B-18 3次元非定常NSコードを用いたファンフラッタの数値解析(空力IV,一般講演)

概要

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Recently, the demand of making a higher load and more efficient jet engine has strengthened further. In the design of fan and compressor blades, flutter prediction is a critical factor. At present, the flutter prediction method is based on linearized theory. But the linearized theory is not good for the flutter in the high load region. Therefore, a highly accurate prediction method is necessary. A new CFD code is developed based on UPACS (JAXA CFD code). The code is capable for simulating a vibrating cascade. The code simulates simulated a transonic stall flutter, which is experienced in a rig test.
公益社団法人日本ガスタービン学会の論文
2007-09-01