Pipe flow simulation with line probes

A pipe is simulated in Solidworks to make fluid flow through it at 3 different velocities corresponding to the given Reynold\'s numbers 100,1000 and 10000. Line probes are made at 95%, 90% and 85% to check the cut plots at each of these locations. Velocity comparisons are made to compare the velocities at these cut plots.

Specifications of the pipe :-

Length of pipe = 300mm;

External dia. of pipe = 20mm;

Thickness of pipe = 1mm;

Internal dia. of pipe = 18mm.

Characteristics of the fluid :-

Fluid = Water;

Dynamic Viscosity = 8.90 × 10-4 kg /(m.s);

Density = 1000 kg /(m3).

We know that Reynolds number is given by the formula :-

where

ρ = density of fluid;

V = velocity of fluid;

D = internal dia. of the pipe;

μ = dynamic viscosity of fluid.

From the above equation, we can find out the corresponding velocities according to the given Reynold\'s numbers.

Considering the required values, the velocities calculated are :-

Reynold\'s Number	Velocity(m/s)
100	0.0049444
1000	0.0494444
10000	0.4944444

The boundary conditions taken are as follows :-

1. Inlet velocity is selected at the inlet of pipe.
2. Static Pressure is selected at the outlet of pipe.
3. Pipe wall is selected as real wall.

For the Reynold\'s number of 100, cut plots at 285, 270 and 255 are as follows :-

The velocity comparison between the 3 line probes is shown below for Reynold\'s number of 100:-

For the Reynold\'s number of 1000, cut plots at 285, 270 and 255 are as follows :-

The velocity comparison between the 3 line probes is shown below for Reynold\'s number of 1000:-

For the Reynold\'s number of 10000, cut plots at 285, 270 and 255 are as follows :-

The velocity comparison between the 3 line probes is shown below for Reynold\'s number of 10000:-