pm UTC](https://discourse.paraview.org/t/time-average-particles-velocity/5231/7 "2020-09-05T14:34:35Z")
Dear Mathieu,
Thanks a lot for your quick reply.
Actually I want to find the particles velocity (lagrangian objects)in each cell. The cells are corresponds to the gas phase data (Eulerian). The cell coordinates are available in files which i have attached previously (here also attached as gas.csv). In each cell there are some particles. the particles data are available in the file (solid.csv). Now, I need to average the particles mapped velocity in the cells.
For More details please see the attached image.
 [20s.csv](https://discourse.paraview.org/uploads/short-url/ml6zp1bsTB6nCMhadrIYWc36AGY.csv) (575.3 KB) [solid.csv](https://discourse.paraview.org/uploads/short-url/zWCcF4CvF1A1ilm2rQ6HLw2vKma.csv) (2.0 MB)
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [September 15, 2020, 2:59pm UTC](https://discourse.paraview.org/t/time-average-particles-velocity/5231/8 "2020-09-15T14:59:02Z")
Still unclear. Please include a state file.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 14, 2022, 7:39am UTC](https://discourse.paraview.org/t/time-average-particles-velocity/5231/9 "2022-03-14T07:39:11Z")
A post was split to a new topic: [LIGGTHS questions](https://discourse.paraview.org/t/liggths-questions/9172)