William H. Matthaeus

Last updated
William Henry Matthaeus
NationalityAmerican
Education University of Pennsylvania (B.A.)
Old Dominion University (M.A.)
College of William and Mary (M.S., Ph.D.)
Awards
Scientific career
Fields Plasma physics
Thesis Nonlinear Evolution of the Magnetohydrodynamic Sheet Pinch (1979)
Doctoral advisor David Campbell Montgomery
Website web.physics.udel.edu/about/directory/faculty/william-matthaeus

William Henry Matthaeus (born 1951) is an American astrophysicist and plasma physicist. He is known for his research on turbulence in magnetohydrodynamics (MHD) (e.g. numerical simulations and kinetic theory) [1] [2] [3] [4] and astrophysical plasmas (e.g. solar wind and its fluctuations), [5] [6] [7] [8] [9] [10] for which he was awarded the 2019 James Clerk Maxwell Prize for Plasma Physics. [11]

Contents

Early life and career

Matthaeus graduated from the University of Pennsylvania with a bachelor's degree in physics and philosophy in 1973 on a scholarship from the Mayor of Philadelphia. In 1975, he received an M.A. in physics at Old Dominion University in Norfolk, Virginia, and then received an M.S. in physics and Ph.D in physics at the College of William and Mary in 1977 and 1979 respectively. [11] His thesis was on "Nonlinear Evolution of the Magnetohydrodynamic Sheet Pinch" and he was supervised by David Campbell Montgomery. [12] Since 1983, he has been affiliated with the Bartol Research Institute and is currently Unidel Professor of Physics and Astronomy at the University of Delaware. [13]

Matthaeus is involved in the Swarthmore Spheromak experiment and since 2004 has been significantly involved in the Parker Solar Probe, launched in 2018, [14] to study the corona of the sun. He has been director of NASA's Delaware Space Grant since 2016. [15]

In the 1990s, Matthaeus applied the Lattice Boltzmann method to magnetohydrodynamics [16] and in 1992, published a well-cited paper showing that it was possible to recover the Navier-Stokes equation by using the Lattice Boltzmann method. [17]

Honors and awards

In 1985, Matthaeus received the James B. MacElwane Award from the American Geophysical Union [18] and became its fellow. He was then elected a fellow of the American Physical Society in 1998. [19]

In 2019, he received the James Clerk Maxwell Prize for Plasma Physics for "pioneering research into the nature of turbulence in space and astrophysical plasmas, which has led to major advances in understanding particle transport, dissipation of turbulent energy, and magnetic reconnection ". [11]

Related Research Articles

<span class="mw-page-title-main">Magnetohydrodynamics</span> Model of electrically conducting fluids

Magnetohydrodynamics is a model of electrically conducting fluids that treats all interpenetrating particle species together as a single continuous medium. It is primarily concerned with the low-frequency, large-scale, magnetic behavior in plasmas and liquid metals and has applications in numerous fields including geophysics, astrophysics, and engineering.

<span class="mw-page-title-main">Alfvén wave</span> Low-frequency plasma wave

In plasma physics, an Alfvén wave, named after Hannes Alfvén, is a type of plasma wave in which ions oscillate in response to a restoring force provided by an effective tension on the magnetic field lines.

In plasma physics, magnetic helicity is a measure of the linkage, twist, and writhe of a magnetic field. In ideal magnetohydrodynamics, magnetic helicity is conserved. When a magnetic field contains magnetic helicity, it tends to form large-scale structures from small-scale ones. This process can be referred to as an inverse transfer in Fourier space.

<span class="mw-page-title-main">Magnetic reconnection</span> Process in plasma physics

Magnetic reconnection is a physical process occurring in electrically conducting plasmas, in which the magnetic topology is rearranged and magnetic energy is converted to kinetic energy, thermal energy, and particle acceleration. Magnetic reconnection involves plasma flows at a substantial fraction of the Alfvén wave speed, which is the fundamental speed for mechanical information flow in a magnetized plasma.

