Search Results - "MERZKIRCH, W"

A novel PIV technique for measurements in multiphase flows and its application to two-phase bubbly flows by LINDKEN, R, MERZKIRCH, W

“…A new experimental procedure for performing simultaneous, phase-separated velocity measurements in two-phase flows is introduced. Basically, the novel particle…”
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A comparative study of the MQD method and several correlation-based PIV evaluation algorithms by GUI, L, MERZKIRCH, W

“…The Minimum Quadratic Difference (MQD) method is compared with methods conventionally used for the evaluation of PIV recordings, i.e., correlation-based…”
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Investigations of the measurement accuracy of stereo particle image velocimetry by FEI, R, MERZKIRCH, W

“…With a stereo PIV system, in order to perform reliable measurements of the three velocity components in liquid flow, it is mandatory to minimise the errors…”
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Combined convective and radiative heat transfer in side-vented open cavities by Ramesh, N., Merzkirch, W.

“…Steady, combined laminar natural convection and surface radiation heat transfer from side-vented open cavities with top opening have been studied for different…”
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Velocity measurements of liquid and gaseous phase for a system of bubbles rising in water by LINDKEN, R, MERZKIRCH, W

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A digital mask technique for reducing the bias error of the correlation-based PIV interrogation algorithm by GUI, L, MERZKIRCH, W, FEI, R

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Density-sensitive whole-field flow measurement by optical speckle photography by Merzkirch, W

“…An optical whole-field, line-of-sight method is surveyed that allows the measurement of the refractive deflection angles of light transmitted through a flow…”
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Spray analysis of a gasoline direct injector by means of two-phase PIV by ROTTENKOLBER, G, GINDELE, J, RAPOSO, J, DULLENKOPF, K, HENTSCHEL, W, WITTIG, S, SPICHER, U, MERZKIRCH, W

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A method of tracking ensembles of particle images by GUI, L. C, MERZKIRCH, W

“…A method for tracking ensembles of particle images of a digital particle-image velocimetry (PIV) record by making use of the minimum quadratic difference…”
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Generating arbitrarily sized interrogation windows for correlation-based analysis of particle image velocimetry recordings by GUI, L, MERZKIRCH, W

“…We describe a technique that allows an arbitrary size of the interrogation window when using the traditional FFT algorithm in analyses of PIV recordings by…”
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Digital speckle photography and speckle tomography in heat transfer studies by Asseban, A., Lallemand, M., Saulnier, J.-B., Fomin, N., Lavinskaja, E., Merzkirch, W., Vitkin, D.

“…The line-of-sight speckle photography of transparent media is used for quantitative measurements of the instantaneous temperature fields in 3D unsteady flows…”
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PIV measurements of the time-averaged flow velocity downstream of flow conditioners in a pipeline by Schlüter, Th, Merzkirch, W.

“…The flow downstream of three different flow conditioners, a tube bundle and two perforated plates, was investigated by measuring the time-averaged, axial…”
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Interaction of a normal shock wave with a compressible turbulent flow by Keller, J., Merzkirch, W.

“…A speckle photographic method, which is sensitive to changes of gradients in fluid density, is applied for analyzing a compressible turbulent air flow with…”
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Speckle photography applied to statistical analysis of turbulence by Fomin, N., Lavinskaja, E., Merzkirch, W., Vitkin, D.

“…A speckle photographic technique is used for visualizing the planar distribution of the refractive deflection angles of light transmitted through the…”
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On the accuracy of a MJPEG-based digital image compression PIV-system by FREEK, C, SOUSA, J. M. M, HENTSCHEL, W, MERZKIRCH, W

“…The Digital Image Compression (DIC)-PIV system is introduced. The present system allows the measurement of mean and rms velocities in turbulent flow fields,…”
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Turbulence microscale variation due to interaction with shock wave by Fomin, N., Lavinskaja, E., Merzkirch, W., Vitkin, D.

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PIV measurements in multiphase flow with nominally high concentration of the solid phase by ZACHOS, A, KAISER, M, MERZKIRCH, W

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In remembrance of J.H. Whitelaw by Merzkirch, W.

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Quantitative visualization of the change of turbulence structure caused by a normal shock wave by Vitkin, D., Merzkirch, W., Fomin, N.

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Visualization of turbulence anisotropy by single exposure speckle photography by FOMIN, N, MERZKIRCH, W, VITKIN, D, WINTRICH, H

“…This paper describes a new technique based on single exposure speckle photography that makes it possible to measure the degree of anisotropy of turbulence in a…”
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