Implicit hybrid flux vector splitting scheme for unsteady flows with strong shock waves

Dimitris Drikakis, Jerzy Zoltak

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

An implicit hybrid Flux Vector Splitting scheme for unsteady flows with strong shock waves is presented. The hybrid FVS scheme is constructed by a combination of flux vector splitting and second-order artificial dissipation. This scheme is implemented in conjunction with an implicit unfactored method. Computations are performed for unsteady shock-wave diffraction over a cylinder and the interaction of a shock wave with a square cavity. Comparisons are presented with other numerical and experimental results from literature, including recent unstructured adaptive-grid computations. Emphasis is given on the accurate prediction of the unsteady pressure loads since this is of interest in engineering applications related to explosions and fluid-structure interaction.

Conference

ConferenceASME Fluids Engineering Division Summer Meeting, FEDSM 98
Abbreviated titleFEDSM 98
CountryUnited States
CityWashington, DC
Period21/06/9825/06/98

Fingerprint

Unsteady Flow
Shock Waves
Wave Diffraction
Adaptive Grid
Unstructured Grid
Implicit Method
Engineering Application
Interaction
Explosion
Dissipation
Cavity
Fluid
Numerical Results
Prediction
Experimental Results

Keywords

  • fluid structure interaction
  • shock waves
  • structural loads
  • unsteady flow

Cite this

Drikakis, D., & Zoltak, J. (1998). Implicit hybrid flux vector splitting scheme for unsteady flows with strong shock waves. Paper presented at ASME Fluids Engineering Division Summer Meeting, FEDSM 98, Washington, DC, United States.
Drikakis, Dimitris ; Zoltak, Jerzy. / Implicit hybrid flux vector splitting scheme for unsteady flows with strong shock waves. Paper presented at ASME Fluids Engineering Division Summer Meeting, FEDSM 98, Washington, DC, United States.
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author = "Dimitris Drikakis and Jerzy Zoltak",
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note = "ASME Fluids Engineering Division Summer Meeting, FEDSM 98, FEDSM 98 ; Conference date: 21-06-1998 Through 25-06-1998",

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Drikakis, D & Zoltak, J 1998, 'Implicit hybrid flux vector splitting scheme for unsteady flows with strong shock waves' Paper presented at ASME Fluids Engineering Division Summer Meeting, FEDSM 98, Washington, DC, United States, 21/06/98 - 25/06/98, .

Implicit hybrid flux vector splitting scheme for unsteady flows with strong shock waves. / Drikakis, Dimitris; Zoltak, Jerzy.

1998. Paper presented at ASME Fluids Engineering Division Summer Meeting, FEDSM 98, Washington, DC, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Implicit hybrid flux vector splitting scheme for unsteady flows with strong shock waves

AU - Drikakis, Dimitris

AU - Zoltak, Jerzy

PY - 1998/6/25

Y1 - 1998/6/25

N2 - An implicit hybrid Flux Vector Splitting scheme for unsteady flows with strong shock waves is presented. The hybrid FVS scheme is constructed by a combination of flux vector splitting and second-order artificial dissipation. This scheme is implemented in conjunction with an implicit unfactored method. Computations are performed for unsteady shock-wave diffraction over a cylinder and the interaction of a shock wave with a square cavity. Comparisons are presented with other numerical and experimental results from literature, including recent unstructured adaptive-grid computations. Emphasis is given on the accurate prediction of the unsteady pressure loads since this is of interest in engineering applications related to explosions and fluid-structure interaction.

AB - An implicit hybrid Flux Vector Splitting scheme for unsteady flows with strong shock waves is presented. The hybrid FVS scheme is constructed by a combination of flux vector splitting and second-order artificial dissipation. This scheme is implemented in conjunction with an implicit unfactored method. Computations are performed for unsteady shock-wave diffraction over a cylinder and the interaction of a shock wave with a square cavity. Comparisons are presented with other numerical and experimental results from literature, including recent unstructured adaptive-grid computations. Emphasis is given on the accurate prediction of the unsteady pressure loads since this is of interest in engineering applications related to explosions and fluid-structure interaction.

KW - fluid structure interaction

KW - shock waves

KW - structural loads

KW - unsteady flow

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M3 - Paper

ER -

Drikakis D, Zoltak J. Implicit hybrid flux vector splitting scheme for unsteady flows with strong shock waves. 1998. Paper presented at ASME Fluids Engineering Division Summer Meeting, FEDSM 98, Washington, DC, United States.