William Stephen Childress | |
|---|---|
| Nationality | American |
| Alma mater | California Institute of Technology Princeton University |
| Scientific career | |
| Fields | Mathematics Applied Mathematics |
| Institutions | Courant Institute of Mathematical Sciences New York University |
| Doctoral advisor | Paco Axel Lagerstrom |
William Stephen Childress is an American applied mathematician, author and professor emeritus at the Courant Institute of Mathematical Sciences. He works on classical fluid mechanics, asymptotic methods and singular perturbations, geophysical fluid dynamics, [1] magnetohydrodynamics and dynamo theory, mathematical models in biology, [2] and locomotion in fluids. [3] He is also a co-founder of the Courant Institute of Mathematical Sciences's Applied Mathematics Lab. [4]
A fin is a thin component or appendage attached to a larger body or structure. Fins typically function as foils that produce lift or thrust, or provide the ability to steer or stabilize motion while traveling in water, air, or other fluids. Fins are also used to increase surface areas for heat transfer purposes, or simply as ornamentation.
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The Arnold–Beltrami–Childress (ABC) flow or Gromeka–Arnold–Beltrami–Childress (GABC) flow is a three-dimensional incompressible velocity field which is an exact solution of Euler's equation. Its representation in Cartesian coordinates is the following:
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