[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

# Re: H,B Vector Plots

- To: femm@yahoogroups.com
- Subject: Re: H,B Vector Plots
- From: "alesteakira" <aleste2@latinmail.com>
- Date: Wed, 09 Apr 2003 08:20:53 -0000
- In-reply-to: <3E92E891.1000101@ieee.org>
- User-agent: eGroups-EW/0.82

    I agree with you that plotting arrows at each cell will be too coarse
    but you may limit to some "density" of arrows.
    The arrows may not be very usefull for serious aplications, but they
    may help a lot for my students (i am teaching electromagnetism). Now
    I am using Quickfield for them (because the vectors of D,E) but FEMM
    for the research, and I do really prefer FEMM.

    --- In femm@yahoogroups.com, David Meeker <dmeeker@i...> wrote:
    > djsquires@p... wrote:
    >
    > > I would like to add that perhaps some arrows to show polarity or
    flux
    > > flow directions similar to Quickfield would be nice too.
    Otherwise we
    > > have to check the sign of the point properties to be sure of
    this. But
    > > first you have to click a point on the plot to get some point
    properties
    > > displayed.
    > >
    > > A simple visual cue like arrows would help. Then if you have the
    contour
    > > plot displayed you know instantly the flux flow polarities
    anywhere on
    > > the plot without having to click a point to get the point property
    > > display. This is qualitative information sure, but it is still
    valuable
    > > for double checking coil current polarity reversal mistakes and
    such.
    > >
    > > This can be an option that can be turned on or off or set as a
    default
    > > just like all the other display formats.
    > >
    > > Regards,
    > > Dave Squires
    > >
    > > alesteakira wrote:
    > > > Is it possible to plot the vectors of H,B in FEMM
    > > > viewer? If not, do you think of including it in
    > > > future releases.?
    > >
    > I'd never included the vector plots (i.e. arrows indicating the
    strength
    > and direction of flux density plotted at each grid points) simply
    > because I've never found them to be that useful to me. It has
    always
    > seemed to me that the density of such plots is too coarse to convey
    that
    > much useful information. I could include them in a future release
    if
    > there is generally a strong desire for this functionality.
    >
    > Alternatively, it might be useful just to superimpose arrow heads
    on the
    > flux lines as they are currently plotted. The arrow heads indicate
    > direction, and the density of the lines would indicate field
    strength
    > (well, at least for 2D planar problems).
    >
    > Dave.
    > --
    > David Meeker
    > email: dmeeker@i...
    > www: http://femm.berlios.de/dmeeker

- References:
  - Re: [femm] H,B Vector Plots
    - From: David Meeker <dmeeker@ieee.org>

- Prev by Date: Re: [femm] skin effect in the rotor bars of a squirrel cage induction motor
- Next by Date: Composition of magnetic materials
- Previous by thread: Re: [femm] H,B Vector Plots
- Next by thread: Re: [femm] H,B Vector Plots
- Index(es):
  - Date
  - Thread