Computational analysis of flow through a transonic compressor rotor
Bochette, Nikolaus J.
MetadataShow full item record
As the United States Navy prepares to field a single engine jet, the F-35C Joint Strike Fighter, it is important that the causes of the .pop-stall. occurrence be understood. This problem arises as the jet engine ingests steam just prior to being released from the catapult. In examining this problem two Computational Fluid Dynamic (CFD) codes have been used by the Naval Postgraduate School to predict the performance of a transonic compressor rotor that is being tested with steam ingestion. Both codes, developed by NASA, provide a baseline that experimental results and new CFD codes can be compared with. Ansys Inc., a commercial Computer Aided Design (CAD) software company, has developed a new code that allows modeling of two phase flow. ICEM-CFD and CFX-5, both Anys Inc. programs that can model turbomachinery blade passages similar to that used by the NASA codes, were used in the present study. Comparisons were made with the experimental data and the predictions made by NASA codes as part of the initial modeling of the transonic compressor rotor flow field.
Approved for public release, distribution unlimited
Showing items related by title, author, creator and subject.
Fan, Yue Sang (Monterey, California. Naval Postgraduate School, 1995-03);Viscous drag in the transonic regime over an axi-symmetric body with a unique aft contour surface is investigated. The forebody is composed of an arbitrary ellipsoid. The unique aft contour surface has been obtained by an ...
Platzer, Max Franz (Monterey, California. Naval Postgraduate School, 1972-12); NPS-57EL721201AThe report presents a brief summary of the past progress, current status and development trends of transonic aerodynamics. The main methods to compute steady and unsteady transonic flows are reviewed. Also, recent advances ...
Villescas, Ivan J. (Monterey, California. Naval Postgraduate School, 2005-09);Investigating the effect of steam ingestion into an aircraft jet engine is necessary to improve understanding of stall and surge in transonic axial compressors. Specifically, to understand the "pop stall" phenomenon ...