Welcome to the RAS Solution Forums HEC-RAS Help Manning’s n in 2D modeling

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  • #6329
    Jose A.
    Participant

    Hi all,

    I remember reading a forum post (here or in Linkedin’s Hydraulic/Hydrologic modelers forum) about the difference in manning’s n in 1D models vs 2D models. Could someone point me where to look for this information. Any help would be greatly appreciated.

    J.

    #10338
    cameron
    Participant

    Manning’s roughness is a subject people have some strong opinions on. I say look at the HEC-RAS 2D manual or the ARR (http://arr.ga.gov.au/revision-projects/project-list/projects/project-15) manuals. You could also look at the FLO-2D manual.

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