The Heat Exchange tab is where the user sets the Surface Heat Exchange model and Bed Heat Exchange parameters as shown in Figure 1. Settings that are relevant to surface heat exchange are provided in the Surface Heat Exchange frame with sub-divisional parameter settings that are additional depending on which model is selected. There are five models for the simulation of Surface Heat Exchange process as below.
- No Atmospheric Linkage
- Full Heat Balance
- COARE3.6
- Equilibrium Temp (CE-QUAL-W2 Method)
- External Equilibrium Temperature
If the Full Heat Balance or COARE3.6 model is used, the user needs to specify the Heat Transfer Coefficients (Figure 1) and COARE parameters (Figure 2), respectively, while other models require no further specifications.
The ASER.INP file must be used for all of the thermal sub-models to compute the surface and bed heat exchange processes. Also, depending on whether the current model is EFDC_GVC or EFDC+, the EFDC+ Explorer form will have different options shown in the tab.
Figure 1. Surface Heat Exchange - Full Heat Balance.
Figure 2. Surface Heat Exchange - COARE3.6.