<span class="mw-page-title-main">Cluster II (spacecraft)</span> European Space Agency mission

Cluster II is a space mission of the European Space Agency, with NASA participation, to study the Earth's magnetosphere over the course of nearly two solar cycles. The mission is composed of four identical spacecraft flying in a tetrahedral formation. As a replacement for the original Cluster spacecraft which were lost in a launch failure in 1996, the four Cluster II spacecraft were successfully launched in pairs in July and August 2000 onboard two Soyuz-Fregat rockets from Baikonur, Kazakhstan. In February 2011, Cluster II celebrated 10 years of successful scientific operations in space. In February 2021, Cluster II celebrated 20 years of successful scientific operations in space. As of March 2023, its mission has been extended until September 2024. The China National Space Administration/ESA Double Star mission operated alongside Cluster II from 2004 to 2007.

In magnetohydrodynamics (MHD), shocks and discontinuities are transition layers where properties of a plasma change from one equilibrium state to another. The relation between the plasma properties on both sides of a shock or a discontinuity can be obtained from the conservative form of the MHD equations, assuming conservation of mass, momentum, energy and of .

An ionization instability is any one of a category of plasma instabilities which is mediated by electron-impact ionization. In the most general sense, an ionization instability occurs from a feedback effect, when electrons produced by ionization go on to produce still more electrons through ionization in a self-reinforcing way.

<span class="mw-page-title-main">Adolfo Figueroa Viñas</span> Puerto Rican astrophysicist

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Magnetohydrodynamic turbulence concerns the chaotic regimes of magnetofluid flow at high Reynolds number. Magnetohydrodynamics (MHD) deals with what is a quasi-neutral fluid with very high conductivity. The fluid approximation implies that the focus is on macro length-and-time scales which are much larger than the collision length and collision time respectively.

James Michael Lattimer is a nuclear astrophysicist who works on the dense nuclear matter equation of state and neutron stars.

<span class="mw-page-title-main">Tokamak sawtooth</span> Relaxation in the core of tokamak plasmas

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Hartmut Zohm is a German plasma physicist who is known for his work on the ASDEX Upgrade machine. He received the 2014 John Dawson Award and the 2016 Hannes Alfvén Prize for successfully demonstrating that neoclassical tearing modes in tokamaks can be stabilized by electron cyclotron resonance heating, which is an important design consideration for pushing the performance limit of the ITER.

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Guy Laval is a French physicist, professor at the École polytechnique and member of the French Academy of Sciences.

<span class="mw-page-title-main">Akira Hasegawa</span>

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Gregor Eugen Morfill is a German physicist who works in basic astrophysical research and deals with complex plasmas and plasma medicine.

Patrick Henry Diamond is an American theoretical plasma physicist. He is currently a professor at the University of California, San Diego, and a director of the Fusion Theory Institute at the National Fusion Research Institute in Daejeon, South Korea, where the KSTAR Tokamak is operated.

Toshiki Tajima is a Japanese theoretical plasma physicist known for pioneering the laser wakefield acceleration technique with John M. Dawson in 1979. The technique is used to accelerate particles in a plasma and was experimentally realized in 1994, for which Tajima received several awards such as the Nishina Memorial Prize (2006), the Enrico Fermi Prize (2015), the Robert R. Wilson Prize (2019), the Hannes Alfvén Prize (2019) and the Charles Hard Townes Award (2020).

Hudong Chen is a physicist.

