Analysis of gas flows in ships turbines

• Main Author: V. Aftaniuk
• Format: Article
• Language: English
• Published: Naval Academy Press 2019-06-01
• Series: Scientific Bulletin of Naval Academy
• Online Access: https://www.anmb.ro/buletinstiintific/buletine/2019_Issue1/01_MES/166.pdf

In this paper, a comparison was made of an experimental study of gas flows and CFD simulation of turbine blades steam turbines for ships. For CFD simulation to develop solid models, samples were taken from three blades similarly studied in the experiment. An analysis of experimental data and CFD simulation results of the gas flow near lattice the considered type shows the inappropriateness of their application at supersonic speeds. The calculations performed on the CFD model show that the use of CFD modeling methods allows, at the early stages of designing turbine blades, to select the most optimal (in terms of energy losses) forms of profiles for specific modes of operation of the ship's turbine. Further improvement of the profiles that have passed the preliminary calculation check is advisable to conduct on the basis of more detailed experimental tests to obtain dependences of losses in the lattice, the exit angle of the flow from the parameters of the lattice, and the angle of gas flow.