"For over a century, mathematicians and physicists have wrestled with the chaotic nature of fluid movement - how air whirls around airplane wings or water churns in a pipe. Google's DeepMind lab recently made a significant breakthrough in this field, utilizing artificial intelligence. While investors and others question whether AI will be worth the astronomical cost, it's reassuring to see DeepMind working on important stuff like this. This is an example of AI producing something of real value."
"OK, on to the details, with Nora's help. Fluids are so unpredictable that the equations used to model their behavior are impossible to solve completely. To use these equations, physicists must make assumptions such as constant viscosity or a smooth change in pressure. Introducing even simple scenarios can lead to "blow-ups" where the equations predict extreme outcomes such as infinite pressure or an unbelievable surge in velocity."
Fluid movement is chaotic and has long resisted complete mathematical solution, with airflow around wings and water in pipes presenting complex behavior. Existing equations require simplifying assumptions such as constant viscosity or smoothly varying pressure to be useful. Small changes in scenarios can produce "blow-ups" that predict infinite pressure or extreme velocity surges, revealing mathematical and physical instabilities. DeepMind applied artificial intelligence to make a significant advance in modeling or predicting such fluid behavior. The result suggests practical value for AI in scientific problems and potential broad impact on fluid dynamics and physics.
Read at Business Insider
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