Why it is useful to describe problems in terms of non-dimensional parameters and which ones are the main important in solidification?
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ProCAST, QuikCAST
Casting
|2012年10月2日
A dimensionless quantity is a quantity without any physical units. Such a number is typically defi ned as a product or ratio of quantities which do have units, in such a way that all units cancel. Dimensionless quantities are widely used in the fields of physics and engineering but also in every day life.