Tricomi gas is a fluid model medium used in aerodynamics to approximate the behavior of a real gas when a body moves at a speed close to the speed of sound. It has an equation of state, which in the plane of the hodograph corresponds to the equation of Tricomi . It was introduced in the 1940s in connection with the need to simulate flights at supersonic speeds .
In view of the fundamental importance of the Tricomi equation, researchers in the field of aerodynamics found it necessary to introduce the concept of a model fluid with the equation of state, which corresponds to the Tricomi equation in the plane of the hodograph. Such a liquid is called the Tricomi gas. This model approximates the real gas rather well in regimes close to transonic, but, as expected, at substantially subsonic or supersonic speeds, the model does not reflect the true picture. In 1947, during a visit to Turin, von Karman informed Tricomi of the importance of his equation for aerodynamics. Having learned that the gas named after him has paradoxical properties, Tricomi was not flattered by this and in 1957 published the article “The unusual properties of Tricomi gas”. [one]
Links
- Francesco Giacomo Tricomi (on his ninetieth birthday)
- C. Ferrari, FG Tricomi. Transsonic Aerodynamics, Academic Press, New York, 1968 (traduzione di Aerodinamica transonica, Cremonese, Roma, 1962).