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School of Mechanical and Materials Engineering Faculty

Jacob Leachman



  • Ph.D. in Mechanical Engineering, University of Wisconsin-Madison, 2010
  • M.S. in Mechanical Engineering, University of Idaho, 2007
  • B.S. in Mechanical Engineering, University of Idaho, 2005

Research Interests

  • Cryogenic hydrogen
  • Cryogenic thermophysical property modeling and measurement
  • Cryogenic system design
  • Hydrogen fueling of aerospace and medium/heavy duty vehicles
  • Fueling fusion energy machines

Research Areas

  • Energy
  • Thermo-fluid sciences
  • Design and Sustainability

Recognition and Honors

  • WSU Technology with an Impactful Contribution to Society Award (2023)
  • R.B. Scott Award from the Cryogenic Engineering Conference (2023)
  • Artemis Award from the NASA Big Ideas Challenge (2021)
  • Roger W. Boom Award from the Cryogenics Society of America (2018)
  • Western Association of Graduate Schools/University Manuscripts International Distinguished Thesis Award (2008)

Selected Publications

  • J.W. Leachman, O. Wilhelmsen, and K.I. Matveev, “Cool Fuel: The Science and Engineering of Cryogenic Hydrogen,” 1st Edition, Publisher: Oxford University Press (in press 2024).
  • J.W. Leachman, R.T Jacobsen, S.G. Penoncello, E.W. Lemmon, “Thermodynamic Properties of Cryogenic Fluids,” 2nd Edition, Springer International Cryogenic Monographs Series (2017).
  • I. Bell, J.W. Leachman, A. Rigosi, et al., “Quantum entropic effects in the liquid viscosities of hydrogen, deuterium, and neon,” Physics of Fluids, vol. 35, 081703 (2023);
  • K.I. Matveev and J.W. Leachman, “Modeling of Liquid Hydrogen Tank Cooled with Para-Orthohydrogen Conversion,” Hydrogen, vol. 4, no. 1, pp. 146-153, (2023);
  • J.W. Leachman, R.T Jacobsen, S.G. Penoncello, and E.W. Lemmon, “Fundamental Equations of State for Parahydrogen, Normal Hydrogen, and Orthohydrogen.” Journal of Physical and Chemical Reference Data, 38, (2009), 721–748, DOI:10.1063/1.3160306.

Intellectual Property

  • J.W. Leachman, and M.W. Wood, “Conformable valve seat for cryogenics,” submitted in 10/2022.
  • J.W. Leachman, J. McCloy, M. McCluskey, and S. Beckmann, “Cryogenic Hydrogen Diode,” submitted in 2/2022.
  • J.W. Leachman, K. Westra, P. Adam, and F. Dunne, “Collapsible Container for Cryogenic Storage and Movement,” submitted in 2/2022.
  • J.W. Leachman, “Para-Orthohydrogen Conversion Using a Vortex Tube,” United States Patent US 10,425,294 B2, Issued: 10/08/2019.
  • J.W. Leachman and P. Adam, “Vapor Cooled Shielding Liner for Cryogenic Storage in Composite Pressure Vessels,” United States Patent US 10,422,478 B2, Issued: 09/24/2019.