Concept

Similitude

Publications associées (46)

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Similarity solution of axisymmetric flow in porous media

David Andrew Barry, Marc Parlange

Applications of the axisymmetric Boussinesq equation to groundwater hydrology and reservoir engineering have long been recognised. An archetypal example is invasion by drilling fluid into a permeable bed where there is initially no such fluid present, a ci ...

2005

Physical modelling of leading edge cavitation

Youcef Ait Bouziad

Cavitation is usually the main physical phenomenon behind performance alterations in hydraulic machinery. For this reason, it is crucial to accurately predict its inception and development and to highlight a comprehensive relation between the cavitation de ...

EPFL2005

Tuning of a Basic Coordination Pattern Constructs Straight-Ahead and Curved Walking in Humans

Grégoire Courtine

We tested the hypothesis that common principles govern the production of the locomotor patterns for both straight-ahead and curved walking. Whole body movement recordings showed that continuous curved walking implies substantial, limb-specific changes in n ...

2004

Winter cascading of cold water in Lake Geneva

Ulrich Lemmin

[1] During the winters of 1998 and 1999, observations were made of the cascading of cold water from the nearshore, shallow "shelf'' zones and down the sloping sides of Lake Geneva. Cascading starts on the average 10 hours after the onset of surface cooling ...

2002

Similitude applied to centrifugal scaling of unsaturated flow

David Andrew Barry

Centrifuge experiments modeling single-phase flow in prototype porous media typically use the same porous medium and permeant. Then, well-known scaling laws are used to transfer the results to the prototype. More general scaling laws that relax these restr ...

2001

Similarity rules of cavitation tests : the case of the Francis turbine

François Avellan

On the basis of experimental studies on the influence of the test head and the water nuclei content on the performance of a Francis turbine, we have shown that outlet cavitation is influenced by the active nuclei content of the test loop water. Numerical s ...

International Association For Hydraulic Research1988