In fluent post processing, difference between, x velocity and axial velocity?

padmanathan · December 18, 2014, 11:12

hi all,

In case of simple 3D flow through pipe problem, In Fluent post processing i found the velocity output can be plotted as x, y, z velocity or axial, radial, tangential velocity. the inputs are given as pressure inlet with axial component and tangential velocity (local cylindrical swirl). which system of output i should choose for postprocessing? Cartesian or cylindrical?

edoan · December 19, 2014, 13:58

whichever you prefer

padmanathan · December 19, 2014, 23:42

in that case, how 'x velocity' and 'axial velocity' outputs are different?

edoan · December 20, 2014, 15:13

they should only be different if the x direction is not aligned with the axial direction of your pipe

December 18, 2014, 11:12	In fluent post processing, difference between, x velocity and axial velocity?	#1
padmanathan New Member padhu Join Date: Jun 2009 Location: Bangalore, India Posts: 27 Rep Power: 17	hi all, In case of simple 3D flow through pipe problem, In Fluent post processing i found the velocity output can be plotted as x, y, z velocity or axial, radial, tangential velocity. the inputs are given as pressure inlet with axial component and tangential velocity (local cylindrical swirl). which system of output i should choose for postprocessing? Cartesian or cylindrical?

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December 19, 2014, 13:58		#2
edoan Member Ethan Doan Join Date: Oct 2012 Location: Canada Posts: 90 Rep Power: 13	whichever you prefer

December 19, 2014, 23:42		#3
padmanathan New Member padhu Join Date: Jun 2009 Location: Bangalore, India Posts: 27 Rep Power: 17	in that case, how 'x velocity' and 'axial velocity' outputs are different?

December 20, 2014, 15:13		#4
edoan Member Ethan Doan Join Date: Oct 2012 Location: Canada Posts: 90 Rep Power: 13	they should only be different if the x direction is not aligned with the axial direction of your pipe