hele-shaw experimental group lucas lamb andrea roeser chen shu
TRANSCRIPT
Hele-Shaw Experimental Group
Lucas LambAndrea Roeser
Chen Shu
Set Up
Pour Glycerol or PEO
Procedure:
Clamp the plastic plates
Note the wax paper background and ruler
Insert needle
Place mass onto syringe
Record the whole process
Our Set Up
Parameters Varied
Volume of injected water remains constant (1.2 mL)
Mass: 500 -> 1000 -> 1500 -> 2000 gCell spacing: 0.32 -> 0.52 -> 0.83 mm
Newtonian -> Non-Newtonian, then process repeated
datetrial
numbernumber
of spacers
width of spacers (mm) Mass (g)
volume inside syringe
(mL) time (s)Flow Rate (mL/min)
3/25/2015 1 3 0.32 500 1.2 4.6 * 15.7 *3/25/2015 2 3 0.32 1000 1.2 3.2 * 22.5 *3/25/2015 3 3 0.32 1500 1.2 3.2 * 22.5 *3/25/2015 4 3 0.32 2000 1.2 2.1 * 34.3 *3/30/2015 1 3 0.32 2000 1.2 1.9 * 37.9 *3/30/2015 2 3 0.32 2000 1.2 2.2 * 32.7 *3/30/2015 3 5 0.52 500 1.2 5.1 * 14.1 *3/30/2015 4 5 0.52 1000 1.2 3 * 24 *3/30/2015 5 5 0.52 1500 1.2 2.2 * 32.7 *3/30/2015 6 5 0.52 200 1.2 8 * 9 *4/1/2015 1 5 0.52 1500 1.2 2 * 36 *4/1/2015 2 5 0.52 2000 1.2 1.8 * 40 *4/1/2015 3 5 0.52 200 1.2 13.3 * 5.4 *
5/4/2015 1 8 0.83 500 1.2 5 14.4
5/4/2015 2 8 0.83 1000 1.2 2.4 30
5/4/2015 3 8 0.83 1500 1.2 1.7 42.4
Newtonian Trials
datetrial
numbernumber
of spacers
width of spacers (mm) Mass (g)
volume inside syringe
(mL) time (s) *Flow Rate *
(mL/min)4/1/2015 5 3 0.32 1000 1.2 2.4 304/6/2015 1 3 0.32 500 1.2 2.9 24.84/6/2015 2 3 0.32 250 1.2 6 124/6/2015 3 3 0.32 750 1.2 2.5 28.84/6/2015 4 3 0.32 125 1.2 14.8 4.94/6/2015 5 3 0.32 250 1.2 6.3 11.44/6/2015 6 5 0.52 500 1.2 3.5 20.6
4/13/2015 1 5 0.52 250 1.2 24.8 2.94/13/2015 2 5 0.52 125 1.2 18.4 3.94/13/2015 3 5 0.52 750 1.2 3.1 23.24/13/2015 4 5 0.52 250 1.2 7.4 9.74/13/2015 5 8 0.83 125 1.2 20.2 3.64/20/2015 1 8 0.83 250 1.2 10 7.24/20/2015 2 8 0.83 500 1.2 4.8 154/20/2015 3 8 0.83 750 1.2 2.8 25.7
Non-Newtonian Trials
Experimental [Trial and] Error• Placing mass on syringe – slides off
• Air bubbles – in syringe or in cell
• Glycerol or PEO clog needle
• Possible tilt to cell – water leaks to one side
• Clamping of syringe – unnecessary forces
• Flow rates! iPhone’s slow motion affected video timing
Analysis- Varied Mass
Newtonian Fluid (glycerol)Cell Spacing 0.52mm
Mass (L to R): 200g, 500g, 1000g, 1500g
Analysis- Varied Spacing
Newtonian Fluid (glycerol)Mass: 500 g
Cell Spacing (L to R): 0.32mm, 0.52mm, 0.83mm
Analysis- Varied Spacing
Newtonian Fluid (glycerol)Mass: 1000 g
Cell Spacing (L to R): 0.32mm, 0.52mm, 0.83mm
Analysis- Varied Mass
Non-Newtonian Fluid (PEO)Cell Spacing: 0.52mm
Mass (L to R): 125g, 250g, 500g, 750g
Analysis- Varied Spacing
Non-Newtonian Fluid (PEO)Mass: 500 g
Cell Spacing: 0.32mm (left), 0.52mm (middle), 0.83mm (right)
THE END
Thank you Michael Lam