Numerical Simulation of Water Flow in a Venturi Tube Using the Smoothed Particle Hydrodynamics Method - Selected Topics of Computational and Experimental Fluid Mechanics - page 459

L=36cm

D=4.7cm d=1.6 cm

L=10cm L=8.5cm

Fig. 3 Geometry and dimensions of the Venturi tube

Fig. 4 a Flow control valve, b rotameter, c mercury manometer

3 Experimental Setup

The simulations were based in a device of the Chemical Engineering Laboratory
(Universidad de Guanajuato, México), with the geometry and dimensions as shown
in Fig. 3 .
The pressurewasmeasured for different volumetric fluxes. The fluxwas controlled
with a flow control valve (Fig. 4 a) and measured with a rotameter (Fig. 4 b). The dif-
ference of pressure was measured with a mercury manometer evaluating the pressure
in mercury millimeters (Fig. 4 c). The velocity was calculated by the volumetric flow
divided by the transversal area at the throat. The experiment was repeated five times.

4 Numerical Simulations

The numerical simulation was made using the DualSPHysics code that has been
developed on the C++ and CUDA platform for solving the equations on the CPUs and
GPUs processors. A 2D systemwas used in the simulation, with the same dimensions