llh: Establish the pressure at the start of a lateral line

Description Usage Arguments Value Examples

View source: R/llh.R

Description

Determine the pressure at the start of the lateral line

Usage

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llh(D, K, x, Se, ne, dec, qreq, imax = 100, toler = 1e-10, Hfima = 100,
  Hfimb = 0)

Arguments

D

Diameter in meters

K

Emission coefficient

x

Emission exponent

Se

Emitter spacing in meters

ne

Number of emitters

dec

Slope on the lateral line

qreq

Flow rate required at the emitters in cubic meters per second

imax

Maximum number of iteration

toler

Maximum tolerance

Hfima

Maximum pressure head at the end of the lateral line in meters

Hfimb

Minimum pressure head at the end of the lateral line in meters

Value

Hfim pressure head at the end of the lateral line, qsistema system flow rate, iter number iterations,tempo time

Examples

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llh( D = 0.025, K = 1.053e-6, x = 0.5, Se = 1, ne = 10,
dec = 0.0, qreq = 3.333333e-6, imax = 100, toler = 1e-10,
Hfima = 30, Hfimb = 0)
llh( D = 0.025, K = 1.053e-6, x = 0.5, Se = 1, ne = 10,
dec = 0.04, qreq = 3.333333e-6, imax = 100, toler = 1e-10,
Hfima = 30, Hfimb = 0)
llh( D = 0.025, K = 1.053e-6, x = 0.5, Se = 1, ne = 10,
 dec = -0.04, qreq = 3.333333e-6, imax = 100, toler = 1e-10,
 Hfima = 30, Hfimb = 0)

FernandaFOS/HydIrrig documentation built on Oct. 14, 2019, 3:59 p.m.