dpd

Title	" BIOENG-455 Exercises 2021 "
Date    07/09/21
Comment	" Entropic spring simulation: what is the force-extension curve?  "


State	random


Bead  W
      0.5
      25
      4.5	

Bead  B
      0.5
      25    25
      4.5   4.5

Bead  BH
      0.5
      25   25   25
      4.5  4.5  4.5

Bead  BT
      0.5
      25   25   25   25
      4.5  4.5  4.5  4.5
      


Bond  BH B 128.0  0.5
Bond  BT B 128.0  0.5
Bond  B B  128    0.5

Polymer	Water    0.99995   " (W) "
Polymer Spring   0.00005   " (BH (14 B) BT) "

Box         30  15  15       1  1  1
Density		3
Temp        1
RNGSeed		-443907
Lambda		0.5
Step		0.01
Time		6000
SamplePeriod     10
AnalysisPeriod	 2000
DensityPeriod    6000
DisplayPeriod    100
RestartPeriod    6000
Grid		1  1  1


Command	ToggleBeadDisplay             1    W
Command SetCurrentStateCamera         1    0.5 -1.0 -0.5  0.5 0.5 0.5
Command SetCurrentStateDefaultFormat  1    Paraview

Command SelectBeadTypeInSimBox        1  head  BH
Command SelectBeadTypeInSimBox        1  tail  BT

Command ConstantForceOnTarget         1000  head  fh   1 0 0   1.0
Command ConstantForceOnTarget         1000  tail  ft   1 0 0   -1.0

Command RemoveCommandTargetActivity   4000   fh
Command RemoveCommandTargetActivity   4000   ft