<span class="mw-page-title-main">James Dungey</span> British space scientist

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References

  1. Shebalin, John V.; Matthaeus, William H.; Montgomery, David (1983). "Anisotropy in MHD turbulence due to a mean magnetic field". Journal of Plasma Physics. 29 (3): 525–547. Bibcode:1983JPlPh..29..525S. doi:10.1017/s0022377800000933. hdl: 2060/19830004728 . ISSN   0022-3778. S2CID   122509800.
  2. Matthaeus, W. H.; Lamkin, S. L. (1986). "Turbulent magnetic reconnection". Physics of Fluids. 29 (8): 2513. Bibcode:1986PhFl...29.2513M. doi:10.1063/1.866004. ISSN   0031-9171.
  3. Bieber, John W.; Matthaeus, William H.; Smith, Charles W.; Wanner, Wolfgang; Kallenrode, May-Britt; Wibberenz, Gerd (1994). "Proton and electron mean free paths: The Palmer consensus revisited". The Astrophysical Journal. 420: 294. Bibcode:1994ApJ...420..294B. doi: 10.1086/173559 . ISSN   0004-637X.
  4. Servidio, S.; Matthaeus, W. H.; Dmitruk, P. (2008). "Depression of Nonlinearity in Decaying Isotropic MHD Turbulence". Physical Review Letters. 100 (9): 095005. Bibcode:2008PhRvL.100i5005S. doi:10.1103/physrevlett.100.095005. hdl: 11336/61982 . ISSN   0031-9007. PMID   18352719.
  5. Matthaeus, William H.; Goldstein, Melvyn L. (1982). "Measurement of the rugged invariants of magnetohydrodynamic turbulence in the solar wind". Journal of Geophysical Research. 87 (A8): 6011. Bibcode:1982JGR....87.6011M. doi:10.1029/ja087ia08p06011. hdl: 11603/30515 . ISSN   0148-0227.
  6. Goldstein, M. L.; Roberts, D. A.; Matthaeus, W. H. (1995). "Magnetohydrodynamic Turbulence in the Solar Wind". Annual Review of Astronomy and Astrophysics. 33 (1): 283–325. Bibcode:1995ARA&A..33..283G. doi:10.1146/annurev.aa.33.090195.001435. hdl: 2060/19840005005 . ISSN   0066-4146.
  7. Bieber, John W.; Wanner, Wolfgang; Matthaeus, William H. (1996). "Dominant two-dimensional solar wind turbulence with implications for cosmic ray transport". Journal of Geophysical Research: Space Physics. 101 (A2): 2511–2522. Bibcode:1996JGR...101.2511B. doi:10.1029/95ja02588. ISSN   0148-0227.
  8. Leamon, Robert J.; Smith, Charles W.; Ness, Norman F.; Matthaeus, William H.; Wong, Hung K. (1998). "Observational constraints on the dynamics of the interplanetary magnetic field dissipation range". Journal of Geophysical Research: Space Physics. 103 (A3): 4775–4787. Bibcode:1998JGR...103.4775L. doi: 10.1029/97ja03394 . ISSN   0148-0227.
  9. Zhou, Ye; Matthaeus, W.; Dmitruk, P. (2004). "Colloquium: Magnetohydrodynamic turbulence and time scales in astrophysical and space plasmas". Reviews of Modern Physics. 76 (4): 1015–1035. Bibcode:2004RvMP...76.1015Z. doi:10.1103/revmodphys.76.1015. ISSN   0034-6861.
  10. Matthaeus, W. H.; Zank, G. P.; Smith, C. W.; Oughton, S. (1999). "Turbulence, Spatial Transport, and Heating of the Solar Wind". Physical Review Letters. 82 (17): 3444–3447. Bibcode:1999PhRvL..82.3444M. doi:10.1103/physrevlett.82.3444. hdl: 10289/8611 . ISSN   0031-9007.
  11. 1 2 3 "2019 James Clerk Maxwell Prize for Plasma Physics Recipient". American Physical Society. Retrieved February 29, 2020.
  12. "William Matthaeus - The Mathematics Genealogy Project". genealogy.math.ndsu.nodak.edu. Retrieved February 29, 2020.
  13. "William Matthaeus | University of Delaware Dept. of Physics & Astronomy". web.physics.udel.edu. Retrieved February 29, 2020.
  14. "Dr. William Matthaeus, Unidel professor of physics and astronomy, University of Delaware | Newark Life". www.newarklifemagazine.com. Retrieved February 29, 2020.
  15. "Delaware Space Grant Consortium - Message From The Director". www.delspace.org. Retrieved February 29, 2020.
  16. Chen, Shiyi; Chen, Hudong; Martnez, Daniel; Matthaeus, William (1991). "Lattice Boltzmann model for simulation of magnetohydrodynamics". Physical Review Letters. 67 (27): 3776–3779. Bibcode:1991PhRvL..67.3776C. doi:10.1103/physrevlett.67.3776. ISSN   0031-9007. PMID   10044823.
  17. Chen, Hudong; Chen, Shiyi; Matthaeus, William H. (1992). "Recovery of the Navier-Stokes equations using a lattice-gas Boltzmann method". Physical Review A. 45 (8): R5339–R5342. Bibcode:1992PhRvA..45.5339C. doi:10.1103/physreva.45.r5339. ISSN   1050-2947. PMID   9907724.
  18. "William H. Matthaeus". Honors Program. Retrieved February 29, 2020.
  19. "APS Fellow Archive". www.aps.org. Retrieved February 29, 2020.