Spillway berfungsi umtuk melimpahkan kelebihan air yang akan dibuang, sehingga kapasitas bendungan dapat dipertahankan sampai batas maksimum. Penelitian ini bertujuan untuk mengetahui debit banjir serta alternatif dari bangunan pelimpah (Spillway) Bendungan Pamukkulu dengan Tipe Mercu Bulat. Curah hujan rata-rata daerah dihitung metode Polygon Thiessen. Dan dianalisis perhitungan curah rancanga...

Pre-release is the discharge from a reservoir before flood to enhance control capability. Its success depends on performance of rainfall forecasting. However, there little information regarding causal relationship between its and pre-release. Therefore, forecast required for pre-release at 326 multi-purpose reservoirs in Japan shown quantitatively this paper. In our analysis, was simulated base...

Hydraulics has been at the forefront of science for centuries. In this paper, new exciting developments are presented in terms of energy dissipation and multiphase flows. These include the hydraulic design of rectangular dropshafts and stepped chutes for embankment dams, and new air-water studies of spillway flows and dam break waves. The findings demonstrate innovative hydraulic research which...

1 Discussion Verification and Validation of a Computational Fluid Dynamics (CFD) Model for Air Entrainment at Spillway Aerators By M. Cihan AYDIN and Mualla OZTURK, Canadian Journal of Civil Engineering 2009, 36, 826-838. Discussers: Hubert Chanson, Professor, School of Civil Engineering, The University of Queensland, Brisbane QLD 4072, Australia, E-Mail: [email protected] Pierre Lubin, Unive...

The goal of this research was to determine the impact a pooled and flat stepped spillway on energy losses. FLOW3D, which is computational fluid dynamics (CFD) program, with mesh size 0.015 mm used for purpose. First, code tested against an available experimental model data both water flow depth inception point position. outcome precisely shows agreement laboratory work. Second, dissipation resi...

In this paper, novel hybrid MOSFET(HMOS) structure has been proposed to reduce the gate leakage current drastically. This novel hybrid MOSFET (HMOS) uses source/drain-to-gate non-overlap region in combination with high-K layer/interfacial oxide as gate stack. The extended S/D in the non-overlap region is induced by fringing gate electric field through the high-k dielectric spacer. The gate leak...

In advance longwall mining, the safety of mine network, production rate, and consequently, economic conditions of a mine are dependent on the stability conditions of gate roadways. The gate roadway stability is a function of two important factors: 1) characteristics of the excavation damaged zone (EDZ) above the gate roadway and 2) loading effect due to the caving zone (CZ) above the longwall w...