- Tytuł:
- The Use of the Inverse Problem Methodology in Analysis of Fluid Flow Through Granular Beds With Non-Uniform Grain Sizes
- Autorzy:
-
Sobieski, Wojciech
Trykozko, Anna - Tematy:
-
granular media
reverse problem
Darcy
Forchheimer - Pokaż więcej
- Wydawca:
- Uniwersytet Warmińsko-Mazurski w Olsztynie
- Powiązania:
- https://bibliotekanauki.pl/articles/2081496.pdf Link otwiera się w nowym oknie
- Opis:
- The pressure drop during water flow through two gravel beds with 2-8 and 8-16 [mm] grain size was measured across a wide range of filtration velocities, and the optimal method for calculating the coefficients for Darcy’s law and Forchheimer’s law was selected. The laws and the experimental data were used to develop a computational program based on the Finite Element Method (FEM). The results were compared, and errors were analyzed to determine which law better describes flow data. Various methods of measuring porosity and average grain diameter, representative of the sample, were analyzed. The data were used to determine the limits of applicability of both laws. The study was motivated by the observation that computational formulas in the literature produce results that differ by several orders of magnitude, which significantly compromises their applicability. The present study is a continuation of our previous research into artificial granular materials with similarly sized particles. In our previous work, the results produced by analytical and numerical models were highly consistent with the experimental data. The aim of this study was to determine whether the inverse problem methodology can deliver equally reliable results in natural materials composed of large particles. The experimental data were presented in detail to facilitate the replication, reproduction and verification of all analyses and calculations.
- Dostawca treści:
- Biblioteka Nauki
Artykuł