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The flexibility-curvature matrix before damage and after damage are respectively CFu and CFd，whose elements are as following [6]： （2） （3） In formula, and are respectively the j row and i line elements of flexibility matrix, li is the length of the ith unit.
Finite element simulation The geometry dimenssion of curl tube is showed in figure 2.

Simulation calculation is set to transient iterative calculation.
Fig.3 Effect of airflow ascend-type simulation Fig.4 Average temperature of cross section of airflow ascend-type observation surface Fig.5 Effect of airflow descend-type simulation Fig.6 Average temperature of cross section of airflow descend-type observation surface Fig.7 Effect of positive inversion ventilation mode simulation Fig.8 Average temperature of cross section of positive inversion ventilation mode observation surface Fig. 3 and Fig. 5 are simulation results of the airflow ascend-type and airflow descend-type, and Fig. 7 is a simulation effect diagram of the positive inversion ventilation mode, wherein the mode shown in Fig. 7 is in the airflow ascend-type mode.
[7] ZHAI Zhi-ping, YANG Zhong-yi, GAO Bo, et al.Simulation of solid一gas two-phase flow in an impeller blower based on Mixture model[J].
[8] YU Feng-quan.The summary of CFD simulation methods for architecture wind environment[J].
Numerical Simulation of Whole Flow Field for Centrifugal Pump with Structured Grid[J].

Case Study CFD Model.
Number 0 blade is defined as reference blade which vibrates in the first mode and other blades remains at rest in the unsteady flow simulation.

At present, the comprehensive evaluation methods include: grey theory [1], fuzzy theory [2], and extension theory [3], based on neural network theory [4], and established the comprehensive evaluation method and simulation analysis method [5, 6].
Evaluation model for indoor thermal comfort based on neural network [J], Journal of Harbin Institute of Technology,2003,35(12): 1436-1438 [5] Gu Xiao-song Wang Han-qing Fu Jun-ping, Evaluation of Indoor Environment with CFD Method, 2006,29(10):59-61 [6] Liu Hong-min ,Lian Zhi-wei .Ni Jiu-jian,ect.

CFD simulation of shear-induced aggregation and breakage in turbulent Taylor-Couette flow [J].

CFD simulation of shear-induced aggregation and breakage in turbulent Taylor-Couette flow [J].

., CFD investigation of gear pump mixing using deforming/agglomerating mesh.
Part II: Meshing phenomena and simulation results.

Gao Yong[1] , he use the computational fluid dynamics (CFD) method to simulated the internal flow field of blood pump , and obtained the situation of the internal flows.The scholars has not considered the heat conduction, convection and heat flux density on the influence of the blood pump in the blood pump blood simulating of the numerical analysis.
Artificial heart internal flow field numerical simulation [J].

The POD is determined by the Cumulative Distribution Function (CFD) resulting from the error of the predicted impact locations/force magnitude.
To develop and assess the meta-models for impact detection and identification, a data base of 1500 various impact scenarios (changing location, mass, velocity) on a sensorised composite panel has been generated via SMART FE simulation running on HPC units, see [9] for details of the numerical analysis.

From 1990s, non-continuous helical baffles have been studied increasingly in open-literature [9], but most of researchers were restricted to the computer simulation, that is “CFD” [10, 11], lack of the basis of the reliable experimental data.