Multi-systems lumped heat capacity analysis of micro-chamber PCR chip 微腔型PCR芯片的多体系集总热容法分析
Numerical simulation and lumped heat capacity analysis were carried out to study the thermal performances of the micro chamber PCR chip and micro continuous-flow PCR chip. Effects of the chip geometries, materials and boundary conditions on the thermal cyclings of the PCR chips were investigated. 采用数值模拟和集总热容法研究了现有的微腔型PCR芯片和微流控型PCR芯片的热循环过程,分析了芯片几何形状、材料、换热条件等因素对芯片热循环性能的影响;
The methods of local mesh refined, dynamic time step and lumped heat capacity matrix were introduced to resolve the numerical oscillation problem. 为了解决数值振荡问题,采用了局部网格细化、动态时间步长和集中热容矩阵等方法。
A multi-system lumped heat capacity analysis has been adopted to simulate the thermal cycling of the micro chamber PCR chip. 本文采用多体系集总热容法分析了微腔型PCR芯片的热循环过程,研究了芯片的温度变化规律,并提出了芯片功耗的预测方法。
In this paper, the dynamic response equation of thermal parameters of a reactor core and the primary loop at a loss-of-feedwater for the steam generator is derived with the model of lumped heat capacity, and its approximate solutions are obtained. 文中把集总热容量法用于堆芯和一、二回路,导出了蒸汽发生器给水流量丧失时堆芯和一回路热工参数的动态响应方程及其解析解。
In this paper, some numerical results are analyzed and compared. It is suggested that the lumped mass heat capacity matrix should be used in the finite element analysis of the transient temperature field. 本文通过数值结果的比较和一定的理论分析,提出了在瞬态温度场有限元分析中应采用集中质量的热容矩阵。
Discussion on Use of Consistent or Lumped Mass Heat Capacity Matrix in Finite Element Analysis of Transient Temperature Field 关于瞬态温度场有限元分析中采用协调或集中质量热容矩阵的探讨