DocumentCode :
3027377
Title :
Numerical Simulation of Heat-Transfer in Fracture Rock Based on Fluid-Solid Coupling
Author :
Xu Yihong
Author_Institution :
Liaoning Provincial Coll. of Commun., Shenyang, China
fYear :
2013
fDate :
29-30 June 2013
Firstpage :
855
Lastpage :
857
Abstract :
By analyzing the heat-transfer and seepage of fracture rock, the coupling model of heat-transfer is developed. Temperature field distribution of fracture rock is described by using heat-transfer differential equation. At the same time, the heat-transfer equation is discretized by using weighted residual Galerkin finite element. Combined with boundary condition and parameters, the numerical solution is obtained. The results of numerical simulation show that the heat transportation resulted from fracture flow has major impact on the temperature field distribution of fracture rock. Under the action of fracture flow, the difference in temperature of water and rock wall is gradually reduced. Heat-transfer is increasing as the increase of the velocity of seepage, and the time of reached thermal equilibrium is cut down. The rate of temperature isoline is decreased along the fracture flow. The fluid-solid coupling had evident effects on temperature field distribution of fracture rock, and fluid temperature may influence temperature gradients. The contrast of flow velocity and fluid temperature shows that the effect of the former to temperature field distribution is bigger.
Keywords :
heat transfer; rocks; fluid-solid coupling; fracture rock heat-transfer; fracture rock seepage; heat-transfer coupling model; heat-transfer numerical simulation; residual Galerkin finite element; temperature field distribution; temperature isoline rate; Equations; Heat transfer; Mathematical model; Rocks; Temperature distribution; Water heating; fracture mass; numerical simulation; steady temperature field; water - rock heat transfer;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Digital Manufacturing and Automation (ICDMA), 2013 Fourth International Conference on
Conference_Location :
Qingdao
Type :
conf
DOI :
10.1109/ICDMA.2013.202
Filename :
6598124
Link To Document :
بازگشت