# Mesh analysis

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 October 8, 2015, 08:07 Mesh analysis #1 New Member   jajo Join Date: Oct 2015 Posts: 2 Rep Power: 0 Hello all for my master thesis I like to compare different fan blades. My idea is to compare them by measuring the difference in the topology. I need a tool in ANSA to measure the angle between the normal of each shell of my blade and the y-axis (for example). For better understanding I give you an example using a sphere: When I look at a sphere the angle of the shell on top to y-axis should be around 90 degrees, for shells at the "aquator" the angle should be 0 degrees. The shells between should have angles form 90 to 0 degrees. So far I hope you can follow me. The result should be a distribution of shells (better areas) an there angle to the y-axis. For example 10 percent of the blade area have an angle of 5 degrees to the y-axis, 24 percent have an angle of 10 degrees an so on... I hope everybody understand my problem and in the best case somebody is able to help me! Thanks a lot Best regards Jake

 October 27, 2015, 03:56 #2 Senior Member   Vangelis Skaperdas Join Date: Mar 2009 Location: Thessaloniki, Greece Posts: 286 Rep Power: 20 Dear Jake If you start ANSA in CFD layout and go to the User Defined Functions button you will find a UDF that does this exactly. It is called IsolateNormalVector Hope this helps Vangelis

 October 30, 2015, 09:08 #3 New Member   jajo Join Date: Oct 2015 Posts: 2 Rep Power: 0 Hi Vangelis, that is exactely what I was looking for! Thank you very much! Greetings

 November 1, 2015, 15:37 #4 Senior Member   Vangelis Skaperdas Join Date: Mar 2009 Location: Thessaloniki, Greece Posts: 286 Rep Power: 20 you are very welcome Jake!

 November 9, 2015, 04:28 Ansa projectig open holes #5 New Member   Join Date: Nov 2015 Posts: 2 Rep Power: 0 Hi vangelis, I am new to ansa scripting and i would like to write a code for projecting open holes on a plate my steps are as follows: Shell mesh-Project-holes-select area by user-with diameter 6, node no 8 and zone1 3 Pls help me with writing the code