en Research Paper Research Paper The flow characteristics of triangular weir are studied under free and submerged flow condition. This paper reports the results of an investigation carried out to establish the stage-discharge relationship for sharp and broad crested triangular weir. The stage-discharge relationships are deduced by the application of the
theorem of the dimensional analysis and the incomplete self-similarity theory coupled with experimental data. Triangular weir, sharp crested, broad crested, free flow, submerged flow, -theorem, Incomplete self-similarity. 1 7 http://ijce.iust.ac.ir/browse.php?a_code=A-10-351-1&slc_lang=en&sid=1 Masoud Ghodsian ghods@modares.ac.ir 180031947532846005816 180031947532846005816 Yes