Relationship between roughness height in use with Colebrook roughness function and the internal wall surface roughness parameters for stainless steel pipesColebrook roughness functionFriction factorRoughness heightSurface profileTurbulent flow in pipesFlow tests were conducted on a total of 7 commercial ...
3.4.4 Effect of Pipe Roughness Considerable confusion exists regarding the effect of the pipe wall roughness on the value of friction factor in the turbulent flow region, though the effect is qualitatively similar to that for Newtonian fluids (Slatter, 1997; Slatter and van Sittert, 1997; Sla...
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A mixing length type model is proposed and numerical results are reported for the Fanning friction factor and the heat transfer coefficient—the Nusselt number—for hydrodynamically and thermally stabilized single phase incompressible turbulent forced convection flow in a round tube with internally sand-...
In this paper, an experimental system for single droplet generation and impingement with low-boiling point refrigerant under atmospheric pressure has been constructed successfully to investigate the dynamic behavior of R1336mzz(Z) droplet impinging on the solid surface of carbon steel 45. The effects ...