Pipe Curvature Loss Coefficient The coefficient for pressure losses due to geometry changes comprises an angle correction factor,Cangle, and a bend coefficient,Cbend: Kloss=CangleCbend. The block calculatesCangleas: Cangle=0.0148θ−3.9716⋅10−5θ2, ...
The head loss across the pipe bend increases as the solid concentration of slurry increases and decreases as the proportion of an additive increases. Losses occurring in bend curves were given in terms of bend loss coefficient. The bend loss coefficient decreased as flow velocity increased and ...
The pressure loss coefficient is determined according to recommendation provided in[1]: K=Kd·Kr·Kα where KdBase friction factor coefficient KrCorrection coefficient accounting for the bend curvature KαCorrection coefficient accounting for the bend angle ...
(IL) block models pressure loss due to user-defined pipe resistances in an isothermal liquid system. You can specify different loss coefficients for forward and reversed flows through the pipe segment. For pipe bends, you can also choose to use the Isothermal Liquid library blocksPipe Bend (IL...
When theElbow typeparameter isSmoothly curved, the block calculates the loss coefficient as: K=30fTCangle. The block calculatesCangle, the angle correction factor, from Keller [2] as Cangle=0.0148θ−3.9716⋅10−5θ2, whereθis the value of theBend angleparameter in degrees. The ...
BEND SPECIFICATION Select a Bend—90 degrees standard elbow (K = 0.9) (the default), 45 degrees standard elbow (K = 0.5), or User-defined loss coefficient. For User-defined loss coefficient enter a Loss coefficient Kf (dimensionless). CONSTRAINT SETTINGS To display this section, click the ...
An additional force is imposed when otherwise straight pipe is forced to bend in a curved hole section. It is often referred to as a capstan force or belt effect, and it is normal to the centerline of the pipe. The vector sum of this capstan force and normal component of the buoyed wei...
R1 = bend radius of welding elbow or pipe bend D = outside diameter of the pipe W = weld joint strength reduction factor Y = coefficient from Code Table 304.1.1 S = stress value for material from Table A-1 at the maximum temperature E = quality factor from Table A-1A or A-1B Add...
bend into double-wall configurations with the fold juxtaposed to the opposite side portion of the tubular cross-section, secondly collapsing the opposite side sections of double-wall configurations laterally toward the plane of bilateral symmetry by bending the double-wall configuration of the opposite ...
shaping rollers, a deformable portion of the tubular cross-section is depressed generally diametrically toward the backup portion thereof and substantially along the plane of bilateral symmetry, so that opposite side sections of the tubular cross-section bend into double wall configurations with a fold...