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Calculates the friction head loss in a pipe based on the empirical Flamant equation. This formula is highly recommended for small-diameter plastic pipes (typically < 50 mm) commonly used in micro-irrigation systems.

Usage

calc_head_loss_flamant(length, flow, diameter, coef = 0.000135)

Arguments

length

Numeric. The length of the pipe (meters).

flow

Numeric. The volumetric flow rate (cubic meters per second).

diameter

Numeric. The internal diameter of the pipe (meters).

coef

Numeric. The Flamant roughness coefficient (b). Default is 0.000135, which is typical for smooth plastic pipes (e.g., PVC, PE).

Value

A numeric vector representing the head loss in meters.

Examples

# Calculate head loss for a 50m PE pipe with 15mm diameter and 0.2 L/s flow
calc_head_loss_flamant(length = 50, flow = 0.0002, diameter = 0.015)
#> [1] 6.389998