tory burch flats Cooling blade design _2377

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Cooling blade design

In the wheel and the wheel should be considered in form design cover while taking into leaf mouth shape changes,[link widoczny dla zalogowanych], for each design should be carried out a cross-section changes along the flow calculation. Computer program can be accomplished by a large number of calculations. Section along the process of over-current change on the velocity of the impeller is relatively large. If the over-current cross-section changes along the process is too large, then the impeller will produce what we do not expect the flow separation, thereby increasing the impeller flow loss, severe flow separation may cause the surge. 4 Application us for a large fertilizer plant transformation of the centrifugal compressor design process, due to neglect in the design process impeller impeller flow cross-section changes along the flow field and efficiency,[link widoczny dla zalogowanych], impeller central area is too large, the design process focus only on the meridian plane projection cross-section changes, ignoring the angular cross section along the way, so the calculation process in the flow field was found within the air flow separation, the impeller efficiency subject to a certain extent. By using the algorithm mentioned above, adjust the impeller design, which obtained good results, flow separation disappears, the impeller efficiency is increased. Pump design with over-current cross-section comparison of algorithms,[link widoczny dla zalogowanych], the text of the considerations in this algorithm is more comprehensive angle on cross section was full attention, and the corresponding analytic method, calculations are more accurate and complete. The paper gives accurate over-current cross-section method, and pointed out the impact of changes in over-current cross-section geometric parameters related to the hope for the design of centrifugal compressor impeller provide useful help. References: [1] Zhang Yongshu. Mathematical Methods of computer-aided geometric design [M]. Xi'an: Northwest Industry University Press, 1982. [2] Li Si. Centrifugal compression machinery [M]. Beijing: Mechanical Industry Press, 1986. (Hui edit) cooling blade design according to (TtuloaHeprernr ~ a) 2002 年 9 月号 reported,[link widoczny dla zalogowanych], by means of thermodynamic description of the process leaves the advanced model, I Shí AM (Russian Central Baranov Ⅱ. I, I. Aero Engine Manufacturing Institute) to develop high-performance gas turbine cooling blade design method. To address issues related to the cooling blades, using the following mathematical model: pathway for cooling air leaves the system along the fluid flow and its network of branches and distribution of one-dimensional model (hydraulic model, GIDR-M procedure); leaves Calculation of the temperature of the cross-section model (geometric model and transfer model, Prep-Key and KW3D procedures); cooling channel heat transfer model; barrier film model. Mathematical model using numerical method for solving equations. Developed a gas turbine cooling blade design needs a full set of practical procedures, which include the flat (- D), the axis of symmetry, quasi three-dimensional and three-dimensional model. In principle, each set of procedures by the following model components: the geometric model structure for its auto division into finite element; hydraulic model of the Making; geometric model and the corresponding relationship between the hydraulic model of the adjustment; hydraulic network calculation ; blade surface boundary conditions on the calculation of heat exchange; stable or unstable heat equation (two-dimensional or three-dimensional); thermal state of the raw data and calculated results of the visualization (plane and three-dimensional images),[link widoczny dla zalogowanych], and cooling air flow along the hydraulic network distribution of visualization. IIMAM applications designed to develop the vision of the cooling blades, and blade used to create series of cooling thermal fluid state model library. (Think Juan feed)
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