Fluid Mechanics Demo - Help choose dye

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gpavanb
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Hi,

I am planning to do this as a demo in my fluid mechanics class.



I've used glycerine as corn syrup isn't available. It seems to be transparent and viscous enough. Can anyone please suggest a dye? The video seems to be using coloured corn syrup for flow visualization. How can I colour my glycerine?

Please reply ASAP.
 
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