Abstract Free overfalls are hydraulic structures used in flood control, water supply, irrigation, and flow measurements. The systems of free overfall depend on rectangular end shape. studies that dealt with triangular crest few almost non-existent. In this study, a end-shape design uses multiple linear regression (MLR) group method data handling (GMDH) methods for four models six sub-models. Th...

A detailed experimental laboratory analysis of the effect crest shape on discharge coefficient sharp-crested weirs is presented in paper. The experiments were conducted for four different shapes. and analyses show that capacity, particular, are significantly affected by weir height. It stated conclusion rounded has highest capacity. In practice, sharp crested generally preferred to other shapes...

Louvre openings are widely used for ventilation in residences at tropical regions. Traditional households rely primarily on natural cooling instead of using air conditioners throughout the year. Hence, a design strategy that maximizes rate with an accurate discharge coefficient is necessary. The traditional window without louvre 0.6. However, studies coefficients sashes lacking. Discharge will ...