水发汗温度场控制  

TRANSPIRATION CONTROL WITH WATER FOR TEMPERATURE FIELD

作　　者：杨学实 

出　　处：《自动化学报》1991年第4期385-394,共10页Acta Automatica Sinica

基　　金：国家自然科学基金

摘　　要：在文献[1,2]研究氦气发汗的基础上,本文探讨了水发汗剂.水在沸点会汽化,热层内存在热漏,对此采用“假想节点”思想,导出了差分公式,建立了三对角方程组,并进行了数字仿真.当给定控制参数m_L的函数形式为级数时,闭合回路控制数字仿真结果表明,该级数能够有效地控制热层温度.On the basis of references [1,2], in which helium was used as the coolant, this paper investigates the problem of transpiration control using water as the coolant. At its boiling point, water will be vaporized and absorb heat, so there exists heat sink in protection layer. By means of the method of imaginary node, the difference equitions with inner discontinuity are derived and the tridiagonal system of equations are obtained. When the control parameter m_L is given as the series type of temperature, the result of the closed-loop control simulations show that it can control the temperature of the heat protection layer very effectively.

关 键 词：水发汗 温度场控制 发汗剂 

分 类 号：TK32[动力工程及工程热物理—热能工程]