Compressible Flows

Dear Colleagues,

In recent years, fluid dynamics has undergone a profound transformation, driven by the widespread adoption of computational fluid dynamics methods, the relentless evolution of high-performance numerical algorithms, and the increasing integration of advanced experimental activities. However, detailed and comprehensive numerical descriptions of compressible or shock-dominated flows or accurate experimental campaigns represent a real challenge in contemporary engineering sectors. The following are a few examples of compressible streams that play a crucial role in engineering prototyping and design methodologies. First and foremost, in the aerospace sector, compressible flows are a keystone in the design and operation of both aircraft and spacecraft. They are pivotal in optimizing the aerodynamic performance influencing the design of airfoils, nozzles, and propulsion systems. In automotive engineering, instead, they underpin the development of efficient engines, exhaust systems, and turbochargers. Even within the energy sector, adequately addressing compressible flows is indispensable as they inform the design and operation of gas turbines, natural gas pipelines, and supersonic compressors. Knowledge on compressible streams is critical for transporting natural gas over long distances, considering the behavior of gases under varying pressures and temperatures. Additionally, in environmental engineers, compressibility can occur concerning, for instance, air pollution dispersion and how pollutants disperse in the atmosphere at different altitudes and under various weather conditions. Finally, we cannot fail to mention that recent hypersonic technologies, including advanced aircraft and space vehicles, are the subject of ongoing studies intending to revolutionize transportation. 

Thus, this Special Issue aims to explore various topics related to compressible flows from a broad perspective. In particular, the intention is for this Special Issue to provide a platform for authors in compressible flow engineering to submit their work, whether it involves validating or analyzing numerical models in academic or real-world scenarios or proposing new experimental methods to investigate the complexities behind compressible flow deployments.

Thus, authors are strongly encouraged to contribute innovative ideas in the realm of compressible flow modeling or experimental investigations, which may encompass developing novel numerical approaches or introducing fresh experimental paradigms. Consequently, the potential topics for this Special Issue encompass, but are not confined to, the following areas:

1.  RANS/LES/DNS simulations of compressible flows;
2.  Gas turbine technologies;
3.  Modeling of aerodynamics and turbomachinery;
4.  Rigorous validation of numerical experimental methods;
5.  Exploration of super/hypersonic flows;
6.  Cutting-edge optimization strategies.

Dr. Francesco De Vanna
Guest Editor

Dr. Filippo Avanzi
Guest Editor Assistant

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