- #1
Positronized
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Hi,
I am designing an experiment for an individual project and it happens to involve aerodynamic. I wonder if someone can give me some idea of the drag coefficient of a square piece of flat paper (the normal 80grams photocopying paper) traveling through air against its face? (i.e. not traveling along the edge)
I'm guessing roughly 1.7-1.9 according to the data for "flat surface (square)" from a website. Is this supposed to be right? Is there any other shape I can make out of this kind of paper which will give higher drag coefficient?
Thanks!
*EDIT: Oh and also, does anyone know the approximate mass per area of those thin aluminium foil used for food wrapping? Because if it doesn't weigh too much more than the photocopying paper then it'd probably suit the experiment better (the area will be somewhere around 25sq.cm.)
*EDIT2: Never mind about the aluminium foil thing, I managed to work it out by using density data. Turns out that it weighs even less than the paper. Information about thin-sheet square drag coefficient would still be appreciated though ^^
I am designing an experiment for an individual project and it happens to involve aerodynamic. I wonder if someone can give me some idea of the drag coefficient of a square piece of flat paper (the normal 80grams photocopying paper) traveling through air against its face? (i.e. not traveling along the edge)
I'm guessing roughly 1.7-1.9 according to the data for "flat surface (square)" from a website. Is this supposed to be right? Is there any other shape I can make out of this kind of paper which will give higher drag coefficient?
Thanks!
*EDIT: Oh and also, does anyone know the approximate mass per area of those thin aluminium foil used for food wrapping? Because if it doesn't weigh too much more than the photocopying paper then it'd probably suit the experiment better (the area will be somewhere around 25sq.cm.)
*EDIT2: Never mind about the aluminium foil thing, I managed to work it out by using density data. Turns out that it weighs even less than the paper. Information about thin-sheet square drag coefficient would still be appreciated though ^^
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