Saadi, ManelBounab, Nadia: Supervisor2024-06-302024-06-302024-06-05https://dspace.univ-msila.dz/handle/123456789/42922In this thesis , we have studied numerically a problem of two-dimensional potential flow in a channel with trapezoidal obstacle in the bottom , witch makes an angle = with the axis (xox ) taking into account the effect of gravity but surface tension efforts are neglected. We have used some conformal transformations and series truncation technique for obtain the numerical solution.enFree surfacePotential flowSchwartz –ChristoffelTransformationTruncation of the seriesFroude numberThesis