[DesignModeler] Cylinder with helical tube inside it

Anne12 · March 28, 2018, 13:48

Anyone can help in designing a cylinder with helical tube inside..I dont know how to assign length and pitch to the pipe and how the extra length of pipe can be added to inlet and outlet after giving suitable number of turns to the pipe inside the cylinder..

carbinemen · April 1, 2018, 06:54

Hi. I am not sure I understand what you need. Can you post a drawing of the intended final geometry and which part of it do you need help with?

Anne12 · April 2, 2018, 03:28

cyl.JPG here the length pipe is given as 4.35m ,cylinder height is 0.32m and pitch is zero. I am having problem in designing the helical pipe.

carbinemen · April 3, 2018, 04:28

To design a helical pipe, you have to sweep a cross-section around an axis of rotation. So after sketching the cross-section for your helix, you have to choose the axis of rotation. You can choose one of the standard axis (X, Y or Z) but I usually sketch a line where I want the axis of rotation to be. After that, you use the sweep feature, where the profile is the cross-section and path is the axis. Then you can select Pitch or Turns in Twist Specification. Since I usually draw my axis of rotation with height equal to the height of the helix, I can just select Turns and specify how many turns I want for that length. I also control the radius of curvature by the position of the axis. Is this how you designed your helix? I still can't understand exactly what you are asking.

About extending your inlet and outlet pipe, after generating the helix you can select the inlet or outlet face and Extrude it.

Anne12 · April 3, 2018, 08:17

Thanks for ur help

Roh · February 21, 2019, 13:45

Guys,
I need to draw a helical just like the below screenshot but the second profile should not be changed(shouldn't be scaled-down). I don't know how to draw it. Any idea?

March 28, 2018, 13:48	Cylinder with helical tube inside it	#1
Anne12 New Member Anne Join Date: Mar 2018 Posts: 3 Rep Power: 8	Anyone can help in designing a cylinder with helical tube inside..I dont know how to assign length and pitch to the pipe and how the extra length of pipe can be added to inlet and outlet after giving suitable number of turns to the pipe inside the cylinder..

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[GAMBIT] Boundary layer over a Helical tube surface	Jammy	ANSYS Meshing & Geometry	9	May 8, 2017 04:30
annulus ice melting by gained energy from hot flowing fluid inside tube	Sedcfd	FLUENT	0	March 29, 2017 07:00
Flow through small cylinder recirculated inside larger cylinder.	Keesie	FLUENT	1	July 28, 2016 04:30
[ICEM] Injector Tube into a Big Cylinder - How to mesh?	Leepox	ANSYS Meshing & Geometry	2	November 25, 2011 10:45
simulation of piston motion inside a hydraulic cylinder	mosman	Main CFD Forum	0	August 7, 2011 01:40

April 1, 2018, 06:54		#2
carbinemen New Member João Vale Join Date: Feb 2018 Posts: 7 Rep Power: 8	Hi. I am not sure I understand what you need. Can you post a drawing of the intended final geometry and which part of it do you need help with?

April 2, 2018, 03:28		#3
Anne12 New Member Anne Join Date: Mar 2018 Posts: 3 Rep Power: 8	cyl.JPG here the length pipe is given as 4.35m ,cylinder height is 0.32m and pitch is zero. I am having problem in designing the helical pipe.

April 3, 2018, 04:28		#4
carbinemen New Member João Vale Join Date: Feb 2018 Posts: 7 Rep Power: 8	To design a helical pipe, you have to sweep a cross-section around an axis of rotation. So after sketching the cross-section for your helix, you have to choose the axis of rotation. You can choose one of the standard axis (X, Y or Z) but I usually sketch a line where I want the axis of rotation to be. After that, you use the sweep feature, where the profile is the cross-section and path is the axis. Then you can select Pitch or Turns in Twist Specification. Since I usually draw my axis of rotation with height equal to the height of the helix, I can just select Turns and specify how many turns I want for that length. I also control the radius of curvature by the position of the axis. Is this how you designed your helix? I still can't understand exactly what you are asking. About extending your inlet and outlet pipe, after generating the helix you can select the inlet or outlet face and Extrude it.

April 3, 2018, 08:17		#5
Anne12 New Member Anne Join Date: Mar 2018 Posts: 3 Rep Power: 8	Thanks for ur help

February 21, 2019, 13:45		#6
Roh Senior Member Join Date: Sep 2017 Posts: 130 Rep Power: 8	Guys, I need to draw a helical just like the below screenshot but the second profile should not be changed(shouldn't be scaled-down). I don't know how to draw it. Any idea?