Module RunoffProperties - Revision history

Davidbrito: /* Property Transport */

2018-07-25T17:27:02Z

‎Property Transport

2018-07-25T17:26:47Z

‎Property Transport

2018-07-25T17:26:18Z

‎Property Transport

2018-07-25T17:25:47Z

‎Property Transport

2018-07-25T17:25:12Z

‎Property Transport

2018-07-25T17:19:43Z

‎Property Transport

2018-07-25T17:14:11Z

‎Property Transport

2018-07-25T17:13:29Z

‎Property Transport

2018-07-25T17:11:50Z

‎Property Transport

2014-02-06T17:25:03Z

‎Boundary Conditions

← Older revision		Revision as of 17:27, 25 July 2018
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−	[[Image:RunoffProperties_Transport3.gif\|~~900px~~\|thumb\|center\|Transport Equation]]	+	[[Image:RunoffProperties_Transport3.gif\|1200px\|thumb\|center\|Transport Equation]]

	where:		where:

← Older revision		Revision as of 17:26, 25 July 2018
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−	[[Image:RunoffProperties_Transport3.gif\|~~600px~~\|thumb\|center\|Transport Equation]]	+	[[Image:RunoffProperties_Transport3.gif\|900px\|thumb\|center\|Transport Equation]]

	where:		where:

← Older revision		Revision as of 17:26, 25 July 2018
Line 18:		Line 18:


−	[[Image:RunoffProperties_Transport3.~~png~~\|600px\|thumb\|center\|Transport Equation]]	+	[[Image:RunoffProperties_Transport3.gif\|600px\|thumb\|center\|Transport Equation]]

	where:		where:

← Older revision		Revision as of 17:25, 25 July 2018
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−	[[Image:~~EquationTransport_RunoffProperties3~~.png\|600px\|thumb\|center\|Transport Equation]]	+	[[Image:RunoffProperties_Transport3.png\|600px\|thumb\|center\|Transport Equation]]

	where:		where:

@@ Line 17: / Line 17: @@
 The property transport equation:
-  <math>\frac{(V\times C_{i})^{t+\Delta t}-(V\times C_{i})^{t}}{\Delta t}=-\left (Q_{i+\frac{1}{2}}\times C_{i+\frac{1}{2}}^{*}-Q_{i-\frac{1}{2}}\times C_{i-\frac{1}{2}}^{*}  \right )+\left (\gamma _{i+\frac{1}{2}}^{*}\times A_{i+\frac{1}{2}}\times \frac{C_{i+1}^{*}-C_{i}^{*}}{\Delta x_{i}} \: \; -\gamma _{i-\frac{1}{2}}^{*}\times A_{i-\frac{1}{2}}\times \frac{C_{i}^{*}-C_{i-1}^{*}}{\Delta x_{i}}  \right )</math>
 where:

@@ Line 17: / Line 17: @@
 The property transport equation:
-  <math>\frac{(V\times C_{i})^{t+\Delta t}-(V\times C_{i})^{t}}{\Delta t}=-\left (Q_{i+\frac{1}{2}}\times C_{i+\frac{1}{2}}^{*}-Q_{i-\frac{1}{2}}\times C_{i-\frac{1}{2}}^{*}  \right )+\left (\gamma _{i+\frac{1}{2}}^{*}\times</math>
+  <math>\frac{(V\times C_{i})^{t+\Delta t}-(V\times C_{i})^{t}}{\Delta t}=-\left (Q_{i+\frac{1}{2}}\times C_{i+\frac{1}{2}}^{*}-Q_{i-\frac{1}{2}}\times C_{i-\frac{1}{2}}^{*}  \right )+</math>
- <math>A_{i+\frac{1}{2}}\times \frac{C_{i+1}^{*}-C_{i}^{*}}{\Delta x_{i}} \: \; -\gamma _{i-\frac{1}{2}}^{*}\times A_{i-\frac{1}{2}}\times \frac{C_{i}^{*}-C_{i-1}^{*}}{\Delta x_{i}}  \right )</math>
+ <math>\left (\gamma _{i+\frac{1}{2}}^{*}\times A_{i+\frac{1}{2}}\times \frac{C_{i+1}^{*}-C_{i}^{*}}{\Delta x_{i}} \: \; -\gamma _{i-\frac{1}{2}}^{*}\times A_{i-\frac{1}{2}}\times \frac{C_{i}^{*}-C_{i-1}^{*}}{\Delta x_{i}}  \right )</math>
 where:

@@ Line 93: / Line 93: @@
 ==Boundary Conditions==
-In Runoff there is the option to define the boundary condition as an imposed level but water can only exit domain and not enter (e.g. obstacles to water)
+In Runoff there is the option to define the boundary condition as an imposed level or time series.
-As so there is no need to define property values in the outside or boundary.
+If water enters domain from outside the properties values in the boundary need to be defined.
 ===Computation===
-The boundary flow from Module Runoff is used to define transport coefficients for advection diffusion.
+Boundary properties values are computed in one of two ways: i) impose a property value at boundary; ii) Null gradient where outside concentration is the same as inside.
-In advection diffusion solving (if user chooses implicit) the fluxes are computed implicitly.
+The boundary flow from ModuleRunoff and the imposed concentration in boundary are used to define compute new concentrations explicitly.
 ===Keywords===
-Since water does not enter domain through boundary there is no need for property definition
+The keyword in property block in RunoffProperties_X.dat that allows to define the boundary condition method is:
 ==Discharges==