How does fluid mechanics apply to galaxy dynamics?

Astrophysical fluid dynamics is a branch of modern astronomy that applies fluid mechanics to understand the motion of matter in outer space. It uses fundamental mathematical frameworks like the Navier-Stokes equations, continuity equations, and Euler's equations to model cosmic phenomena. Key applications range from explaining the behavior of stars and interstellar nebulae to examining accretion disks, astrophysical jets, and the fluid dynamics of entire galaxies.

What we know

• Astrophysical fluid dynamics is a branch of modern astronomy that deals with the motion of fluids in outer space using fluid mechanics. [1, 2]
• The subject utilizes fundamental equations including continuity equations, the Navier-Stokes equations, and Euler's equations of collisional fluids. [2]
• Applications of this field include the dynamics of stellar systems, accretion disks, astrophysical jets, and the fluid dynamics of galaxies. [2]
• Fluid dynamics principles also help in understanding nebulae in interstellar space. [4, 5]

Where to go next

• how it workedWhat are the Navier-Stokes equations?
• a case in pointHow do astrophysical jets form?
• the bigger pictureWhat is fluid mechanics?
• compared withHow does geophysics relate to astrophysical fluid dynamics?
• whenWhen was astrophysical fluid dynamics recognized as a distinct field?
• an unexpected connectionHow does fluid dynamics help model fission weapons?The mathematical frameworks describing large-scale cosmic gas flows and nebulae also apply to modeling the extreme mechanics of fission weapon detonations.

Sources

• [1]astrophysical fluid dynamics (Wikidata Q25221188) · CC0 1.0
• [2]Astrophysical fluid dynamics · CC BY-SA 4.0
• [3]Geophysical & Astrophysical Fluid Dynamics · CC BY-SA 4.0
• [4]Fluid dynamics · CC BY-SA 4.0
• [5]Outline of fluid dynamics · CC BY-SA 4.0

Your path

1. What was the history and legacy of Roman law?
2. /How do cognitive biases drive belief in pseudoscience?
3. /How does fluid mechanics apply to galaxy dynamics?