*HEADING
 : FLUID LINK TEST FOR SS ANALYSIS WITH F2D2
 (2-1x1x1 BLOCKS, PNEUMATIC FLUID)
 TEST 9-DIGIT LABELS
*PREPRINT,ECHO=YES,HIST=YES,MODEL=YES
*NODE, NSET=FLUID_CAVITY-1_NODES
*ELEMENT, TYPE=F2D2, ELSET=FLUID_CAVITY-1
*ELEMENT, TYPE=FLINK, ELSET=FLUID_LINK-1
*NSET,NSET=FLUID_LINK-1
*NSET,NSET=FLUID_CAVITY-1
**
**              PNEUMATIC FLUID PROPERTY
**
*PHYSICAL CONSTANTS, ABSOLUTE ZERO=-460.
*FLUID PROPERTY,AMBIENT=10.,TYPE=PNEUMATIC,ELSET=FLUID_CAVITY-1,REFNODE=900000001
*FLUID DENSITY, PRESSURE=0., TEMPERATURE=200.
 10.,
**
**              FLUID LINK PROPERTY
**
*FLUID LINK, ELSET=FLUID_LINK-1
**
**              SPRING
**
*ELEMENT, TYPE=SPRING1, ELSET=SPRINGY1
*SPRING, ELSET=SPRINGY1
 2,
 1.,
*BOUNDARY
900000002,  1, 2, 0.0
900000004,  1, 1, 0.0
*INITIAL CONDITIONS, TYPE=TEMPERATURE
900000001, 200.
900000011, 200.
*EQUATION
**
**              STEP 1: SET MASS FLOW RATE
**                      INTO CAVITY TO 10
**
*STEP, NLGEOM
*STATIC,DIRECT
 .125, 1.
*FLUID FLUX
*OUTPUT,FIELD
*ELEMENT OUTPUT,ELSET=FLUID_LINK-1
 MFL,MFLT
*NODE OUTPUT
 U,PCAV,CVOL
*OUTPUT,HISTORY
*NODE OUTPUT,NSET=FLUID_LINK-1
 PCAV,CVOL
*NODE OUTPUT,NSET=FLUID_CAVITY-1
 U,
*ELEMENT OUTPUT,ELSET=FLUID_LINK-1
 MFL,MFLT
*NODE PRINT,NSET=FLUID_LINK-1,FREQ=9999
 PCAV,CVOL
*EL PRINT,FREQ=0
*END STEP
**
**              STEP 2: HOLD PRESSURE AT
**                      NODE 11 FIXED
**
*STEP, NLGEOM
*STATIC,DIRECT
 .125, 1.
*FLUID FLUX, OP=NEW
*BOUNDARY, fixed
900000011, 8
*END STEP
**
**              STEP 3: RAMP PRESSURE AT
**                      NODE 11 UP TO 5
**
*STEP, NLGEOM
*STATIC,DIRECT
 .125,1.
*BOUNDARY
900000011, 8, 8, 5.
*END STEP
**
**              STEP 4: HOLD SYSTEM FIXED
**
*STEP, NLGEOM
*STATIC
 .2, 1.
*BOUNDARY, OP=NEW
900000002,  1, 2, 0.0
900000004,  1, 1, 0.0
*END STEP