U.S. media questions the Chinese software's defect analysis of the B-21.

According to U.S. media "1945," China has developed a PADJ-X software, which is a high-fidelity digital simulation platform. In its modeling and analysis of the B-21, it used a small amount of data to find that with only minor modifications, the performance could be improved.

What does this mean? If this study is scientifically reliable, it means that China has surpassed the United States in research on flying wing configurations.

Remember, the South China Morning Post once reported on this, stating that the PADJ-X software modeled the B-21 and analyzed the airflow distribution around the flying wing configuration, thus simulating stability and aerodynamic efficiency under different flight conditions, thereby inferring possible structural or performance trade-offs of the B-21. This means that China's military industry has thoroughly understood the B-21.

The media "1945" obviously isn't convinced, arguing that modeling doesn't equal real-world conditions. The predecessor of the B-21 is the B-2, more accurately, it is an optimized smaller version of the B-2, and the B-2 has accumulated a large amount of flight data and experience over 30 years of service, which cannot be reflected by a simulation model.

This media clearly underestimates China's efforts in aerodynamics. China is currently the country with the most flying wing aircraft, including a large number of drones, unmanned bombers/reconnaissance aircraft similar in size to the B-2 and B-21, as well as two sixth-generation fighters that had their first flights last year. The development and manufacturing of these aircraft are based on a large amount of flight data, and these flight data come from a large number of high-fidelity wind tunnels (reproduced wind tunnels).

In summary, "1945" certainly acknowledges that the B-2 has accumulated a large amount of flight data for the B-21, but this is limited to this type of flying wing. China's research on flying wings is based on various flying wing analyses, which is why different types of flying wings can learn from each other. And the PADJ-X software is designed based on such principles.

Original article: toutiao.com/article/1859788311563594/

Statement: This article represents the views of the author.