Abstract
In this study, an integrated CFD analysis implementation were conducted for the commercial micro turbojet engine, JetCat P300-RX, which has a maximum thrust of 300 N. A three-dimensional integrated analysis model includes major components of the micro gas turbine engine. A steady-state RANS (Reynolds Averaged Navier-Stokes) analysis was performed using ANSYS CFX V20.2. For the turbulence model and combustion model, the k-ω SST (Shear Stress Transport) model and the EDM (Eddy Dissipation Model) model were applied, respectively. The analysis were performed for various engine speed (RPM) conditions from 30,000 RPM to 106,000 RPM and various altitude conditions from sea level to 3.0 km. And the analysis results were verified by comparing with the actual engine test results. The comparison results showed that most of the performance parameters, such as thrust, exhaust gas temperature (EGT), air flow rate, and compression ratio in all analysis conditions (RPM and altitude) are in good agreement with the ground test results of commercial engines.
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