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R g mechanics6/8/2023 See other article for extensive list of dimensionless quantities. Such forms are less commonly used in practice, but can provide insight into particular applications.Īll numbers are dimensionless quantities. Re = inertial force/viscous force = vd/ ν.) These same quantities may alternatively be expressed as ratios of characteristic time, length, or energy scales. (In the table, the diagonals give common symbols for the quantities, and the given dimensionless number is the ratio of the left column quantity over top row quantity e.g. The six dimensionless numbers give the relative strengths of the different phenomena of inertia, viscosity, conductive heat transport, and diffusive mass transport. ![]() ![]() 1 Diffusive numbers in transport phenomenaĭiffusive numbers in transport phenomena Dimensionless numbers in transport phenomenaĪs a general example of how dimensionless numbers arise in fluid mechanics, the classical numbers in transport phenomena of mass, momentum, and energy are principally analyzed by the ratio of effective diffusivities in each transport mechanism. System Requirements:Operating system: the Windows 7 SP1 or Windows 8.1 or Windows 10 (64bit versions) Processor: the Intel Core i5 2.s / AMD FX 6350 3.9 GHz Memory: 6 GB Video Card: NVIDIA GeForce GTX 660 / AMD Radeon R9 270 (2GB VRAM with Shader Model 5.
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