Parsmehr M, Ghorbani B. Evaluation the effect of attack angle of submerged vanes on reducing scour caused by contraction strand (Case study: contraction to 30 cm). Agr. Adv. [Internet]. 2014Jun.27 [cited 2024Jul.3];3(6):194-201. Available from: http://sjournals.com/index.php/aa/article/view/707