Numerical and experimental research the pressure drop in a pipe of variable cross section

Experimental research of the pressure drop in the flow of fluid in a pipe that has several local hydraulic resistance. The local hydraulic resistance were the elbow, the sudden expansion, sudden contraction, coupling and sudden turn. The experimental setup also included piezometers, variable area flowmeter, pressure and drain tanks, pump, bimetal thermometer, and a system of valves. The relative position of the elements shown in the hydraulic diagram of the experimental setup. As the liquid medium used water. Designed physical and 3D model of the fluid. Selected tetrahedral mesh model of building bulk. Choice of physical parameters correspond turbulent flow, constant density, steady-state flow with a given mass flow at the inlet section of the pipeline. Volume control method of approximation of the Navier-Stokes equations used for the numerical simulation. Simulation done in the software STAR-CCM+. Found a field of pressure distribution and velocity of the moving fluid. The possibility of an accurate determination of the coefficients local hydraulic resistance of bodies of complex geometry.