CFD validation strategies for compressible flow using interferometry

Babinsky, Holger; Takayama, K.

doi:10.2514/6.1996-438

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…If the point, P(x , y , z ), is out of the physical domain the density at it is set to be ρ 0 so that there will be no contribution from it to density integration by using Eq. (2). If this point falls into the physical domain it is necessary to count its contribution.…”

Section: An Efficient Algorithm For Three-dimensional Density Integramentioning

confidence: 99%

“…So, these methods must use a linear interpolation between fringes to obtain more data, which leads to errors in highly non-linear flowfields. Fourier transform fringe analysis supplies more information with high accuracy but is limited when the hetrodyning frequency of the finite-fringe interferograms is low, as discussed by Babinsky and Takayama [2]. However, all of the above-mentioned methods are of limited use for three-dimensional unsteady flows.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Investigation into the Validation of Numerical Solutions of Complex Flowfields

Jiang¹,

Takayama²

1999

Journal of Computational Physics

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Section: An Efficient Algorithm For Three-dimensional Density Integramentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Investigation into the Validation of Numerical Solutions of Complex Flowfields

Jiang¹,

Takayama²

1999

Journal of Computational Physics

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Reliable validation based on optical flow visualization for CFD simulations

姜宗林

2003

Acta Mech Sinica

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A reliable validation based on the optical flow visualization for numerical simulations of complex flowfields is addressed in this paper. Several test cases, including two-dimensional, axisymmetric and three-dimensional flowfields, were presented to demonstrate the effectiveness of the validation and gain credibility of numerical solutions of complex flowfields. In the validation, images of these flowfields were constructed from numerical results based on the principle of the optical flow visualization, and compared directly with experimental interferograms. Because both experimental and numerical results are of identical physical representation, the agreement between them can be evaluated effectively by examining flow structures as well as checking discrepancies in density. The study shows that the reliable validation can be achieved by using the direct comparison between numerical and experiment results without any loss of accuracy in either of them.

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