Flapping foil

antieskmartin · August 30, 2017, 05:38

Dear Samadhi

I am also working in the field of flapping foil system. I followed your set up,

But unfortunately, I found an unexpected displacement of foil in the X

the direction where it is not allowed. The foil is allowed to oscillate coupled

motion of heave( with respect to Z direction) and pitch (with respect to y

direction). Since the foil is moving in the X direction the overset region is

moving out of Overlap region and cause an error.Could you help me to figure

out the error. Here I am attching the images

ghorrocks · August 30, 2017, 06:13

Which software are you modelling this in?

antieskmartin · August 30, 2017, 06:23

Dear Glenn

Thank you for your interest

I am using Star CCM software

ghorrocks · August 30, 2017, 06:55

Then try the StarCCM forum.

lazysamare · August 31, 2017, 14:22

How have you specified the motion for the heave and pitch?

antieskmartin · August 31, 2017, 20:26

Yes the foil is allowed for coupled motion of both heave and pitch.
But I have tested with heave alone and experienced the same issue.

ghorrocks · August 31, 2017, 20:33

This is the CFX forum. For discussion of issues regarding the StarCCM solver please use that forum. I have moved the relevant posts to the StarCCM forum for you, and in future please ensure you post on the correct forum.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Ship propulsion based on flapping foils: Star CCM+ simulation?	antieskmartin	STAR-CCM+	15	August 17, 2020 23:12
Drag Coefficient Gradient: 0 in 2d adjoint optimization	tomp1993	SU2 Shape Design	11	August 1, 2019 15:14
Flapping foil displacement in wrong direction?	antieskmartin	STAR-CCM+	6	September 1, 2017 02:17
[GAMBIT] Mesh generating for a flapping foil in RBF method	ronak	ANSYS Meshing & Geometry	2	July 18, 2017 04:26
Using simulation to determine thrust vs flapping amplitude relation	quarkz	Main CFD Forum	1	November 19, 2015 07:18

August 30, 2017, 06:13		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Which software are you modelling this in?

August 30, 2017, 06:23		#3
antieskmartin New Member Anties K Martin Join Date: Aug 2016 Location: chennai Posts: 16 Rep Power: 9	Dear Glenn Thank you for your interest I am using Star CCM software

August 30, 2017, 06:55		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Then try the StarCCM forum.

August 31, 2017, 14:22		#5
lazysamare New Member Samadhi Join Date: Mar 2017 Posts: 3 Rep Power: 9	How have you specified the motion for the heave and pitch?

August 31, 2017, 20:26		#6
antieskmartin New Member Anties K Martin Join Date: Aug 2016 Location: chennai Posts: 16 Rep Power: 9	Yes the foil is allowed for coupled motion of both heave and pitch. But I have tested with heave alone and experienced the same issue.

August 31, 2017, 20:33		#7
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	This is the CFX forum. For discussion of issues regarding the StarCCM solver please use that forum. I have moved the relevant posts to the StarCCM forum for you, and in future please ensure you post on the correct forum.