Cours D Hydraulique Agricole.pdf May 2026

Understanding Agricultural Hydraulics: A Comprehensive Guide

1. Major Losses: Friction between the water and the pipe walls. This is calculated using formulas like Darcy-Weisbach or Hazen-Williams.
2. Minor Losses: Energy lost due to turbulence at valves, bends, and fittings.

• Search: site:univ-agricole.fr "Cours D Hydraulique Agricole.pdf"
• Look for lecture series from Agrocampus Ouest, Montpellier SupAgro.

• Tile drainage design for waterlogged soils.
• Hooghoudt’s equation for steady-state drainage.
• Drain spacing and depth calculations.

2. Statique des fluides (Hydrostatique)

Formula

| | Application | | --- | --- | | Q = A * V | Flow rate (m³/s) = Area × Velocity | | V = (1/n) * R^(2/3) * S^(1/2) | Manning’s equation for open canals | | h_f = f * (L/D) * (V²/2g) | Darcy-Weisbach friction loss | | H = H_static + Σh_f | Total pump head | | q = k * h^x | Drip emitter flow vs. pressure |