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An Evapotranspiration Evolution Model as a Function of Meteorological Variables: A CFD Model Approach

Author

Listed:
  • Víctor Manuel Fernández-Pacheco

    (Energy Department, University of Oviedo, Wifredo Ricart s/n, 33204 Gijón, Spain)

  • Elena Antuña-Yudego

    (TSK Electrónica y Electricidad S.A., Ada Byron, 220, 33203 Gijón, Spain)

  • Juan Luis Carús-Candás

    (TSK Electrónica y Electricidad S.A., Ada Byron, 220, 33203 Gijón, Spain)

  • María José Suárez-López

    (Energy Department, University of Oviedo, Wifredo Ricart s/n, 33204 Gijón, Spain)

  • Eduardo Álvarez-Álvarez

    (Energy Department, University of Oviedo, Wifredo Ricart s/n, 33204 Gijón, Spain)

Abstract

The study of meteorological variables and evapotranspiration in open spaces using the three spatial dimensions represents a technical challenge since the high computational resources required only enable the problem to be addressed on a very small scale. This research sets forth a three-dimensional computational fluid dynamics numerical model, characterized by its simplicity, which allows problems to be addressed over large areas (scale of kilometres). Similarly, the corresponding design and software developments carried out allow for a more dynamic introduction of meteorological and evapotranspiration boundary conditions. In the numerical domain created, the Reynolds-Averaged Navier–Stokes equations are solved, supplemented by a multispecies model (to distinguish the movements of dry air, evapotranspiration and air humidity) and one of solar radiation. The numerical model was applied to a semi-arid area in southern Spain, obtaining the three-dimensional special evolution of evapotranspiration, temperature, air humidity and wind velocity, specifically concerning its variation in horizontal and vertical planes of the three-dimensional domain, as well as vertical profiles at discrete points.

Suggested Citation

  • Víctor Manuel Fernández-Pacheco & Elena Antuña-Yudego & Juan Luis Carús-Candás & María José Suárez-López & Eduardo Álvarez-Álvarez, 2022. "An Evapotranspiration Evolution Model as a Function of Meteorological Variables: A CFD Model Approach," Sustainability, MDPI, vol. 14(7), pages 1-15, March.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:7:p:3800-:d:777836
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    References listed on IDEAS

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    1. Helman, David & Bonfil, David J. & Lensky, Itamar M., 2019. "Crop RS-Met: A biophysical evapotranspiration and root-zone soil water content model for crops based on proximal sensing and meteorological data," Agricultural Water Management, Elsevier, vol. 211(C), pages 210-219.
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