Isotropic turbulence occurs __________________?
Correct answer: D. Where there is no velocity gradient
- A. None of these
- B. At higher temperatures
- C. Only in Newtonian fluids
- D. Where there is no velocity gradient
Explanation
Isotropic turbulence has statistically equal properties in all directions and is associated in basic treatments with regions having negligible mean velocity gradients. Temperature and whether the fluid is Newtonian do not define isotropy.
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