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The creeping flow model takes the dynamic viscosity as a coefficient,
coefficientFunctions: { viscosity }, a positive number or a function of
(x, y) evaluated at every integration point. It defaults to 1, so
existing models give the same results.
Tests: check that a viscosity (number and function) leaves the lid-driven
cavity velocity unchanged and scales the pressure, and that a varying
viscosity gives the same solution through the worker. Examples: set the
viscosity in the lid-driven cavity.
Closes #102
nikoscham
deleted the
feature/allow-setting-the-viscosity-in-the-creeping-flow-model
branch
October 30, 2026 06:56
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The creeping flow model takes the dynamic viscosity as a coefficient, coefficientFunctions: { viscosity }, a positive number or a function of (x, y) evaluated at every integration point. It defaults to 1, so existing models give the same results.
Tests: check that a viscosity (number and function) leaves the lid-driven cavity velocity unchanged and scales the pressure, and that a varying viscosity gives the same solution through the worker. Examples: set the viscosity in the lid-driven cavity.
Closes #102