Numerical simulation methods of incompressible flows and an application to the Space Shuttle main engine

Chang, J. L. C.; Kwak, Dochan; Rogers, Stuart E.; Yang, Ruey-Jen

doi:10.1002/fld.1650081011

Cited by 31 publications

(17 citation statements)

References 42 publications

(11 reference statements)

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“…Kwak et al [27], Chang et al [28], Choi and Merkle [29]). To obtain timedependent solutions using this method, an iterative procedure can be applied in each physical time step such that the continuity equation is satisfied.…”

Section: Artificial Compressibility Methodsmentioning

confidence: 99%

Successes and Challenges of Incompressible Flow Simulation

Kwak

Kiris

2003

16th AIAA Computational Fluid Dynamics Conference

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During the past thirty years, numerical methods and simulation tools for incompressible flows have been advanced as a subset of CFD discipline. Even though incompressible flows are encountered in many areas of engineering, simulation of compressible flow has been the major driver for developing computational algorithms and tools. This is probably due to rather stringent requirements for predicting aerodynamic performance characteristics of flight vehicles, while flow devices involving low speed or incompressible flow could be reasonably well designed without resorting to accurate numerical simulations. As flow devices are required to be more sophisticated and highly efficient, CFD tools become indispensable in fluid engineering for incompressible and low speed flow. This paper is intended to review some of the successes made possible by advances in computational technologies during the same period, and discuss some of the current challenges.

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Section: Artificial Compressibility Methodsmentioning

confidence: 99%

Successes and Challenges of Incompressible Flow Simulation

Kwak

Kiris

2003

16th AIAA Computational Fluid Dynamics Conference

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“…Various applications that evolved from the artificial compressibility concept have been reported for obtaining steady-state solutions (e.g., Kwak et al [27], Chang et al [28], Choi and Merkle [29]). To obtain timedependent solutions using this method, an iterative procedure can be applied in each physical time step such that the continuity equation is satisfied.…”

Section: Artificial Compressibility Methodsmentioning

confidence: 99%

“…[27]), was developed using this scheme. The original A'S3D code was extensively used as a primary design tooi for an upgraded design of the Space Shurrie main engine (SSME) hor gas manifold by Chang et al [28]. This was probably the fmt major CFD contribution to rocket propulsion system design.…”

Section: Numerical Schemesmentioning

confidence: 99%

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Computational challenges of viscous incompressible flows

2005

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Over the past thirty years, numerical methods and simulation tools for incompressible flows have been advanced as a subset of the computational fluid dynamics (CFD) discipline. Although incompressible flows are encountered in many areas of engineering, simulation of compressible flow has been the major driver for developing computational algorithms and tools. This is probably due to the rather stringent requirements for predicting aerodynamic performance characteristics of flight vehicles, while flow devices involving low-speed or incompressible flow could be reasonably well designed without resorting to accurate numerical simulations. As flow devices are required to be more sophisticated and highly erXcienf CFD took become increasingly important in fluid engineering for incompressible and low-speed flow. This paper reviews some of the successes made possible by advances in computational technologies dunng the same period, ana discusses some of &e current challenges faced in computing incompressible flows.

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“…For example, the incompressible flow solver developed by Kwak et ai [1]was extensively used for simulating the flow through space shuttle main engine power head components. The redesign of the space shuttle main engine hot gas manifold, guided by the computations of Chang et al [2] illustrates the nsefullness of CFD in the aerospace research.…”

Section: Introductionmentioning

confidence: 99%

Computation of incompressible viscous flows through artificial heart devices with moving boundaries

Kiris

Rogers²,

Kwak³

et al. 1993

Fluid Dynamics in Biology

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The current work illustrates the extension of computational fluid dynamics techniques to artificial heart flow simulation. Unsteady incompressible Navier-Stokes equations written in three-dimensional generalized curvilinear coordinates are solved iteratively at each physical time step until the incompressibility condition is satisfied. The solution method is based on the pseudo-compressibility approach and uses an impllcit-upwind differencing scheme together with the Gauss-Seidel line relaxation method. The efficiency and robustness of the time-accurate formulation of the numerical algorithm are tested by computing the flow through model geometries. A channel flow with a moving indentation is computed and validated with experimental measurements and other numerical solutions. In order to handle the geometric complexity and the moving boundary problems, a zonal method and an overlapped grid embedding scheme are employed, respectively. Steady-state solutions for the flow through a tilting-disk heart valve are compared against experimental measurements. Good agreement is obtained. The flow computation during the valve opening and closing is carried out to illustrate the moving boundary capability. Aided by experimental evidence, the flow through an entire Penn State artificial heart model is computed.

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Numerical simulation methods of incompressible flows and an application to the Space Shuttle main engine

Cited by 31 publications

References 42 publications

Successes and Challenges of Incompressible Flow Simulation

Successes and Challenges of Incompressible Flow Simulation

Computational challenges of viscous incompressible flows

Computation of incompressible viscous flows through artificial heart devices with moving boundaries

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