### Numerical Investigation on Hot Metal Flow in Blast Furnace

stalled in the area of the tapholes and cast iron staves were used in the rest of the area. Besides water-cooling steel pipes were arranged in the hearth bottom. The conductivity of the refractories and cooling components are listed in Tab le 2. 3. Governing Equations and Numerical

Read More### Experimental investigations and CFD modeling for flow of

Sep 26 2017 · ABSTRACTConsidering a large number of higher solids concentration iron ore slurry pipelines operating across the world and their associated problems the present study aims to generate an extensive experimental dataset from the pilot plant test facility and to carry out computational fluid dynamics (CFD) simulations for better understanding of the flow behavior in such pipelines.

Read More### Numerical modelling of rapid flow-like landslides across

Erosion phenomena were rarely observed along the flow path so we set a slight erosion rate of E r = 0.0005 and critical velocity as V critical = 4 m s − 1. All the parameters for the El Picacho landslide model are listed below in Table 1.

Read More### A Numerical Study on Erosion Model Selection and Effect of

Oct 17 2019 · Various erosion equations and models were developed for different materials and affecting factors. However the predictions of these erosion models in ESPs need to be evaluated to make a proper selection. Comparisons of wear patterns and erosion rates were conducted using the computational fluid dynamics (CFD) software ANSYS.

Read More### Numerical Prediction of Iron Flow and Bottom Erosion in

Request PDF Numerical Prediction of Iron Flow and Bottom Erosion in the Blast Furnace Hearth The blast furnace (BF) campaign life which is limited by the hearth erosion will be decisive for

Read More### PROCESSES CONTROL AND PREDICTION OF EROSION AND

Additionally numerical simulations of subsurface flow responses will be performed and a model for pipe flow gully erosion developed and published in 2007. In FY 2006 the tracer release data will be modeled to determine the dynamics of subsurface flow and the area contributing subsurface flow from runoff plots as result of water restricting

Read More### Performance prediction of erosion in elbows for slurry

Effect of impingement angle on slurry erosion behaviour and mechanisms of 1017 steel and high-chromium white cast iron. Wear 262 (2007) pp. . Article Numerical investigation of flow erosion of sand-laden oil flow in a U-bend Numerical prediction of erosion distributions and solid particle trajectories in elbows for gas-solid

Read More### Investigation of erosion behavior of 304 stainless steel

Jun 29 2020 · Figure 10a shows the erosion rate in terms of particle mass flow rate for both. It was seen that the simulation results agreed well with the experimental data with a little higher (about 10 ) than the experimental data. The erosion rate increased with particle mass flow rate. Figure 10b shows the erosion rate in terms of particle diameter. It

Read More### One-Dimensional Riemann Solver Involving Variable

Mar 03 2016 · Such events can lead to significant changes in the wave hydrodynamics since the inertia of the flow can be larger and consequently its erosion/deposition capacity can be altered. From a numerical point of view a new complex erosion/deposition source term appears.

Read More### Numerical modeling of onset and rate of sand production in

Sand production is the result of transportation of failed sand grains by the flow of reservoir fluids. Sand production problems have been the focus of major discussion in the industry for a long time (Geilikman et al. 1994 Santarelli et al. 1997 Grafutko and Nikolaevskii 1998 Stavropoulou et al. 1998 Papamichos and Malmanger 2001).Operationally the production of sand is in general

Read More### Numerical Investigation on Hot Metal Flow in Blast Furnace

stalled in the area of the tapholes and cast iron staves were used in the rest of the area. Besides water-cooling steel pipes were arranged in the hearth bottom. The conductivity of the refractories and cooling components are listed in Tab le 2. 3. Governing Equations and Numerical

Read More### Numerical simulation of erosion and erosive prediction on

angles ranging from 15deg. to 30deg. meanwhile erosion for brittle material tend to reach maximum at impact angles ranging from 80deg. to 90deg. and erosion for cast iron tend to reach maximum at impact angles ranging from 50deg. to 70deg. typical curves of relationship between erosion rate and impact angle are shown in Fig. 1.3 10 .

