NSEL, Type, Item, Comp, VMIN, VMAX, VINC, KABS
Selects a subset of nodes.
DATABASE: Selecting
MP ME ST PR PRN <> <> FL EM <> <> PP <>
Type
Label identifying the type of select:
S — Select a new set (default).
R — Reselect a set from the current set.
A — Additionally select a set and extend the current set.
U — Unselect a set from the current set.
ALL — Restore the full set.
NONE — Unselect the full set.
INVE — Invert the current set (selected becomes unselected and vice versa).
STAT — Display the current select status.
The following fields are used only with Type = S, R, A, or U:
Item
Label identifying data. Valid item labels are shown in the table below. Some items also require a component label. If Item = PICK (or simply “P”), graphical picking is enabled and all remaining command fields are ignored (valid only in the GUI). Defaults to NODE.
Comp
Component of the item (if required). Valid component labels are shown in the table below.
VMIN
Minimum value of item range. Ranges are node numbers, set numbers, coordinate values, load values, or result values as appropriate for the item. A component name (as specified on the CM command) may also be substituted for VMIN (VMAX and VINC are ignored).
VMAX
Maximum value of item range. VMAX defaults to VMIN for input values. For result values, VMAX defaults to infinity if VMIN is positive, or to zero if VMIN is negative.
VINC
Value increment within range. Used only with integer ranges (such as for node and set numbers). Defaults to 1. VINC cannot be negative.
KABS
Absolute value key:
0 — Check sign of value during selection.
1 — Use absolute value during selection (sign ignored).
Command Default
All nodes are selected.
Notes
Selects a subset of nodes. For example, to select a new set of nodes based on node numbers 1 through 7, use NSEL,S,NODE,,1,7. The subset is used when the ALL label is entered (or implied) on other commands, such as NLIST,ALL. Only data identified by node number are selected. Data are flagged as selected and unselected; no data are actually deleted from the database.
When selecting nodes by results, the full graphics value is used, regardless of whether PowerGraphics is on.
Solution result data consists of two types, 1) nodal degree of freedom--results initially calculated at the nodes (such as displacement, temperature, pressure, etc.), and 2) element--results initially calculated elsewhere (such as at an element integration point or thickness location) and then recalculated at the nodes (such as stresses, strains, etc.). Various element results also depend upon the recalculation method and the selected results location [AVPRIN, RSYS, FORCE, LAYER and SHELL].
You must have all the nodes (corner and midside nodes) on the external face of the element selected to use Item = EXT.
This command is valid in any processor.
For Selects based on non-integer numbers (coordinates, results, etc.), items that are within the range VMIN-Toler and VMAX+Toler are selected. The default tolerance Toler is based on the relative values of VMIN and VMAX as follows:
If VMIN = VMAX, Toler = 0.005 x VMIN.
If VMIN = VMAX = 0.0, Toler = 1.0E-6.
If VMAX ≠ VMIN, Toler = 1.0E-8 x (VMAX-VMIN).
Use the SELTOL command to override this default and specify Toler explicitly.
NSEL - Valid Item and Component Labels
Valid Item and Component Labels NSEL, Type,Item,Comp,VMIN,VMAX,VINC,KABS
Valid item and component labels for input values are:
Item Comp Description
NODE Node number.
EXT Nodes on exterior of selected elements (ignore remaining fields).
LOC X, Y, Z X, Y, or Z location in the active coordinate system.
ANG XY, YZ, ZX THXY, THYZ, or THZX rotation angle.
M Master node number.
CP Coupled set number.
CE Constraint equation set number.
D U Any of X, Y, or Z structural displacements. Amplitude only, if complex.
" UX, UY, UZ X, Y, or Z structural displacement. Amplitude only, if complex.
" ROT Any of X, Y, or Z structural rotations. Amplitude only, if complex.
" ROTX, ROTY, ROTZ X, Y, or Z structural rotation. Amplitude only, if complex.
" TEMP, TBOT, TE2, TE3, . . ., TTOP Temperature.
" PRES Pressure.
" VOLT Electric potential.
" MAG Magnetic scalar potential.
" V Any of X, Y, or Z fluid velocities.
" VX, VY, VZ X, Y, or Z fluid velocity.
" A Any of X, Y, or Z magnetic vector potentials. Amplitude only, if complex.
" AX, AY, AZ X, Y, or Z magnetic vector potential. Amplitude only, if complex.
" CURR Current.
" EMF Electromotive force drop.
" ENKE, ENDS Turbulent kinetic energy or energy dissipation (FLOTRAN).
F F Any of X, Y, or Z structural forces. Amplitude only, if complex.
" FX, FY, FZ X, Y, or Z structural force. Amplitude only, if complex.
" M Any of X, Y, or Z structural moments. Amplitude only, if complex
" MX, MY, MZ X, Y, or Z structural moment. Amplitude only, if complex.
" HEAT, HBOT, HE2, HE3, . . ., HTOP Heat flow.
" FLOW Fluid flow.
" AMPS Current flow.
" FLUX Magnetic flux.
