방법 비교
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| 교통 흐름 (LWR 모델)× | 하디 크로스 방법× | MODFLOW 지하수 모델링× | |
|---|---|---|---|
| 분야 | 토목공학 | 토목공학 | 토목공학 |
| 계열 | Process / pipeline | Process / pipeline | Process / pipeline |
| 기원 연도≠ | 1955 | 1936 | 1984 (original release); continuously updated through MODFLOW-6 (2017) |
| 창시자≠ | M. J. Lighthill and G. B. Whitham | Hardy Cross | Michael G. McDonald and Arlen W. Harbaugh (U.S. Geological Survey) |
| 유형≠ | Macroscopic traffic flow modeling using conservation laws | Iterative method for pipe network flow distribution | Numerical groundwater flow simulation |
| 원전≠ | Lighthill, M. J., & Whitham, G. B. (1955). On kinematic waves I. Flow movement in long rivers. Proceedings of the Royal Society A, 229(1178), 281-316. DOI ↗ | Cross, H. (1936). Analysis of flow in networks of conduits or conductors. University of Illinois Bulletin, 34(17), 3-29. link ↗ | Harbaugh, A. W. (2005). MODFLOW-2005, the U.S. Geological Survey modular ground-water model — the Ground-Water Flow Process. U.S. Geological Survey Techniques and Methods 6-A16. link ↗ |
| 별칭≠ | LWR model, Traffic wave, Kinematic wave theory | Cross method, Moment distribution method, Iterative balancing | MODFLOW-2005, MODFLOW-6, modular groundwater flow model, USGS groundwater model |
| 관련≠ | 3 | 3 | 0 |
| 요약≠ | The Lighthill-Whitham-Richards (LWR) model is a macroscopic traffic flow model that treats traffic as a compressible fluid, applying conservation of vehicles and a flow-density relationship. Introduced independently by Lighthill and Whitham (1955) and Richards (1956), the model predicts traffic wave propagation, congestion formation, and bottleneck behavior on highways. | The Hardy Cross method is an iterative technique for solving steady-state flow distribution in pipe networks, originally developed for water distribution systems. Introduced by Hardy Cross in 1936, this method balances flow continuity and pressure head constraints through successive iterations, making it ideal for hand calculations and gaining physical insight into network behavior. | MODFLOW is the U.S. Geological Survey's open-source, modular finite-difference model for simulating three-dimensional groundwater flow through porous media. First released in 1984 and continuously updated — most recently as MODFLOW-6 — it is the global standard for quantitative hydrogeological analysis, widely used in civil engineering, environmental consulting, water-resource management, and groundwater contamination studies. |
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