Read More### Materials Free Full-Text Investigation of the Erosion

Based on the erosion results of the boronized coating under the impact of quartz sand particles in this study and the erosion test data of different boronized coatings under the impact of 45 μm iron oxide particles in literature a prediction relationship for the erosive weight-loss of the boronized coating per unit time was established by

Read More### "Numerical and Experimental Investigations of Dam and

Dec 14 2015 · Both numerical and experimental investigations are conducted to study the failure of earthen dams and levees. Boussinesq equations describing one-dimensional unsteady flow including non-hydrostatic pressure distribution are solved numerically along with Exner equation for the sediment mass conservation to include the effects of the streamline curvature on the failure of non-cohesive

Read More### Mathematical model for on-line prediction of bottom and

Nov 01 2003 · The refractory on the bottom and hearth of the blast furnace is slowly eroded by molten iron. The erosion continues until a thermal equilibrium is reached such that the heat flow through the molten pool is equal to the heat removed from external surfaces of the sub-hearth . The carbon saturated iron solidifies at about 1150 °C.

Read More### Slurry Flow and Erosion Prediction in a Centrifugal Pump

After long-term operation the material loss due to slurry erosion often leads to significant changes in the impeller geometry. This change can in turn affect the flow characteristics and the erosion mechanism in a centrifugal pump. To investigate this matter we consider two geometric models based on a prototype stainless steel impeller which failed due to huge erosion problems from the

Read More### Numerical modeling (geology)Wikipedia

In geology numerical modeling is a widely applied technique to tackle complex geological problems by computational simulation of geological scenarios.. Numerical modeling uses mathematical models to describe the physical conditions of geological scenarios using numbers and equations. Nevertheless some of their equations are difficult to solve directly such as partial differential equations.

Read More### Numerical modelling of rapid flow-like landslides across

Erosion phenomena were rarely observed along the flow path so we set a slight erosion rate of E r = 0.0005 and critical velocity as V critical = 4 m s − 1. All the parameters for the El Picacho landslide model are listed below in Table 1.

Read More### Numerical Analysis on Flow Behavior of Molten Iron and

The resulting numerical solution was used to calculate the wall shear stress and separation efficiency of molten iron from slag at slag port by and respectively at steady state. where is the normal vector. where the mass flow rate of melted iron at the slag port was obtained by and the mass flow rate of iron at the taphole was

Read More### Monitoring of Blast Furnace Hearth Erosion Scientific

3 Lei Shao Henrik Saxen Numerical Prediction of Iron Flow and Bottom Erosion in the Blast Furnace Hearth J. Steel research international 83 (2012 ) 77-81. DOI 10.1002/srin. 4 Chen Yi Tan Yongji Gu Xianglin and Chen Helin Monitoring the Wear-line of Blast Furnace with Inverse Problem and Genetic Algorithm J. Journal of

Read More### Slurry Flow and Erosion Prediction in a Centrifugal Pump

After long-term operation the material loss due to slurry erosion often leads to significant changes in the impeller geometry. This change can in turn affect the flow characteristics and the erosion mechanism in a centrifugal pump. To investigate this matter we consider two geometric models based on a prototype stainless steel impeller which failed due to huge erosion problems from the

Read More### Knowledge of Gating system types of Vietnam Cast Iron

In the bottom gate liquid metal fills the lower part of the mold cavity and gradually increases into the mold wall. The bottom gate has the advantage of less chaos and sand erosion than the top gate. The downside of the bottom gate is that the metal flow can be clogged due to

Read More### Numerical Simulation of the Topographical Change in Korea

The objectives of this study are to simulate the topographical changes associated with rainfall and the consequential debris flow using terrestrial LiDAR (Light Detection And Ranging). Three rainfall events between July 9 and July 14 2009 triggered a number of debris flows at Jecheon County in Korea. Rain fell at a rate of 64 mm/h producing 400 #x2009mm of total accumulation during this

Read More### A/Professor Ha BuiEngineering Monash University

A/Professor Ha Bui. Bui is currently an Associate Professor and ARC Future Fellow at the Department of Civil Engineering Monash University. He received both his Master and PhD degrees in Civil Engineering (Computational Geomechanics) from the School of Science and Engineering at

Read More### Predictive Modelling of Wellhead Corrosion due to

The flow of crude oil water and gas from the reservoirs through the wellheads results in its deterioration. This deterioration which is due to the impact of turbulence corrosion and erosion significantly reduces the integrity of the wellheads. Effectively managing the wellheads therefore requires the knowledge of the extent to which these factors contribute to its degradation.

Read More