w by the nozzle. The temperature remains constant through the nozzle while the pressure and velocity of the flow will change as dictated by the design of the nozzle. The nozzle is used to produce thrust and used to conduct the exhaust gases back to the free air. For the analysis of the turbojet, several assumptions were made and are as follows:1. Air behaves as a compressible, ideal gas.2.Flow through the diffuser, nozzle, compressor and combustor isisentropic.3. The engine is insulated, there is no loss of heat to the surrounding air.4. The engine is operating at steady state.5. Work by the turbine is equal to the work required by the compressor.6. Pressure through the compressor / burner is constant.7.Kinetic and potential energy are zero except at the intake of the inlet and the exit of the nozzle. Using the ProgramThe program is a MATLAB script so the first thing that must be done to run it is to start MATLAB. On a *nix system, the best way to run the program is to start MATLAB in the directory with the thermo.m and the findvf.m files. After MATLB starts type thermo (or thermot3 to find Vf using T3 instead of Qin), at the MATLAB prompt. On Microsoft Windows systems, make sure the path containing the thermo.m, thermot3.m, findvf.m and findvft3.m files is in the MATLAB path and then type thermo at the MATLAB prompt.Once the program is running, the user will have the option to find Vf for a system without an afterburner, a system with an afterburner or to quit. Once the user has made their selection they will be prompted for the essential values needed to calculate Vf. When this is done the value for Vf will be displayed and if the system with the afterburner is selected, then the value for Vf with and without the afterburner will be displayed. Entering the compression ratio is optional and if it is not entered, the program will find the maximum value for Vf and the compression ratio that will give the maximum value.Fina...
