MHD Natural Convection in Porous Media-Filled Enclosures Abstract: Powder core has high saturation flux density and excellent motion linearity of DC bias. 饱和的多孔介质中含夹杂时的磁流体动力学自然对流磁粉心具有较高的饱和磁通密度和较好的直流偏磁动态线性。
High saturation magnetic flux density, high frequency little consumption. 高饱和磁通密度,高频损耗小。
Correspondingly, the paper proposes a calculation model with consideration of the effects of magnetic saturation, partial magnetization and residual flux, and the computation program developed by the authors. 相应地建立了计及铁芯基本磁化曲线饱和、局部磁化、带有原始剩磁影响的电流互感器暂态过程数值计算模型,并编制了计算程序。
In consideration of saturation, finding real gap flux density magnitude by the gap flux density magnitude of fundamental wave. 考虑饱和,由气隙基波磁密幅值求气隙实际磁密幅值。
On the basis of the physical principle of CT saturation, this paper present a new saturated criterion depending on the flux of CT, and find out a dependable measure to solve the error operation of Differential Bus Protect Coursed by CT saturation theoretically. 从电流互感器饱和的物理本质出发,提出了基于电流互感器磁链的饱和判据,从理论上找到了解决电流互感器饱和引起母线差动保护误动问题的可靠方法。
The plasma parameter profiles measured include electron temperature and density as well as their decay lengths, floating potential, space potential, saturation ion current and particle flux in a discharge with this system. 它在一次放电中能测量主等离子体边缘的温度、密度、悬浮电位、空间电位、离子饱和电流、极向电场、粒子通量等参数的径向分布以及电子温度和密度的衰减长度。
Based on these the liquid saturation, liquid flux, liquid remaining in GDL, gas diffusion coefficient are calculated for GDL with different porosity structures, some useful conclusions are gotten. 以此为基础,计算了不同孔隙结构的扩散层的相饱和度分布、液态水残留量、液态水排量和有效气体扩散因子,得到了一些有意义的结论。
Thereafter, according to the unsaturated flow theory ( UFT) model, the equations are derived of one dimensional liquid saturation, liquid flux, liquid remaining in GDL, gas diffusion coefficient for gradient GDL. 随后根据多孔介质的UFT(UnsaturatedFlowTheory)模型,导出了一维的梯度扩散层液态水相饱和度分布方程、液态水流量方程、液态水残留量方程、气体扩散因子方程。
Exponential saturation function was applied to the data sets of sap flux density and vapor pressure deficit, and the fitted curves effectively reflected the sap flow characteristics for different months. 采用指数饱和曲线函数对液流通量密度和空气水气压亏缺进行拟合,有效地反映了各月份液流通量密度对空气水气压亏缺的响应特征。
With the rapid development of the high density recording, it is required that the magnetic head materials have very high coercivity and saturation magnetic flux density. 随着磁盘面记录密度的不断提高,要求磁记录介质具有很高的矫顽力,而要在高矫顽力上记录信息,要求记录磁头材料必须具有高饱和磁感应强度。
An induction machine model including saturation is proposed, which uses flux linkage as state variables. 作者提出了一种以磁链作为状态变量的饱和异步电机模型,区别于传统的dq模型,即采用电流作为状态变量的模型。
With these measures, the local saturation of the motor is treated and the number of flux tube units is reduced in order that the model is simplified. 该模型对电机磁场分布不均和磁路局部饱和现象进行有效处理,减少了模型中磁通管单元的数量,使模型简化并兼顾了求解精度。
The induction machine VBR model is expanded to the induction machine including saturation and deep bar effect, and the induction machine model including saturation using flux linkage as state variables and the double cage VBR induction machine model are proposed. 然后将电压源模型扩展到了考虑饱和、深槽效应下的异步电机模型,提出了采用磁链作为状态变量的饱和异步电机模型和双笼异步电机电压源模型。