A Numerical Study of Pump Characteristics of a Concrete Related Information

Numerical study on characteristics of unsteady flow in a

DOI: 10.1108/ECLiming14-0109 Corpus ID: 123260746. Numerical study on characteristics of unsteady flow in a centrifugal pump volute at partial load condition @article{Tan2015NumericalSO, title={Numerical study on characteristics of unsteady flow in a centrifugal pump volute at partial load condition}, author={L. Tan and B. Zhu and Yuchuan Wang and S. Cao and S. Gui}, journal={Engineering

A numerical study to evaluate dynamic responses of voided

pumping or excessive but localised track settlement, so-called 'voided sleepers'. This paper presents a numerical study to evaluate dynamic responses of the voided concrete sleepers to impact loading. A simplified finite element model of concrete sleepers was developed and validated against experimental data. The model has then been used to

Load Characteristics of Steel and Concrete Tubular Members

Dec 22, 2010 · The aim of this study was to evaluate the load characteristics of steel and concrete tubular members under jet fire, with the motivation to investigate the jet fire load characteristics in FPSO topsides. This paper is part of Phase II of the joint industry project on explosion and fire engineering of FPSOs (EFEF JIP) [1].

Advances in Mechanical Engineering Research on rigid

Sep 28, 2014 · Concrete pump truck plays an important role in infrastructure construction and national economic development. In recent years, its boom system becomes longer, and its dynamic and control become more complicated. In order to study the dynamic characteristics of boom system, three dynamic models such as multi-rigid-body model, rigid–flexible cou-

Simulation Study of the Hydraulic System of Concrete

The working principle of concrete pumping hydraulic system was analyzed. And base on the AMESim software, the complete simulation model of concrete pumping hydraulic system was built. A simulation was made to get the dynamic characteristics curve of hydraulic cylinder velocity and displacement at some specific conditions. The simulation results indicate that the model is reasonable.

Numerical Analysis Research Topics Ideas [MS PhD

Numerical study of the effects of CO2 gas in geothermal water on the fluid-flow characteristics in production wells; Numerical evaluation of built-in temperature distribution effects on stress development in concrete pavements; Numerical simulations of perforated plate liners: Analysis of the visco-thermal dissipation mechanisms

Numerical Analysis of the Degradation Characteristics of

May 02, 2018 · The static load carrying capacity of a noncorroded reinforced concrete (RC) simply supported beam is numerically simulated by ABAQUS software, and the reliability of the finite element model is verified by comparing with the test results. Based on the above model, the macroscopic mechanical properties of the beam under different degrees of corrosion are calculated.

Impact Compression Test on Concrete after High …

of concrete materials after high-temperature treatment under all feasible loading rates (10-110 m/s) were investigated in this work through testing and numerical simulation. This study aims to provide theoretical references for the design of the ultimate impact compression strength of concrete projects under high temperatures and impact loads.

low investment Concrete machine for sale in Phnom Penh

hot sale dry mortar mixer supplier in phnom penh. type penh dry mortar mixing equipment production line low investment adhesive mortar binder. small home business investment dry mortar exported dry mortar mixing production equipment to. dry mortar 2012/04/20 phnom penh post concrete mixer for sale.

Numerical Study on Heat Transfer and Flow Characteristics

Feb 27, 2018 · This study investigated the heat transfer and flow characteristics of one kind of swirl generator in a circular heat exchanger tube through a numerical simulation. The swirl flow induced by this type of swirl generator can obtain a high heat transfer rate with minimal pressure drop penalty. The simulations were carried out to understand the physical behavior of this kind of mesoscale heat

Influence of Pumping on Characteristics of Air-Void System

Characteristics of Air-Void System of High-Performance Concrete R. PLEAU, M. PIGEON, A. LAMONTAGNE, AND M. LESSARD The results of an experimental study in which a high-performance air­ entrained concrete·mixture (water-cement ratio= 0.29; 28-day average compressive strength of 75 MPa) was pumped at the job site horizon­

The Truck Mounted Concrete Boom Pump: A Dynamic …

Abstract— Concrete pump booms are subjected to vibrations that increase mechanical stress and shorten their lifespan. This paper aims to study the problem by considering the two subsystems, the boom and the concrete pump, that have the greatest effect on the phenomenon. The authors supply numerical and experimental tools that can analyze the

Numerical Study on Rotating Characteristics of Unsteady

For pump-turbine, when it operating in pump mode, one of the most topical rotating characteristics is rotating stall, which would appears when hump instability occurs both under the condition close to full load and partial load [13, 14]. Many literatures have investigated on this aspect by numerical …

Numerical Analysis on Heat Transfer Characteristics of

Dec 04, 2013 · This study develops a numerical simulation of liquid-vapor two phase flows accompanied with the phase change. In the developed simulation, the VOF (Volume of Fluid) method is adopted for tracking the liquid-vapor interface and the temperature recovery method for estimating mass transfer due to the phase change.

A Numerical Study of Pump Characteristics of a Concrete

May 25, 2012 · The concrete volute pump with a specific speed of 460 has been designed. The performance characteristics and radial thrust has been investigated for three types of volute casings by using CFD. The first one is a conventional volute casing, the second one is the volute with diffuser and the third one is a double volute, respectively.

Numerical Simulation and Experimental Verification of the

Apr 10, 2018 · Numerical simulation and experimental study of thrust air bearings with multiple orifice. International Journal of Mechanical Sciences, 2013, 72: 28–38. Article Google Scholar [25] J Huang, J H Zhang, W D Shi, et al. 3D FEM analyses on flow field characteristics of the valveless piezoelectric pump.

standing type Dry Mortar Mixing Equipment supplier in

standing type mortar mixer supplier in Phnom Penh. Standing Type Dry Mortar Mixer Production Line In Phnom Penh 2016 china top supplier of asphalt mixng plant concrete plant hot mix asphalt dry mortar mixi ready asphalt plant production line mixing plants in china cheap roof equipment in phnom penh.

tarek Meakhail - Academia.edu

An improved model is proposed in this paper for the pump performance. The model can handle one inlet angle and two exit angles for the impeller blades and it can be used for the design of twisted blades that would increase the pump head and efficiency. A new feature of the pump characteristics based on the proposed model is discussed.

Numerical study of the dynamic characteristics of a hybrid

Due to the continuous development of the transportation sector and the industrial areas, the roads network has become complex nowadays. The administrators of these networks are thus responsible for maintaining it in proper conditions, using the limited budget available, insufficient for the many structures and problems identified across the network. Therefore, effective systems have been

Numerical study on flow characteristics of rotor pumps

Dec 09, 2014 · This work is purposed to study the flow characteristics of rotor pumps including cavitation. First, a simplified two-dimensional numerical model is developed and computing strategies of the numerical analysis for cavitation are set up, including the selection of …