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doc:user:elements:boundaries:convection

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doc:user:elements:boundaries:convection [2013/07/10 11:38] jorisdoc:user:elements:boundaries:convection [2016/03/30 15:23] (current) – external edit 127.0.0.1
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 +====== Convection ======
  
 +===== Materials=====     
 +
 +Since pressure/shear interactions are boundary conditions interactions (''LoadingInteraction''), no materials must be associated to the element.
 +
 +===== Element =====
 +
 +Therefore, the first step consist in defining an ''[[doc:user:elements:general:def_element_properties|ElementProperties]]'', as
 +
 +  prp = ElementProperties(typeEl)
 +  prp.put(param1, value1)
 +  prp.depend(param1, fct1, Lock1)) #optional
 +  ...
 +
 +where
 +|''typeEl'' | desired element (for example ''Tm[2]Convection[2|3]DElement'')|
 +|''param1''| name of the property associated to the element (for example ''CONV_COEF''|
 +|''value1''| value of the corresponding property |
 +|''fct1''| function which characterizes the dependency of the property (optional: no fct if no dependency) |
 +|''Lock1''| [[doc:user:general:locks|Lock]] which defines the dependency variable of the property (compulsory if there is a dependency) |
 +
 +
 +==== Tm[2]Convection[2|3]DElement ====
 +
 +Convection element in 2/3D, first or second order (thermal field of second order)
 +
 +<note>TO DO : Ajouter équations de convection </note>
 +
 +=== Parameters ===
 +^   Name                                          ^     Description        Dependency ^
 +| ''STIFFMETHOD'' | Method used to compute the stiffness matrix\\= ''STIFF_ANALYTIC'' : analytic matrix (default)\\ = ''STIFF_NUMERIC''  : numerical matrix |  -  |
 +| ''CONV_COEF''  | Thermal convection  |  time |
 +| ''TEMP_FLUIDE''  | Temperature of the fluid |  time |
 +| ''NPG''    | Number of integration points (default : tm : 2 / tm2 : 3)    -  |
 +
 +===== Interaction =====
 +
 +The interaction is defined as:
 +
 +  load = LoadingInteraction(no)
 +  load.push(gObject1)
 +  load.push(gObject2)
 +  ...
 +  load.addProperty(prp)
 +  interactionset.add(load)
 +
 +where
 +
 +| ''no''       | number of the ''Interaction'' 
 +| ''gObject1'', ''gObject2''  | mesh geometric entity where the boundary conditions are applied 
 +| ''prp''      | [[doc:user:elements:general:def_element_properties|Properties]] of [[#Element|boundary condition elements]] to generate |

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