UNSAT-HV2.0. Water and Heat Balance Model for Predicting Drainage Below the Plant Root Zone
- Pacific Northwest Lab., Richland, WA (United States)
UNSAT-H Version 2.0 is a one-dimensional model that simulates the dynamic processes of infiltration, drainage, redistribution, surface evaporation, and the uptake of water from soil by plants. The model was developed for assessing the water dynamics of arid sites used or proposed for near-surface waste disposal. In particular, the model is used for simulating the water balance of cover systems over buried waste and for estimating the recharge rate (i.e., the drainage rate beneath the plant root zone when a sizable vadose zone is present). The mathematical base of the model are Richards` equation for water flow, Ficks` law for vapor diffusion, and Fouriers law for heat flow. The simulated profile can be homogeneous or layered. The boundary conditions can be controlled as either constant (potential or temperature) or flux conditions to reflect actual conditions at a given site.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE Office of Civilian Radioactive Waste Management, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 139459
- Report Number(s):
- ESTSC-000537D860000
- Resource Relation:
- Other Information: DN: Each input file must have the file extension (filename).INP. this file is processed with DATAINH.EXE to produce a binary input file with the extension (filename).BIN. The main program, UNSATH.EXE, reads the file .BIN, operates, and then produces an output file with the file extension .RES. The DATAOUT.EXE program reads the file .RES and gives the user a choice of viewing the results on screen or generating text files that can easily be imported to any commercially available plotting package (e.g., Excel; 1-2-3).; PBD: 1 Nov 1989
- Country of Publication:
- United States
- Language:
- English
Similar Records
UNSAT-H Version 3.0: Unsaturated Soil Water and Heat Flow Model Theory, User Manual, and Examples
UNSAT-H Version 3.0:Unsaturated Soil Water and Heat Flow Model: Theory, User Manual, and Examples