×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

umeshmotion

umeshmotion

umeshmotion

(OP)
Hello to all

i am working with umeshmotion to simulate wear of sand productin in oil welbore. i can define mesh motion but i see in some of umesh motion code have a part:share of element consumed in next increment . i do not know what do this part of subroutine ? what means of ELINC OR CHARLENGTH ? maybe CHARLENGTH is characteristic element lenght maybe! but never i do not know means of ELINC . a sample of sobroutine:

subroutine umeshmotion(uref,ulocal,node,nndof,lnodetype,alocal,
* ndim,time,dtime,pnewdt,kstep,kinc,
* kmeshsweep,jmatyp,jgvblock,lsmooth)
C
include 'aba_param.inc'
C
CHARACTER*80 PARTNAME <<<<<<<<<<<<IN THIS SECTION DEFINE WEAR VELOCITY>>>>>>>>>>>>>>>>>
DIMENSION ARRAY(1000)
DIMENSION ULOCAL(*)
DIMENSION JGVBLOCK(*),JMATYP(*)
DIMENSION ALOCAL(NDIM,*)
PARAMETER (NELEMMAX=100)
DIMENSION JELEMLIST(NELEMMAX),JELEMTYPE(NELEMMAX)
PARAMETER (ALamda1=4.0D0,ALamda2=0.01D0)
PARAMETER (TRCON = 0.001)
PARAMETER (ELINC = 0.1D0)
DIMENSION TIME(2)


LOCNUM = 0
JRCD = 0
PARTNAME = ' '
PEEQ = 0.0D0
FPEEQ= 0.0D0
FPOROSITY=0.00D0
FRVF = 0.00D0
CHARLENGTH = UREF
JTYP = 1

CALL GETPARTINFO(NODE,0,PARTNAME,LOCNUM,JRCD)
NELEMS = NELEMMAX
CALL GETNODETOELEMCONN(NODE,NELEMS,JELEMLIST,JELEMTYPE,JRCD,
$ JGVBLOCK)
CALL GETVRMAVGATNODE(NODE,JTYP,'PE',ARRAY,JRCD,
$ JELEMLIST,NELEMS,JMATYP,JGVBLOCK)
PEEQ = ARRAY(7)

IF (PEEQ.GT.0.018D0) THEN

FPEEQ=Alamda1*(PEEQ-0.018D0)
If(FPEEQ.gt.ALamda2)FPEEQ=ALamda2

CALL GETVRMAVGATNODE(NODE,JTYP,'VOIDR',ARRAY,JRCD,
$ JELEMLIST,NELEMS,JMATYP,JGVBLOCK)
FPOROSITY = 1.0D0/(1.0D0+ARRAY(1))

CALL GETVRMAVGATNODE(NODE,JTYP,'FLVEL',ARRAY,JRCD,
$ JELEMLIST,NELEMS,JMATYP,JGVBLOCK)
FLVMAG = ARRAY(1)

SURFV = TRCON*FPEEQ*FPOROSITY*FLVMAG
if(LNODETYPE.EQ.3)SURFV=SURFV*1.41421356D0

ULOCAL(NDIM) = ULOCAL(NDIM)-SURFV

C SHARE OF ELEMENT CONSUMED IN NEXT INCREMENT<<<<<<<<<<<<<<<<<<<<<<<<<<<<HERE>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
PELEM = DTIME * SURFV / CHARLENGTH
PNEWDT1 = 0.0D0
IF (PELEM.GT.ELINC.AND.SURFV.GT.0.0D0) THEN
PNEWDT1 = CHARLENGTH * ELINC / SURFV
IF (PNEWDT1.LT.DTIME) THEN
WRITE (7,*) 'CHANGING TIME INCREMENT FROM ',DTIME
PNEWDT = PNEWDT1
WRITE (7,*) 'TO ',PNEWDT
WRITE (7,*) 'BASED ON NODE ',LOCNUM
PNEWDT = PNEWDT / DTIME
END IF
END IF
LSMOOTH = 1
END IF

return
end

RE: umeshmotion

and exactly why is this posted in the mining engineering forum??????????????

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close