win7正版激活Metallurgical Application of the Fluid Mechanics
The fluid mechanics is a subject that includes the study of fluid mechanical movement rule and application. We can study the action of many kinds of forces, the state of fluid itlf, as well as the interaction between fluid and solid wall, fluid and fluid, fluid and other kind of movement in the fluid mechanics.
Flow phenomenon widely consist in the metallurgical process, the flow coupling heat transfer, mass transfer and chemical reaction, pha transformation and electromagnetic force, bubble flow, and many other process to form more complex natural phenomena. The flow of the metal directly determines the quality of products and production. Many technical innovation of metallurgical industry are to improve with the development of the flow situation. Master the melt flow rule is an important thing to improve product quality, improve the efficiency of smelting.
Most of the smelting process was conducted in the molten state, and the reaction process is also carried out in a continuous flow of the melt. So studying the influence of the flow, the
smelting process must be considered. And flow phenomena tend to be the driving force of control process. With ordinary fluid mechanics the object of study, such as air and water, the flow of the high temperature is more complex and it has more particularity.
购物英语With the continuous improvement of the industry of steel purity requirements, refining outside the furnace technology, to get high purity steel, we should blow argon into ladle and do the vacuum processing, u the rising bubble to mix liquid steel, accelerate the chemical reaction rate, homogenize temperature, promote the inclusion removal. The key of ladle jet stirring operation is in the best conditions of the gas flow to achieve the shortest mixed gas flow time and the largest extra alloy utilization. For accurately determining the parameters, the cycle of the past with the macro flow for determining smelting effect method is hard to do. So we must have a thorough understanding of molten steel in molten pool distribution of velocity distribution and turbulent flow characteristics.
The steel smelting process is conducted in molten state, the reaction process is also in c
onstant flow of melt. Thus the mathematical model of steelmaking process generally cannot ignore the influence of the flow.Liquid steel flow problem solving can u computational fluid dynamics method. There are mainly two kinds: one kind is to solve the pressure poisson equation, such as the MAC method. Another kind is the pressure correction method, such as SIMPLE ries method. At prent two methods develop parallelly, and promote each other. SIMPLE of staggered grid is transplanted the MAC technology. Dealing with a problem about surface, MAC method has a unique advantage. When computing the complex problem of multipha flow, SIMPLE ries method is desirable. Fluid mechanics is the soul of smelting technology. In the process of modeling, process is limited by the lack of knowledge, and the introduction of a large number of assumptions make up for the defect. The computer simulation on fluid flow and heat transfer can be made very reliable prediction. We should realize that unlike pure the development of computational fluid dynamics, metallurgical process computer simulation of the accurate solution of the goal is not to get a process or detailed data, but increa the understanding of the process.It can be expected that the steel fluid mechanics rear
ch will continue to develop along two parallel routes. On one hand, basic computational fluid dynamics techniques will develop continuously. On the other hand, the description of the more reliable model will be ud by metallurgical workers development of metallurgical process.
怎么剥柚子皮Reference:
再别康桥歌曲[1]Ari Jokilaakso. Computational Fluid Dynamics in Process Metallurgy. Proceeding of the 2nd Colloquium on Process Simulation Helsinki University of Technology, Espoo, Finland, 1995, 233-255.
冷酷反义词
[2]Li Baokuan. Metallurgical Application of the Advanced Fluid Mechanics. Gold Journal, 2001-04
[3]Li Baokuan; He Jicheng.Application and Development of Computational Fluid Dynamics in Steelmaking Process. ADVANCES IN MECHANICS. 1999-01
[4]咬定青山不放松Ruottu S. Mathematieal modeling of the outokumpu fiash smelting proeess. Combus
tion and Flame 1979,34;1-11
苦力芽
[5]Liu Aiping,Tong Changren, Li Anguo. CFD technology application in metallurgy. Shanxi Metallurgy, 2010-01
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