Reynolds Number for ducts or open channels The hydraulic diameter is determined with: “ D H = 4A/P” where “P” is the “wetted perimeter”, or the area that contacts the fluid flow. When we are investigating the type of flow in a pipe, we use the formula: “Re = QD H/νΑ” where “ Q” is the fluid flow rate, “ D H” is the hydraulic diameter, “ ν” is the kinematic viscosity, and “ A” is the pipe cross-sectional area. This former of these formula’s drives the above Reynolds Number Calculator. The Reynolds Number formula is: “Re = VDρ/μ” or “Re = VD/v” where “ V” is the fluid velocity, “ D” is the characteristic distance, “ ρ” is the fluid density, “ ν” is the kinematic viscosity, and “ μ” is the dynamic viscosity both of which can be acquired from data tables.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |