Turbine is the most critical component in hydropower plants because it affects the cost as well as overall performance of the plant. Hence, for the cost effective design of any hydropower project, it is very important to predict the hydraulic behavior and efficiency of hydro turbines before they are put in actual use. Experimental approach of predicting the performance of hydro turbine is costl...

BACKGROUND We describe the anesthetic management for cesarean section in a pregnant woman with uncorrected double-outlet right ventricle. The anesthetic method, treatment of complications and lessons are discussed. CASE PRESENTATION A 28-year-old woman visited our emergency room for progressive dyspnea and recurrent hemoptysis at 30 weeks' gestation. Her New York Heart Association functional ...

Abstract We study immiscible two-phase flow of a compressible and an incompressible fluid inside capillary tube varying radius under steady-state conditions. The is Newtonian the inviscid ideal gas. surface tension associated with interfaces between two fluids introduces forces that vary along due to variation in radius. interplay effects compressibility results set properties are different fro...

Thoracic outlet syndrome is the result of compression or irritation of neurovascular bundles as they pass from the lower cervical spine into the arm, via the axilla. If the pectoralis minor muscle is involved the patient may present with chest pain, along with pain and paraesthesia into the arm. These symptoms are also commonly seen in patients with chest pain of a cardiac origin. In this case,...

Several theoretical predictions of the mass flow rate of granular media discharged from a silo are based on the spontaneous development of a free-fall arch region, the existence of which is still controversial. In this Letter, we study experimentally and numerically the particle flow through an orifice placed at the bottom of 2D and 3D silos. The implementation of a coarse-grained technique all...

Severe slugging is an unstable multiphase flow pattern occurs in a pipeline riser with low gas and liquid flowrates. It highly undesired practical operation because of the pressure mass oscillations induced. Riser outlet choking has shown effectiveness eliminating or reducing severity slugging. This work presents experimental numerical study on elimination severe riser-induced slug by means cho...