Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Jun-Hu Yang"'
Publikováno v:
Advances in Mechanical Engineering, Vol 7 (2015)
One major focus on the performance researches of pump as turbine is how to enhance the efficiency of energy recovery. While the key point of increasing the efficiency is to improve the performance of the blade profile which is structural basis of the
Externí odkaz:
https://doaj.org/article/acdffe75c5ec488ea8ad9a86123c9a3e
Publikováno v:
Chinese Journal of Mechanical Engineering. 30:1025-1031
To improve the accuracy and reduce the calculation cost for the inverse problem of centrifugal pump impeller, the new inverse method based on proper orthogonal decomposition (POD) is proposed. The pump blade shape is parameterized by quartic Bezier c
Publikováno v:
Applied Mechanics and Materials. :877-880
Two models of hydraulic turbine based on pump in reversal were simulated. Pressure distribution of flow field in Variable conditions was analysed and external characteristic was forecasted for hydraulic turbine. It was shown: the head increased with
Publikováno v:
Applied Mechanics and Materials. :1033-1037
In order to forecast the rotating speed of the hydraulic energy recovery turbine, Single centrifugal pump and single centrifugal pump with guide vane in reverse operation were adopted as turbines. 3D models were founded by pro/E software for turbines
Publikováno v:
Applied Mechanics and Materials. :579-587
Pumps as turbines (PAT) is an attractive alternative for recovering the pressure-energy. Establishing an external characteristic correlation between pumps and turbines is essential in selecting the proper machine. In this study, a theoretical method
Publikováno v:
Advanced Materials Research. 716:717-720
Two centrifugal pumps in reversal were selected as hydraulic turbines, one of which was equipped with a guide vane. Flow performance was simulated by Fluent. Radial forces of hydraulic turbine in different conditions were predicted. It was shown: whe
Autor:
Da-ming, Li, Tong-qing, Zhang, Sheng-kai, Tang, Cui-lan, Duan, Jun-hu, Yang, Huan, Mu, Xiao-wei, Liu
Publikováno v:
Huan jing ke xue= Huanjing kexue. 37(2)
In the present study, the eutrophic level of 30 water samples collected from Lake hongze in August 2014 were analyzed, and the abundance of toxic and non-toxic Microcystis sp., together with their spatial distribution, was investigated by quantitativ
Publikováno v:
Advanced Materials Research. :441-445
The traditional numerical methods about calculation of bird strike problems are Lagrangian numerical method and Euler method. However, the existence of the finite element mesh distortion and the problem of insufficient accuracy appeared respectively.
Publikováno v:
Advanced Materials Research. :1246-1249
Ejection seat is the most important life-saving tool in warcraft. We analyze of the reason why the ejection mechanism works in advance in ejection process, when the aircraft canopy is not throw away. And carry on the deformation analysis of the lock
Publikováno v:
Advanced Materials Research. :2883-2887
Analysis of the causes about the ejection seat in the ejection process, when the aircraft canopy is not throw away , ejection mechanism ignites advance. using the finite element method(FEM) to carry on the deformation analysis of the lock arm in the