1. General Model Information

Name: ISU Shelterbelt Turbulence Model

Acronym: ISU

Main medium: air
Main subject: biogeochemistry
Organization level: ecosystem
Type of model: 2D
Main application:
Keywords: atmospheric, microclimate change, shelterbelt design, field scale, steady state, design tool


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The ISU (Iowa State University) Shelterbelt Turbulence Model is a simulation of aerodynamic flow field produced by an agricultural shelterbelt or windbreak. It is used to determine the optimum shelterbelt design for creating specific microclimate changes and determines surface flux characteristics for different land-use characteristics under climate change scenarios.

Model input includes field measurements, windspeed profiles upwind of a shelterbelt, and the porosity of the shelterbelt. The output is the vertical and horizontal fields of wind speed and turbulence in the lee side of the shelterbelt. The model runs on a one kilometer scale but can also be used for a network of shelterbelts covering several kilometers.

II. Technical Information

II.1 Executables:

Operating System(s): DEC workstation

II.2 Source-code:

Programming Language(s): FORTRAN

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

Alkhalil, A., 1994. Flow past an agricultural shelter: Measurements and modelresults. Ph.D. Dissertation. Iowa State University, Ames. 99 pp.

V. Further information in the World-Wide-Web

VI. Additional remarks

Last review of this document by: T. Gabele: 07.07. 1997 -
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:45 CEST 2002

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