# [GAMBIT] single and twin screw geometry

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 December 8, 2009, 03:55 single and twin screw geometry #1 New Member   imran baig Join Date: Dec 2009 Posts: 11 Rep Power: 8 How to use gambit to develop single and twin screw geometry

 December 8, 2009, 03:58 #2 New Member   imran baig Join Date: Dec 2009 Posts: 11 Rep Power: 8 i am interested in finding out method to develop single and twin screw geometry in gambit

December 8, 2009, 04:02
#3
New Member

imran baig
Join Date: Dec 2009
Posts: 11
Rep Power: 8
Quote:
 Originally Posted by imran How to use gambit to develop single and twin screw geometry
i need complete procedure

 December 8, 2009, 04:05 #4 New Member   imran baig Join Date: Dec 2009 Posts: 11 Rep Power: 8 i need complete procedure of developing single and twin screw geometry in gambit

 December 9, 2009, 07:59 #5 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,145 Rep Power: 32 create the face you want to extrude. Then use the sweep face tool, type perpendicular, enable twist option, and finally give the right angle __________________ In memory of my friend Hervé: CFD engineer & freerider

 December 10, 2009, 05:12 #6 New Member   imran baig Join Date: Dec 2009 Posts: 11 Rep Power: 8 Please narrate steps involved in creating faces of extruder .I am just beginner of software

 December 10, 2009, 06:55 #7 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,145 Rep Power: 32 what kind of face do you have? __________________ In memory of my friend Hervé: CFD engineer & freerider

 December 28, 2009, 09:18 #8 New Member   imran baig Join Date: Dec 2009 Posts: 11 Rep Power: 8 i want first to develop 2D geometry of single and double screw extruder .Pl narrate steps in developing their geometry in gambit And further to mesh it using mesh superposition technique for simulation in fluent

 January 3, 2010, 08:39 Twin screw geometry in gmbit #9 New Member   imran baig Join Date: Dec 2009 Posts: 11 Rep Power: 8 I have created circular face for extrusion and swept the face giving type perpendicular and twist option and giving angle of 180 Volume is created with circular face at the other end too. I swept faces in small segments along small edges making zig zag volume with circular face after each segment. Please some body tells is it correct method? what is next?

 January 4, 2010, 01:50 #10 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,145 Rep Power: 32 extract fluid domain. Create a surrounding volume (containing your 2 screws) and substract this volume with the 2 others (boolean operation) __________________ In memory of my friend Hervé: CFD engineer & freerider

 January 9, 2010, 23:18 Simulation on mixing of two immiscible fluids in extruder #11 New Member   imran baig Join Date: Dec 2009 Posts: 11 Rep Power: 8 I have created geometry of single screw extruder in gambit .Now i have to simulate two immiscible fluids. Is fluent 6 is applicable ? what sort of model is applicable? Two fluids are liquids one being highly viscous

 January 11, 2010, 01:55 #12 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,145 Rep Power: 32 It should be ok with fluent. Check Online Help __________________ In memory of my friend Hervé: CFD engineer & freerider

 January 20, 2010, 12:00 #13 New Member   imran baig Join Date: Dec 2009 Posts: 11 Rep Power: 8 i am using VOF model for mixing of Ethylene vinyl chloride and ethylene glycol Boundary conditions are moving reference frame of moving fluid and stationary wall inlet is pressure inlet ,the dimensions of single screw is 30mmdia &45 mm screw length on iteration flow is reversed and after 5 -6 iteration error pl help to getout of it

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