CAJ | 학술논문

分析了热脉冲传感器脉冲信号与沉积物水界面通量之间的传热问题，并通过优化程序，提出了用热脉冲测定计算界面通量J的新方法．此分析方法只需3个实验参数，即x0，λ和（ pc） l 就可利用热脉冲测定数据计算出沉积物水界面通量J．数据分析结果表明：热脉冲顶点温度到达时间与水流速度呈曲线关系；沉积物水界面通量和热源上下游温升比值的自然对数之间存在一种简单的线性关系．这种简单的线性关系，有利于热脉冲型传感器在土壤水界面通量测定中的广泛应用．
분석료열맥충전감기맥충신호여침적물수계면통량지간적전열문제，병통과우화정서，제출료용열맥충측정계산계면통량J적신방법．차분석방법지수3개실험삼수，즉x0，λ화（ pc） l 취가이용열맥충측정수거계산출침적물수계면통량J．수거분석결과표명：열맥충정점온도도체시간여수류속도정곡선관계；침적물수계면통량화열원상하유온승비치적자연대수지간존재일충간단적선성관계．저충간단적선성관계，유리우열맥충형전감기재토양수계면통량측정중적엄범응용．
The heat pulse signal is analyzed in a new way with the goals of clarifying the relationships between the variables in the heat transfer problem and simplifying the procedure for calculating sediment-water interface fluxes J. Only three parameters x0 λand pc l are needed to calculate J by the heat pulse data for this analysis method.The results show that there is a curvilinear relationship between the peak temperature arrival time and sediment-water interface fluxes and there exists a simple linear relationship between sediment-water interface fluxes and the natural log of the ratio of the temperature increase downstream from the line heat source to the temperature increase upstream from the heat source.The simplicity of this relationship makes the heat pulse sensors an attractive option for measuring soil water fluxes.