Modelling of bubble plume destratification using DYRESM

H. Moshfeghi, A. Etemad-Shahidi, Jorg Imberger

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    Since North Pine Dam is a source of drinking water supply, bubble plume destratification system was chosen to counter the effects of stratification. A numerical model called Destrat was used to design a bubble plume system which destratifies the strongest observed stratification in the reservoir within 3 weeks. Field observations, however, showed that the destratification of North Pine Dam occurred slower than predicted by Destrat. Therefore, Destrat was modified for future applications by including the effect of solar radiation as a source of stratification. The Dynamic Reservoir Simulation Model (DYRESM) was then run to model the destratification of North Pine Dam. The results of this simulation were not in agreement with the field data as DYRESM overestimated the destratification caused by the bubble plume. A comparison of the field and simulated results indicated that the volume of water entrained by bubble plume in the DYRESM is overestimated. Reducing the entrainment coefficient of air bubbles produced a closer agreement between the field data and the simulation results.
    Original languageEnglish
    Pages (from-to)37-46
    JournalJournal of Water Supply, Research and Technology-AQUA
    Volume54
    Issue number1
    Publication statusPublished - 2005

    Fingerprint

    bubble
    plume
    Dams
    stratification
    dam
    modeling
    simulation
    Air entrainment
    Solar radiation
    Water supply
    air bubble
    Potable water
    Numerical models
    entrainment
    solar radiation
    Air
    Water
    water
    effect

    Cite this

    Moshfeghi, H., Etemad-Shahidi, A., & Imberger, J. (2005). Modelling of bubble plume destratification using DYRESM. Journal of Water Supply, Research and Technology-AQUA, 54(1), 37-46.
    Moshfeghi, H. ; Etemad-Shahidi, A. ; Imberger, Jorg. / Modelling of bubble plume destratification using DYRESM. In: Journal of Water Supply, Research and Technology-AQUA. 2005 ; Vol. 54, No. 1. pp. 37-46.
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    abstract = "Since North Pine Dam is a source of drinking water supply, bubble plume destratification system was chosen to counter the effects of stratification. A numerical model called Destrat was used to design a bubble plume system which destratifies the strongest observed stratification in the reservoir within 3 weeks. Field observations, however, showed that the destratification of North Pine Dam occurred slower than predicted by Destrat. Therefore, Destrat was modified for future applications by including the effect of solar radiation as a source of stratification. The Dynamic Reservoir Simulation Model (DYRESM) was then run to model the destratification of North Pine Dam. The results of this simulation were not in agreement with the field data as DYRESM overestimated the destratification caused by the bubble plume. A comparison of the field and simulated results indicated that the volume of water entrained by bubble plume in the DYRESM is overestimated. Reducing the entrainment coefficient of air bubbles produced a closer agreement between the field data and the simulation results.",
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    Moshfeghi, H, Etemad-Shahidi, A & Imberger, J 2005, 'Modelling of bubble plume destratification using DYRESM' Journal of Water Supply, Research and Technology-AQUA, vol. 54, no. 1, pp. 37-46.

    Modelling of bubble plume destratification using DYRESM. / Moshfeghi, H.; Etemad-Shahidi, A.; Imberger, Jorg.

    In: Journal of Water Supply, Research and Technology-AQUA, Vol. 54, No. 1, 2005, p. 37-46.

    Research output: Contribution to journalArticle

    TY - JOUR

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    AU - Moshfeghi, H.

    AU - Etemad-Shahidi, A.

    AU - Imberger, Jorg

    PY - 2005

    Y1 - 2005

    N2 - Since North Pine Dam is a source of drinking water supply, bubble plume destratification system was chosen to counter the effects of stratification. A numerical model called Destrat was used to design a bubble plume system which destratifies the strongest observed stratification in the reservoir within 3 weeks. Field observations, however, showed that the destratification of North Pine Dam occurred slower than predicted by Destrat. Therefore, Destrat was modified for future applications by including the effect of solar radiation as a source of stratification. The Dynamic Reservoir Simulation Model (DYRESM) was then run to model the destratification of North Pine Dam. The results of this simulation were not in agreement with the field data as DYRESM overestimated the destratification caused by the bubble plume. A comparison of the field and simulated results indicated that the volume of water entrained by bubble plume in the DYRESM is overestimated. Reducing the entrainment coefficient of air bubbles produced a closer agreement between the field data and the simulation results.

    AB - Since North Pine Dam is a source of drinking water supply, bubble plume destratification system was chosen to counter the effects of stratification. A numerical model called Destrat was used to design a bubble plume system which destratifies the strongest observed stratification in the reservoir within 3 weeks. Field observations, however, showed that the destratification of North Pine Dam occurred slower than predicted by Destrat. Therefore, Destrat was modified for future applications by including the effect of solar radiation as a source of stratification. The Dynamic Reservoir Simulation Model (DYRESM) was then run to model the destratification of North Pine Dam. The results of this simulation were not in agreement with the field data as DYRESM overestimated the destratification caused by the bubble plume. A comparison of the field and simulated results indicated that the volume of water entrained by bubble plume in the DYRESM is overestimated. Reducing the entrainment coefficient of air bubbles produced a closer agreement between the field data and the simulation results.

    M3 - Article

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    SP - 37

    EP - 46

    JO - Journal of Water Supply, Research and Technology-AQUA

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