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Trace: • Sides • Roll Forming (Non-Conformal Mesh) • Units • Fields at Nodes
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doc:user:general:locks [2015/01/07 15:02] – bomandoc:user:general:locks [2019/11/27 17:33] (current) – papeleux
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-====== DB - Fields ====== + 
 +====== Fields at Nodes ======
  
 ===== Definition ===== ===== Definition =====
  
-''Fields'' are codes used to refer to nodal values. These codes must be known to use Metafor, and are divided into two entities, a ''Nature'' and a ''Variant''.+Nodal fields (such as the displacement, the velocity, the temperature, etc.) are defined thanks to a combination of two "codes": a ''Nature'' and a ''Variant''.
  
-  field = Field(Nature, Variant)+  field = Field1D(Nature, Variant)
  
 Here is a list of some ''Nature'' identifiers : Here is a list of some ''Nature'' identifiers :
  
 ^  ''Nature''  ^  meaning  ^ ^  ''Nature''  ^  meaning  ^
-| ''TX'' | X-coordinate (default) |+| ''TX'' | X-coordinate |
 | ''TY'' | Y-coordinate  | | ''TY'' | Y-coordinate  |
 | ''TZ'' | Z-coordinate  | | ''TZ'' | Z-coordinate  |
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 ^  ''Variant''  ^  meaning  ^ ^  ''Variant''  ^  meaning  ^
-| ''RE''  | relative (default) |+| ''RE''  | relative |
 | ''AB''  | absolute | | ''AB''  | absolute |
-| ''GF1'' | force #1 | +| ''GF1'' | force #1 - External Forces (reaction & contact) | 
-| ''GF2'' | force #2 | +| ''GF2'' | force #2 - Internal Forces | 
-| ''GF3'' | force #3 |+| ''GF3'' | force #3 - Inertial Forces |
 | ''GV''  | first order derivative -- velocity| | ''GV''  | first order derivative -- velocity|
 | ''GA''  | second order derivative -- acceleration | | ''GA''  | second order derivative -- acceleration |
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 __Examples:__ __Examples:__
  
-The meaning of a given ''Field'' is deduced from the previous tables by combining the two components:+The meaning of a given ''Field1D'' is deduced from the previous tables by combining the two components:
  
 ^  ''Field''          ^  meaning  ^ ^  ''Field''          ^  meaning  ^
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-===== Fields used in Metafor =====+===== Common Nodal Fields used in Metafor =====
  
-^   Field   ^  Meaning in Metafor    ^ +^   Field1D                                ^  Meaning in Metafor                    ^ 
-| ''(TX,AB)'', ''(TY,AB)'', ''(TZ,AB)'' | initial positions ($x$, $y$ and $z$) | +| ''Field1D(TX,AB)'', ''Field1D(TY,AB)'', ''Field1D(TZ,AB)''    | initial positions ($x$, $y$ and $z$)   | 
-| ''(TX,RE)'', ''(TY,RE)'', ''(TZ,RE)'' | displacements ($x$, $y$ and $z$) | +| ''Field1D(TX,RE)'', ''Field1D(TY,RE)'', ''Field1D(TZ,RE)''    | displacements ($x$, $y$ and $z$)       | 
-| ''(TO,AB)''                           | initial temperature | +| ''Field1D(TO,AB)''                              | initial temperature                    | 
-| ''(TO,RE)''                           | temperature variation | +| ''Field1D(TO,RE)''                              | temperature variation                  | 
-| ''(TX,GV)'', ''(TY,GV)'', ''(TZ,GV)'' | velocities ($v_x$, $v_z$ and $v_z$) | +| ''Field1D(TX,GV)'', ''Field1D(TY,GV)'', ''Field1D(TZ,GV)''    | velocities ($v_x$, $v_z$ and $v_z$)    | 
-| ''(TX,GA)'', ''(TY,GA)'', ''(TZ,GA)'' | accelerations ($a_x$, $a_y$, $a_z$) | +| ''Field1D(TX,GA)'', ''Field1D(TY,GA)'', ''Field1D(TZ,GA)''    | accelerations ($a_x$, $a_y$, $a_z$)    | 
-| ''(TM,RE)''                          | time| +| ''Field1D(TM,RE)''                              | time                                   | 
-| ''(TX,GF1)'', ''(TY,GF1)'', ''(TZ,GF1)'' | mechanical external forces / contact forces | +| ''Field1D(TX,GF1)'', ''Field1D(TY,GF1)'', ''Field1D(TZ,GF1)'' | mechanical external forces / contact forces | 
-| ''(TX,GF2)'', ''(TY,GF2)'', ''(TZ,GF2)'' | mechanical internal forces | +| ''Field1D(TX,GF2)'', ''Field1D(TY,GF2)'', ''Field1D(TZ,GF2)'' | mechanical internal forces             | 
-| ''(TX,GF3)'', ''(TY,GF3)'', ''(TZ,GF3)'' | inertia forces | +| ''Field1D(TX,GF3)'', ''Field1D(TY,GF3)'', ''Field1D(TZ,GF3)'' | inertia forces                         | 
-| ''(TO,GF1)''                      | thermal external forces | +| ''Field1D(TO,GF1)''                             | thermal external forces                | 
-| ''(TO,GF2)''                      | thermal external forces | +| ''Field1D(TO,GF2)''                             | thermal external forces                | 
-| ...                             | ...  |+| ...                                      | ...                                    |
  
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