Uploaded August 2026 | Updated September 2026, 1 week ago
This FLOW-3D simulation shows a classic 4:1 contraction flow featuring a sharp corner, a standard benchmark case in computational rheology. Using the standard stress tensor formulation, the simulation becomes unstable after 3 seconds of flow time due to exponential growth of the elastic stress. The log-conformation tensor formulation remains stable throughout, enabling robust simulation of the same flow.
Learn more about the Viscoelastic Flow Model: flow3d.com/modeling-capabilities/viscoelastic-flow-model
This FLOW-3D simulation shows a classic 4:1 contraction flow featuring a sharp corner, a standard benchmark case in computational rheology. Using the standard stress tensor formulation, the simulation becomes unstable after 3 seconds of flow time due to exponential growth of the elastic stress. The log-conformation tensor formulation remains stable throughout, enabling robust simulation of the same flow.
Learn more about the Viscoelastic Flow Model: flow3d.com/modeling-capabilities/viscoelastic-flow-model
