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n. (used with a sing. verb)
The branch of dynamics that deals with the motion of gases and the thermal effects of this motion.

gas′dy·nam′ic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
(4) Institute for Combustion and Gasdynamics (IVG), Chair of Fluid Dynamics, University of Duisburg-Essen, Duisburg, Germany
Computational Gasdynamics. Cambridge University Press, Cambridge, New York, NY, 1998.
Vinokur, "Conservation equations of gasdynamics in curvilinear coordinate systems," Journal of Computational Physics, vol.
They've also partnered with the Stanford High Temperature Gasdynamics Lab and the Flow Physics and Computational Engineering group to develop a number of new techniques to validate how they build physical models into the PSAAP computer code, Moin added.
During the War and in subsequent years, he worked in a variety of fields with a bias towards unsteady gasdynamics. These included external, internal, intermediate and terminal ballistics; heat transfer and erosion in gun-barrels; gasdynamics and effects of explosions; theories of damage; detonation and combustion; thermodynamics of solids and liquids under extreme conditions, etc.