Critical Values Of Reynolds Number. API recommends using the following equation to determine the. In between these two limits the flow is termed transition flow.
However the value of the critical Reynolds number depends on the fluid behavior and properties. A unique numerical value of the stability parameter K permits one to calculate the critical value of an arbitrarily defined Reynolds number regardless of such complicating factors as noncircular geometries nonisothermal flows or non-Newtonian fluid behavior as stated by Hanks. At a low Reynolds number Re 01 the presence of the flat plate is felt in a relatively large area where the viscous effects are important.
Critical Rayleigh numbers for leadtin and nickel-based super-alloys were also developed.
When a fluid flows over a flat plate a turbulent flow is to be expected if the Reynolds numbers are greater than 100000. The exact number at which the flow of a fluid makes a transition from laminar to turbulent is termed as critical Reynolds number. As the Reynolds number. Torabi Rad et al.
