linear density gradient 中文意思是什麼
linear density gradient
解釋
線性密度梯度-
If the soil water content is gradually added from very little value, the value of water content gradient resulted from temperature gradient first is lower, then bigger and finally lower. based on the test data, a linear regression equation about temperature and water content is got. after deciding the temperature and moisture distribution of the soil samples, the problem of coupled thermal and moisture is discussed, the temperature distributions show that the heat - conducting coefficient is related to the density and water content
由溫度場的分佈可以得到:在溫度梯度的作用下,導熱系數是變化的,而導熱系數沿長度方向的變化,使得穩態溫度場沿長度方向成非線性分佈;密實度對溫度場分佈的影響是干密度越大導熱系數越大;初始含水量對溫度場分佈的影響是含水量增大,導熱系數也增大,達到最大值后,含水量增加導熱系數反而減少,含水量對溫度場的分佈有顯著的影響。
分享友人