YAQUI: an arbitrary Lagrangian--Eulerian computer program for fluid flow at all speeds. A numerical fluid-dynamics computing technique is presented that com- bines the Implicit Continuous-fluid Eulerian (ICE) and the Arbitrary Lagranglan-Eulerinc (AIE) methods. An implicit treatment of the pressure equation similar to that in ICE enables the calculation of flows at all speedsfrontsupersonictofarsubsonic. Inaddition,theverticesofthe computing grid may be moved with the fluid in normal Lagrangian fashion or be held fixed in a Eulerian manner, or be moved in some arbitrary way togiveacontinuousrezoningcapability,asintheALEmethod. Greater distortions in the fluid motion can be handled than would be allowed by a purely Lagrangian method, and with more resolution than is afforded by a purely Eulerian method. The report describes the combined (ICED-ALE) technique in the framework of a computer program called YAQUI, for which thecompleteflowdiagramandF0RTRANindexlistingareprovided. Rep- resentative calculations illustrate some of the features of YAQUI, and include both computer-generated plots and numerical listings.

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  1. Barlow, Andrew J.; Maire, Pierre-Henri; Rider, William J.; Rieben, Robert N.; Shashkov, Mikhail J.: Arbitrary Lagrangian-Eulerian methods for modeling high-speed compressible multimaterial flows (2016)
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  5. Benson, David J.; Stainier, Laurent: An Eulerian shell formulation for fluid-structure interaction (2000)
  6. Hirt, C. W.; Amsden, A. A.; Cook, J. L.: An arbitrary Lagrangian-Eulerian computing method for all flow speeds (1997)
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  8. Benson, David J.: Computational methods in Lagrangian and Eulerian hydrocodes (1992)
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  10. Liu, Wing Kam; Ma, David C.: Computer implementation aspects for fluid structure interaction problems (1982)
  11. Hughes, Thomas J. R.; Liu, Wing Kam; Zimmermann, Thomas K.: Lagrangian-Eulerian finite element formulation for incompressible viscous flows (1981)
  12. Brandt, Achi; Dendy, J. E. jun.; Ruppel, Hans: The multigrid method for semi-implicit hydrodynamics codes (1980)
  13. Dukowicz, John K.: A particle-fluid numerical model for liquid sprays (1980)
  14. Hughes, Thomas J. R.; Liu, Wing Kam; Brooks, Alec: Finite element analysis of incompressible viscous flows by the penalty function formulation (1979)
  15. Hewett, D. W.; Nielson, C. W.: A multidimensional quasineutral plasma simulation model (1978)
  16. Westbrook, Charles K.: A generalized ICE method for chemically reactive flows in combustion systems (1978)
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  19. Harlow, Francis H.; Amsden, Anthony A.: Multifluid flow calculations at all Mach numbers (1974)
  20. Hirt, C. W.; Amsden, A. A.; Cook, J. L.: An arbitrary Lagrangian-Eulerian computing method for all flow speeds (1974)

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