A method for simulating the spatio-temporal distribution of temperature field in subsurface flow zone

Abstract

The invention discloses a method for simulating the temporal and spatial distribution of the temperature field in an underflow zone, which includes: using software to select model equations and functions, the model equations include the seepage field model equation in the underflow zone, the temperature field model equation in the underflow zone, and the functions include soil hydraulics Function; first import the geometric model of the channel section into the software, then divide the channel section into regions, then define the model equation, and set the boundary conditions of the channel section model; perform grid division on the channel section and insert domain point probes , the temporal and spatial distribution of the temperature field in the subsurface flow zone is obtained through calculation; the accuracy of the simulation results of the temporal and spatial distribution of the subsurface flow zone temperature field is evaluated by using the root mean square error, the coefficient of determination and the relative error.

Description

technical field [0001] The invention belongs to the technical field of temperature simulation methods in subsurface flow zones, and relates to a method for simulating the temporal and spatial distribution of temperature fields in subsurface flow zones. Background technique [0002] The subsurface flow zone is the saturated sediment layer connecting the surface water body and groundwater at the bottom of the river and its surroundings. In this area, the exchange between surface water and groundwater will occur. The exchange between surface water and groundwater is accompanied by heat transfer. The analysis of spatio-temporal distribution is the basis for studying the living environment of subsurface animals and plants, the metabolism of microorganisms, and the respiration of soil and other water environmental problems. [0003] Due to the influence of solar radiation and atmospheric temperature, the temperature time-series curves at different points in the hyporheic zone have...

AI Technical Summary

Problems solved by technology

At present, measures such as rain gardens and artificial wetlands in the construction of sponge cities that China is vigorously promoting also involve some issues that are closely related to the living environment of the biological environment in the subsurface zone, but there is no method for simulating the temporal and spatial distribution of the temperature field in the subsurface zone.

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