Evaluation of Modular Channel in Term of Flow Resistance

Performance of drainage system to control storm water discharge is importance to overcome flash flood issue in urban area. The discharge rate of water in the upstream must be significantly reduced at downstream to avoid water overflow. This research will be carried out to evaluate the performance of modular channel in the aspect of flow resistance. As for flow resistance, the performance will be evaluated by the Manning’s n equation. Manning’s n is derived from the Manning Formula. A summary of ranges for Manning's under different slope conditions will be recorded. Other than that, regression analysis will be done to obtain an equation by governing the Manning's n formula