A Numerical Study of Pump Characteristics of a Concrete Related Information

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 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

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.

Materials | Free Full-Text | Numerical Study on Concrete

In, the concrete flow through a bend of pipe is considered, where the DEM is applied in association with CFD in order to investigate the pressure and velocity field and to study the reaction force at pipe wall. As suggested above, CFD is more suitable for the full simulation of pumping under normal conditions, while DEM and coupled methods are more powerful for the analysis of potential hazards during pumping by …

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.

Multiscale Numerical Study of Fracture and Strength

Multiscale numerical study of fracture and strength characteristics of zirconium alumina concrete with use of the particle-based MCA method Aleksandr Grigorieva*, Evgeny Shilkoa,b, Vladimir Skripnyakb, Alexey Smolina,b, Sergey Psakhiea,b aInstitute of Strength Physics and Materials Science of SB RAS, 2/4, pr. Akademicheskii, Tomsk, 634021, Russia

Experimental and CFD Analysis Of Centrifugal Pump Impeller

Jun 13, 2013 · Numerical simulation of centrifugal pumps is not easy due to the usual CFD difficulties: turbulence, separation, boundary layer, etc. Although there are also specific problems: Complex geometry: a great number of cells is needed and, due to skewness, usually unstructured grids give better convergence than structured ones.

Materials | Free Full-Text | Numerical Study on Concrete

To better understand the fresh concrete pumping mechanisms in detail, the discrete element method is employed in this paper for the numerical simulation of local pumping problems. By modeling the coarse aggregates as rigid clumps and appropriately defining the contact models, the concrete flow in representative pipeline units is well revealed.

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

Study on the Permeability Characteristics of Foamed

Jun 06, 2021 · The pressure and water flow distributions in foamed concrete were obtained, and the permeability of the foamed concrete with different densities was calculated. The numerical simulation results showed that the proposed method can be used to predict the permeability of foamed concrete.

Design and Research of Concrete Spraying Machine

According to the characteristics of the general tunnel structure, one type of the concrete spraying machine is designed and researched for convenient operation. Based on the work condition, the structure and dimensions of the mechanical are calculated, including the thickness and section size of each working arm. During the loading situation, the strength and stiffness of the key components

A Numerical Study of Pump Characteristics of a Concrete

Download Citation | A Numerical Study of Pump Characteristics of a Concrete Volute Pump With Various Types of Volutes | The concrete volute pump with a specific speed of 460 has been designed. The

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

Experimental and numerical studies on hydraulic fracturing

Sep 24, 2020 · Experimental and numerical studies on hydraulic fracturing characteristics with different injection flow rates in granite geothermal reservoir. heat pump, agricultural heating, aquaculture, bathing and swimming, and the fracture creation characteristics are unclear and worth to study. In this study, it is the first time to detailly and

Numerical Study on the Characteristics and Effects of Gap

Numerical Study on the Characteristics and Effects of Gap Flow in Two Parallel Rotating Disks. Immense amounts of concrete research have been done on this subject [1 this method is used in the plain porting mechanism in axial piston pump; a constant clearance is obtained by use the oil pressure to balance the preload of the spring.

Numerical Study on the Flow and Heat Transfer

Nov 05, 2019 · The numerical calculation of the SST k-w model is used to evaluate the average Nusselt number of the target plate and the flow coefficient of the channel, and the heat transfer distribution and flow field are analyzed. This study is expected to achieve better coordination between improved heat transfer and reduced flow resistance.

Theoretical, numerical and experimental investigation of

Sep 15, 2008 · In this paper, several centrifugal pumps (N{sub s} < 60 (m, m{sup 3}/s)) were tested as turbines. Using experimental data, some relations were derived to predict the best efficiency point of a pump working as a turbine, based on pump hydraulic characteristics. Validity of the presented method was shown using some referenced experimental data.

Experimental and numerical studies on hydraulic fracturing

Sep 24, 2020 · Experimental and numerical studies on hydraulic fracturing characteristics with different injection flow rates in granite geothermal reservoir. heat pump, agricultural heating, aquaculture, bathing and swimming, and the fracture creation characteristics are unclear and worth to study. In this study, it is the first time to detailly and

Research on rigid–flexible coupling dynamic

Oliver Lenord did research on a four-boom concrete pump test rig. He established three models of boom system and obtained a simplified linear damping to simulate the model. 4 Liu et al. 5 established a dynamic model of boom system and done numerical computation using rigid–flexible multi-body dynamics theory. F.

(PDF) Numerical Study on Concrete Pumping Behavior via

Apr 30, 2019 · Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method Yijian Zhan 1, * ID, Jian Gong 1, *, Yulin Huang 1, *, Chong Shi 2 ID, Zibo Zuo 1 and Yiqun Chen 3