Week 2 - Converging diverging nozzle

Week 2 - Converging diverging nozzle

Aim:To simulate airflow through a converging diverging nozzel.

Objectives:

1. To plot the pressure, velocity and temperature variations across the domain
2. To find the variation of Mach number across the domain and at what distance from the inlet does the flow become supersonic.

Given Data:

For the following boundary conditions,

• At Inlet, Pressure = 1atm and Temperature = 300K. The outlet pressure= 0.027 atm.

• In the operating conditions, consider the reference pressure to be zero.

Procedure:

• Geometry creation using spaceclaim

use pull tool create the surface

• Meshing the geometry

create named selection and face sizing

• set up

• solution:

1. The pressure, temperature and velocity variations across the domain

contours:

2.The variation of Mach number across the domain

Results:

• velocity increases with length of the nozzel
• pressure and temperature decreases with the length of the nozzel
• at 0.5 m distance from the inlet the flow become supersonic.

Conclusion:

Simuation of conververgent divergent nozzel has performed successfully.