Výsledky vyhledávání - "J. H. Gerrard"

NUMERICAL STUDY OF THE INSTABILITIES IN THE NEAR WAKE OF A CIRCULAR CYLINDER AT LOW REYNOLDS NUMBER

Autor: J. H. Gerrard

Publikováno v: Journal of Fluids and Structures. 11:271-291

Numerical experiments are described which followed the experimental observation of the production of an oscillatory wake by the insertion of a control rod on the centre line of the near wake at Reynolds numbers, Re, (based on diameter, d) less than t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a2f38390ded58596b07801f102c55ecf
https://doi.org/10.1006/jfls.1996.0077

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CALCULATION OF STEADY AND OSCILLATING FLOWS IN TUBES USING A VORTICITY TRANSPORT ALGORITHM

Autor: A. W. Johnson, J. H. Gerrard

Publikováno v: International Journal for Numerical Methods in Fluids. 23:1241-1262

SUMMARY Steady and oscillating axisymmetric tube flows are modelled using a vorticity transport algorithm. The axisymmetric convectivediffisive Navier-Stokes equations are solved using a splitting technique. Axisymmetric ring vortex filaments are int

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0053cd2902d3eaa3ed451a9c1d55830
https://doi.org/10.1002/(sici)1097-0363(19961230)23:12<1241::aid-fld472>3.0.co

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Vorticity measurements in the near wake of a circular cylinder at low Reynolds numbers

Autor: R. B. Green, J. H. Gerrard

Publikováno v: Journal of Fluid Mechanics. 246:675-691

The technique of the particle streak method has been applied to the study of bluff-body wakes at low Reynolds number. Vorticity and shear stress were measured to an accuracy of 15–20%. The vortex shedding cycles at Reynolds number of 73 and 226 are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a980fff1779ccd2ea02879783968182c
https://doi.org/10.1017/s002211209300031x

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An optical interferometric study of the wake of a bluff body

Autor: J. H. Gerrard, R. B. Green

Publikováno v: Journal of Fluid Mechanics. 226:219-242

A Fizeau optical interferometer has been used to visualize the wake behind a circular cylinder at low Reynolds numbers Re. As well as showing the vortex shedding mechanism and development of the far wake in a new light, the shed vortex strength and a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c0e2b98eadde78d352523131f2c7fac7
https://doi.org/10.1017/s0022112091002367

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Numerical Analysis of the Instabilities in the Near Wake of a Circular Cylinder at Low Reynolds Numbers

Autor: J. H. Gerrard

Publikováno v: Bluff-Body Wakes, Dynamics and Instabilities ISBN: 9783662004166

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5a1e82a2c6379da13ebb07c9c438deb
https://doi.org/10.1007/978-3-662-00414-2_30

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Experiments and Numerical Analysis Relating to Atherogenesis

Autor: J. H. Gerrard

Publikováno v: Biomechanical Transport Processes ISBN: 9781475715132

The arterial wall has constituents which behave as mechano-receptors. It is known, for example, that smooth muscle cells proliferate under the action of applied oscillating stress. There are regions of arterial flow which may be associated with fluct

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dbcc04bae62aae64b846c960b1ec5342
https://doi.org/10.1007/978-1-4757-1511-8_35

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Convergence properties of panel methods

Autor: I. Gladwell, P. G. Bellamy-Knight, M. G. Benson, J. H. Gerrard

Publikováno v: Computer Methods in Applied Mechanics and Engineering. 76:171-178

The effects of body curvature and panel strength variation on the rates of convergence of two-dimensionnal panel methods are re-examined to resolve several paradoxes arising from previous work. Flows past circular and elliptical cylinders, for which

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a45bee9120f13c276054614ed635697a
https://doi.org/10.1016/0045-7825(89)90094-7

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Analytical surface singularity distributions for flow about cylindrical bodies

Autor: J. H. Gerrard, I. Gladwell, P. G. Bellamy-Knights, M. G. Benson

Publikováno v: Journal of Engineering Mathematics. 23:261-271

In this paper exact analytical values of surface singularity distributions for two-dimensional potential flows are presented. A general formulation which provides an alternative to the Milne-Thomson theorem is presented for the circle, then distribut

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d27c8b0bce4488bdf372f16c6853803c
https://doi.org/10.1007/bf02383573

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Numerical analysis of the flow through a corrugated tube with application to arterial prostheses

Autor: J. H. Gerrard, C. N. Savvides

Publikováno v: Journal of Fluid Mechanics. 138:129-160

Steady and oscillating axisymmetric laminar flows are determined by a finite-difference solution of the vorticity and continuity equations for an incompressible fluid contained in a straight concertina-shaped tube far from its ends. In steady flow th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65ceba7836d20344b20995170172b6ad
https://doi.org/10.1017/s0022112084000069

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