" CSG Any of X, Y, or Z magnetic current segment components. Amplitude only, if complex.
" CSGX, CSGY, X, Y, or Z magnetic current segment component. Amplitude only, if complex.
CSGZY, if complex.
" CHRG Electric charge.
" CHRGD Electric charge density.
BF TEMP Nodal temperature.
" FLUE Nodal fluence.
" HGEN Nodal heat generation rate.
" JS Any of X, Y, or Z current densities. Amplitude only, if complex.
" JSX, JSY, JSZ X, Y, or Z current density. Amplitude only, if complex.
" MVDI Magnetic virtual displacements flag.
NSEL - Valid Item and Component Labels for Nodal DOF Result Values
Item Comp Description
U X, Y, Z, SUM X, Y, or Z structural displacement or vector sum.
ROT X, Y, Z, SUM X, Y, or Z structural rotation or vector sum.
TEMP Temperature.
PRES Pressure.
VOLT Electric potential.
MAG Magnetic scalar potential.
V X, Y, Z, SUM X, Y, or Z fluid velocity or vector sum.
A X, Y, Z, SUM X, Y, or Z magnetic vector potential or vector sum.
CURR Current.
EMF Electromotive force drop.
ENKE Turbulent kinetic energy (FLOTRAN).
ENDS Turbulent energy dissipation (FLOTRAN).
NSEL - Valid Item and Component Labels for Element Result Values
Item Comp Description
S X, Y, Z, XY, YZ, XZ Component stress.
" 1, 2, 3 Principal stress.
" INT, EQV Stress intensity or equivalent stress.
EPTO X, Y, Z, XY, YZ, XZ Component total strain (EPEL + EPPL + EPCR).
" 1,2,3 Principal total strain.
" INT, EQV Total strain intensity or total equivalent strain.
EPEL X, Y, Z, XY, YZ, XZ Component elastic strain.
" 1, 2, 3 Principal elastic strain.
" INT, EQV Elastic strain intensity or elastic equivalent strain.
EPPL X, Y, Z, XY, YZ, XZ Component plastic strain.
" 1,2,3 Principal plastic strain.
" INT, EQV Plastic strain intensity or plastic equivalent strain.
EPCR X, Y, Z, XY, YZ, XZ Component creep strain.
" 1,2,3 Principal creep strain.
" INT, EQV Creep strain intensity or creep equivalent strain.
EPTH X, Y, Z, XY, YZ, XZ Component thermal strain.
" 1, 2, 3 Principal thermal strain.
" INT, EQV Thermal strain intensity or thermal equivalent strain.
EPSW Swelling strain.
NL SEPL Equivalent stress (from stress-strain curve).
" SRAT Stress state ratio.
" HPRES Hydrostatic pressure.
" EPEQ Accumulated equivalent plastic strain.
" PSV Plastic state variable.
" PLWK Plastic work/volume.
CONT STAT1 Contact status: 3-closed and sticking
2-closed and sliding
1-open but near contact
0-open and not near contact
" PENE Contact penetration.
" PRES Contact pressure.
" SFRIC Contact friction stress.
" STOT Contact total stress (pressure plus friction).
" SLIDE Contact sliding distance.
TG X, Y, Z, SUM Component thermal gradient or vector sum.
TF X, Y, Z, SUM Component thermal flux or vector sum.
PG X, Y, Z, SUM Component pressure gradient or vector sum.
EF X, Y, Z, SUM Component electric field or vector sum.
D X, Y, Z, SUM Component electric flux density or vector sum.
H X, Y, Z, SUM Component magnetic field intensity or vector sum.
B X, Y, Z, SUM Component magnetic flux density or vector sum.
FMAG X, Y, Z, SUM Component magnetic forces or vector sum.
TOPO Densities used for topological optimization. This applies to nodes attached to the following types of elements: PLANE82, SOLID92, SHELL93, SOLID95.
Status notation is for all contact elements except CONTAC12 and CONTAC52. If you are using these elements, check the output listing in the corresponding element documentation.
NSEL - Valid Item and Component Labels for FLOTRAN Nodal Result Values
Item Comp Description
TTOT Total temperature.
HFLU Heat flux.
HFLM Heat transfer (film) coefficient.
COND Fluid laminar conductivity.
PCOE Pressure coefficient.
PTOT Total (stagnation) pressure.
MACH Mach number.
STRM Stream function. (2-D applications only.)
DENS Fluid density.
VISC Fluid laminar viscosity.
EVIS Fluid effective viscosity.
CMUV Turbulent viscosity coefficient.
ECON Fluid effective conductivity.
YPLU Y+, a turbulent law of the wall parameter.
TAUW Shear stress at the wall.
Menu Paths
Main Menu>Preprocessor>Modeling>Create>Circuit>Delete Elements
Main Menu>Preprocessor>Modeling>Delete>Pre-tens Elemnts
Main Menu>Solution>Manual Rezoning>Create Remesh Zone(s)>Select Nodes to Maintain
Utility Menu>Select>Entities
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