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| DOI | 10.1016/j.advwatres.2020.103521 |
| Simplified calibration of continuous-time random walk solute transport models | |
| Hansen S.K. | |
| 发表日期 | 2020 |
| ISSN | 0309-1708 |
| 卷号 | 137 |
| 英文摘要 | Continuous-time random walk (CTRW) models of non-Fickian solute transport are defined by a temporal pdf and three parameters: a velocity-like constant, a dispersion-like constant and a “time constant”. Presently, to identify a model, all are jointly calibrated against solute breakthrough data. We show that without loss of generality the time constant can be set to unity and velocity-like and dispersion-like CTRW parameters can be set equal to well-defined classical counterparts, and thus physically pre-constrained. Thus only one entity, the pdf, requires empirical fitting during model calibration, rather than four. Our assertions are backed by numerical analysis. © 2020 |
| 关键词 | DispersionsRandom processesSolute transportClassical counterpartContinuous time random walksContinuous-time random walk modelsEmpirical fittingsModel calibrationSimplified calibrationsSolute transport modelThree parametersContinuous time systemscalibrationmodelingrandom walk methodsolute transport |
| 语种 | 英语 |
| 来源机构 | Advances in Water Resources |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/131849 |
| 推荐引用方式 GB/T 7714 | Hansen S.K.. Simplified calibration of continuous-time random walk solute transport models[J]. Advances in Water Resources,2020,137. |
| APA | Hansen S.K..(2020).Simplified calibration of continuous-time random walk solute transport models.,137. |
| MLA | Hansen S.K.."Simplified calibration of continuous-time random walk solute transport models".137(2020). |
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