Скачать или смотреть 10_Why Tortuosity Matters

The video explains that tortuosity, which quantifies the convoluted nature of pathways within a porous material, has been a source of confusion, being defined in two different ways: Geometric Tortuosity and the more physically robust Tortuosity Factor. Using the analogy of Google Maps versus Waze, the text clarifies why the "shortest path" geometric approach is fundamentally flawed for predicting real-world fluid transport, as it fails to account for constrictions and the contribution of all parallel pathways. Furthermore, the article describes the application of this concept to complex materials like shale, including advanced simulations, such as the Knudsen Tortuosity Factor, necessary for correctly modelling gas flow in nano-scale pores where gas molecule-wall collisions become dominant. Ultimately, the piece positions the evolution of this measurement as a transition from merely visualising structures to performing predictive, accurate science.