Mhd Definition and 13 Threads

  1. D

    I Question about magnetohydrodynamics (MHD) for electricity production

    According to the MHD theory, is case of energy production, a magnetic appplying a magnetic field to a moving charge perpendicular to the magnetic field, that could be plasma as well a solution full of ions, and placing two plates, electricity could be produced. Now I have a question, let's say...
  2. fRod57

    How can I make a simple inductive MHD thruster in water simulation?

    Homework Statement:: Simualte the behaviour of water around an mhd inductive thruster Relevant Equations:: https://www.comsol.fr/paper/download/45837/Pintus.pdf Where can I start this simulation ? What is the required software ? [Mentor Note -- thread moved from the technical forums]
  3. fRod57

    Use of hard drive magnets to build an MHD propulsion ship

    In order to build a small mhd propulsion ship for a physics project, I'm wondering if the magnets we find in hard drives carry enough magnetic field power to function in such an experiment.
  4. A

    Mystery Voltage: Investigating a Strange Phenomenon in MHD Testing

    So something weird just happened along the way in my experiment, here is a little background of what I'm doing. I have created a roughly 3x5mm inner diameter rectangular shaped channel for MHD liquid testing for one other project of mine, it's a simple conduction type MHD pump where the...
  5. T

    MHD Generator Performance with Ionised Gas

    As per this wikipedia page, plasma is necessary for functioning of an MHD Generator. But, what I want to know is if just simple ionised gas is used instead of plasma, will the generator perform in the same way? As per my little knowledge of physics, there is no reason that it wouldn't. Because...
  6. G

    B MHD pump idea for school project

    Hello everyone, I wanted to ask one question. My friend has a physics exam at school were the topic is to come up with a interesting yet simple physical device that would prove a single or multiple physics concepts. Now we were thinking that it would be interesting to experiment with the...
  7. Mzzed

    I Interpretation of spatially dependent convective derivative

    <Moderator's note: Moved from the homework forum.> Homework Statement The following equation is one of a few equations that describe a plasma model. The left hand side is the part I am having trouble with in that I can't seem to visualise what (V dot delV) actually does. My physics teacher has...
  8. rogerk8

    Best MHD Books: A Comprehensive Guide to Magnetic Hydro Dynamics

    Hi! I wish to learn about MHD (Magnetic Hydro Dynamics). What book do you recommend? Roger
  9. C

    MHD Generators - What electrodes to use?

    Hi everyone, What type of electrodes should I use for an AC saltwater MHD generator? I need something that is efficient yet corrosive resistant. Thanks
  10. M

    MHD equations - confused about derivation

    I am confused about the usual derivation of the ideal magnetohydrodynamic equations, as given for example here: http://theoretical-physics.net/dev/src/fluid-dynamics/mhd.html The problem is that there are a few different "currents" to consider. For example, in the momentum equation, the...
  11. R

    Are there any people actively doing research in MHD topics these days?

    Are there any people actively doing research in MHD topics these days? It seems like an interesting field, but all the information I've come across only dates as recent as the early 1990's. What happened? :confused:
  12. M

    MHD Energy Equation: Comparing Formats

    Is this the right format of the energy equation (equation 2.10)? http://www-solar.mcs.st-and.ac.uk/~alan/sun_course/Chapter2/node3.html#energy \frac{\rho^\gamma}{\gamma-1}\frac{D}{Dt}\left(\frac{p}{\rho^\gamma}\right)=-L I know it in a different format: \frac{dp}{dt}+\gamma...
  13. T

    Journal/References for MHD Propulsion

    hi i would like some journals/references on "MHD Propulsion" please try to get it in ebook format...if not possible nytin else will do but please avoid asking me to buy it. thanx
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