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积分近似模型
相关语句
  approximate integral model
     APPROXIMATE INTEGRAL MODEL WITH ARTIFICIAL NEURAL NETWORK FOR HEAT EXCHANGERS
     结合神经网络的换热器积分近似模型
短句来源
     Approximate Integral Model of Heat Exchangers Combining with Artificial Neural Networks
     结合神经网络的换热器积分近似模型
     In order to improve predicting precision and increase computation speed of simulation for heat exchanger, a novel method is presented in this paper, in which an approximate integral model is used to simplify the original distributed parameter model and an artificial neural network is combined to reflect the nonlinear relations in the integral model.
     为解决换热器的分布参数模型存在的精度与计算代价之间难以调和的矛盾,本文提出了一种新的方法,即光用一个积分近似模型作为对原分布参数模型的简化,而仅对积分近似中某些非线性关系用神经网络来表达。
短句来源
     With requirements of designing an adiabatic capillary tube in engineering, an approximate analytic solution to the tube length derived from the approximate integral model is developed.
     为适应毛细管的工程设计要求,在绝热毛细管积分近似模型的基础上,提出壅塞流动下绝热毛细管长度的近似解析解。
短句来源
     In order to take the choked flow into account and avoid the consequent iterative calculation in the approximate integral model, a direct method for judging and evaluating the choked flow is presented on the basis of the relationship between length and pressure.
     对流动壅塞的情况,为解决积分近似模型中长度计算需要迭代的问题,通过长度与压力的变化关系,提出了一种直接判别与计算流动壅塞的方法。
短句来源
  “积分近似模型”译为未确定词的双语例句
     Based on the assumption that the plasma in bore is a fully developed jet flow, the jet integeral approximation model for plasma ignition process is proposed.
     在初始点火过程中 ,假设等离子体为充分发展射流流动 ,因而可采用积分近似模型进行描述。
短句来源
  相似匹配句对
     APPROXIMATE INTEGRAL MODEL WITH ARTIFICIAL NEURAL NETWORK FOR HEAT EXCHANGERS
     结合神经网络的换热器积分近似模型
短句来源
     NEW MODIFIED APPROXIMATE INTEGRAL MODEL OF ADIABATIC CAPILLARY TUBES
     绝热毛细管近似积分模型的改进
短句来源
     Approximate Integral Model of Heat Exchangers Combining with Artificial Neural Networks
     结合神经网络的换热器积分近似模型
     The approximate integral model is a promising substitute of the general distributed parameter model for fast calculation.
     近似积分模型的提出改进了毛细管模型的计算效率。
短句来源
     E model of CRM.
     E模型
短句来源
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  approximate integral model
The Galerkin method was used to simplify the original integropartial-differential model into a two-mode approximate integral model, which further reduced to an ordinary differential model by introducing new variables.
      


Based on the assumption that the plasma in bore is a fully developed jet flow, the jet integeral approximation model for plasma ignition process is proposed. In the following combustion process, plasma flow is treated by introducing plasma mixing length in the form of empirical relations. Appropriate interphase drag and heat transfer formulation are also suggested. An adapted grid method has been incorporated to the above model to improve numerical calculation accuracy. Calculated pressure curves reproduce the...

Based on the assumption that the plasma in bore is a fully developed jet flow, the jet integeral approximation model for plasma ignition process is proposed. In the following combustion process, plasma flow is treated by introducing plasma mixing length in the form of empirical relations. Appropriate interphase drag and heat transfer formulation are also suggested. An adapted grid method has been incorporated to the above model to improve numerical calculation accuracy. Calculated pressure curves reproduce the experimental results well. Compare with the conventional interior ballistic situation, the velocity and pressure of gas, Solid phase at different time and temperature at bore bottom are increased. It shows the enhancement of interior ballistics by plasma injection. Calculated results provide a theoretical basis for the ballistic design of solid propellant electrothermal chemical(ETC) gun.

在初始点火过程中 ,假设等离子体为充分发展射流流动 ,因而可采用积分近似模型进行描述。而在随后的膛内燃烧过程中通过以经验公式给出等离子体混合长度的方法来处理等离子体的运动 ,并给出了合适的相间阻力及传热公式。通过在计算网格设计中引入了自适应方法提高了数值解精度。计算膛压曲线与实验符合良好。相对常规内弹道情形 ,等离子体能量的注入使在不同时刻膛内的气、固两相速度、压力和膛底温度等出现提高 ,这是等离子体注入后对内弹道的增强过程。计算结果为固体工质电热化学炮的弹道设计提供了理论依据。

In order to improve predicting precision and increase computation speed of simulation for heat exchanger, a novel method is presented in this paper, in which an approximate integral model is used to simplify the original distributed parameter model and an artificial neural network is combined to reflect the nonlinear relations in the integral model. This model is improved by actual calculations of fin-tube condensers.

为解决换热器的分布参数模型存在的精度与计算代价之间难以调和的矛盾,本文提出了一种新的方法,即光用一个积分近似模型作为对原分布参数模型的简化,而仅对积分近似中某些非线性关系用神经网络来表达。该方法用于翅片管式冷凝器的实际计算,验证了这一思路的有效性。

With requirements of designing an adiabatic capillary tube in engineering, an approximate analytic solution to the tube length derived from the approximate integral model is developed. In order to take the choked flow into account and avoid the consequent iterative calculation in the approximate integral model, a direct method for judging and evaluating the choked flow is presented on the basis of the relationship between length and pressure. Case study shows that the present approximate analytic solution could...

With requirements of designing an adiabatic capillary tube in engineering, an approximate analytic solution to the tube length derived from the approximate integral model is developed. In order to take the choked flow into account and avoid the consequent iterative calculation in the approximate integral model, a direct method for judging and evaluating the choked flow is presented on the basis of the relationship between length and pressure. Case study shows that the present approximate analytic solution could meet engineering precision. Based on the approximate analytic solution, the choked characteristics of flow in adiabatic capillary tubes are theoretically analyzed.

为适应毛细管的工程设计要求,在绝热毛细管积分近似模型的基础上,提出壅塞流动下绝热毛细管长度的近似解析解。对流动壅塞的情况,为解决积分近似模型中长度计算需要迭代的问题,通过长度与压力的变化关系,提出了一种直接判别与计算流动壅塞的方法。实例计算表明近似解满足工程精度要求。基于近似解,对绝热毛细管壅塞流动特性进行了理论分析。

 
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