hydraulic shockpipelineadiabatic processDifferential equations describing the propagation of a shock wave in a pipeline are obtained with consideration of the adiabaticity of the process and corresponding formulas have been derived to estimate the velocity of sound and the greatest increment of pressure ...
This paper is based on the hydraulic characteristics of the multi-pump group, high head, and small flow of a long-distance water supply system in a deep well pump group. Fisrtly a calculation analysis model is established, and then a non... G Li,X Wu,L Li,... - 《Iop Conference》...
and a systematic analysis of the influence of pipe effect on the vibration characteristics of the electro-hydraulic exciter is investigated by simulation and experiments. The vibration characteristics curves for different pipe parameters are obtained, and the relative errors between...
Energy is used in dwellings to provide four services: space heating, hot water, lighting and to power appliances. This paper describes how the usage of ene... A Wright - 《Energy Policy》 被引量: 103发表: 2008年 Immediate and longer-term impacts of hydraulic clam dredging on an offshore...
In the long-term transportation, supply water distribution pipe network often forms pipe scale or corrosion, which forms a stable reaction balance with the transmission water of stable hydraulic quality, and the pipe scale or corrosion surface maintains a relatively stable morphology and physical and ...
pipes and the hydraulic system of the tractor or excavator.Focus on the left side of the frame on the pipes,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米
Height identification of water-permeable fractured zone (WPFZ) is one of the decisive influence factors for mining safety, especially in some specific conditions, such as mining under aquifer. In order to demonstrate the formation process of the WPFZ, the scaling model experiment is carried out....
During heavy precipitation, chemical and biological pollutants from urban and agricultural areas enter the waters from storm overflows as a result of infiltration and inflow, as well as via uncontrolled outflows from water treatment plants. Infiltration and inflow of rainwater into sewers is an especi...
Design of hydraulic system based on the multitandem valve in iron roughneck Iron roughneck is a kind of rotating screw device for drill pipes, which is multi-functional, safe and efficient. In the production process, through the au... Y Zhang,X Zhu,L Gao,... - International Conference on...
Tree mortality due to drought is often explained by the xylem conduits' failure to meet sap flux demands. Here I argue that in trees exposed to severe drought the demand in hydraulic flux capacity approaches zero (closed stomata, shed foliage) and the decisive factor for survival is live tissu...