1. |
I. PROPOS DU SECRÉTAIRE / I. NOTES OF THE SECRETARY |
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International Association of Scientific Hydrology. Bulletin,
Volume 14,
Issue 2,
1969,
Page 3-3
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ISSN:0020-6024
DOI:10.1080/02626666909493713
出版商:Taylor & Francis Group
年代:1969
数据来源: Taylor
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2. |
LABORATORIES DE MÉCANIQUE DES FLUIDES DOMAINE UNIVERSITAIRE—38—SAINT-MARTIN d'HERES |
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International Association of Scientific Hydrology. Bulletin,
Volume 14,
Issue 2,
1969,
Page 7-13
Le Secrétariat du Colloque,
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ISSN:0020-6024
DOI:10.1080/02626666909493714
出版商:Taylor & Francis Group
年代:1969
数据来源: Taylor
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3. |
CONSIDÉRATIONS GÉNÉRALES SUR L'ORIENTATION DES RECHERCHES SUR LES MOUVEMENTS DE L'EAU EN RÉGIME NON SATURÉ |
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International Association of Scientific Hydrology. Bulletin,
Volume 14,
Issue 2,
1969,
Page 15-16
R. DEGALLIER,
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ISSN:0020-6024
DOI:10.1080/02626666909493715
出版商:Taylor & Francis Group
年代:1969
数据来源: Taylor
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4. |
COUPLING PHENOMENA AS A POSSIBLE CAUSE OF “NON-DARCIAN” BEHAVIOUR OF WATER IN SOIL |
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International Association of Scientific Hydrology. Bulletin,
Volume 14,
Issue 2,
1969,
Page 17-28
G.H. BOLT,
P.H. GROENEVELT,
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摘要:
The “non-Darcian” behaviour of water in soils is discussed considering the coupling that can arise between the different transport phenomena. In general, it is shown that there is a reason to expect that a difference in osmotic pressure will arise when solutions flow through porous media, and that due to that difference the resulting flow be related in a non-linear fashion to the applied pressure difference. Several numerical examples are presented illustrating this behaviour.
ISSN:0020-6024
DOI:10.1080/02626666909493716
出版商:Taylor & Francis Group
年代:1969
数据来源: Taylor
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5. |
MILIEUX POREUX NON SATURÉS ET THÉORIE DES MIXTURES |
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International Association of Scientific Hydrology. Bulletin,
Volume 14,
Issue 2,
1969,
Page 29-47
P. GUELIN,
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摘要:
The behaviour of unsaturated porous materials is described according to the procedure of FICK'S mixture theory. Hysteresis is included by use of the VOLTERRA'S integral form or by an approximative method using experimental results. Several mathematical models corresponding to physically significant situations are derived from the theory.
ISSN:0020-6024
DOI:10.1080/02626666909493717
出版商:Taylor & Francis Group
年代:1969
数据来源: Taylor
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6. |
DISPERSION AND REACTION IN UNSATURATED SOILS APPLICATIONS TO TRACERS |
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International Association of Scientific Hydrology. Bulletin,
Volume 14,
Issue 2,
1969,
Page 49-60
D.E. ELRICK,
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摘要:
A summary is presented on the mechanisms of dispersion of miscible contituents in the liquid phase of porous materials. The transport is considered from both a microscopic (within the pore spaces) and macroscopic (an average of a representative number of pores) point-of-view. An attempt has been made to point out some of the problems associated with the use of the physically measurable macroscopic variables when investigating the basically microscopic phenomenon of dispersion. Some simple reactions between soil materials and chemical substances are discussed and some applications to tracer studies are presented.
ISSN:0020-6024
DOI:10.1080/02626666909493718
出版商:Taylor & Francis Group
年代:1969
数据来源: Taylor
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7. |
CONSIDÉRATIONS SUR L'INFLUENCE DE LA PHASE GAZEUSE PIÉGÉE DANS LES MILIEUX POREUX |
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International Association of Scientific Hydrology. Bulletin,
Volume 14,
Issue 2,
1969,
Page 61-66
L.W. DE BACKER,
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摘要:
In porous media, entrapped gas is considered as an important factor reducing the transmissibility of fluids through the medium.
ISSN:0020-6024
DOI:10.1080/02626666909493719
出版商:Taylor & Francis Group
年代:1969
数据来源: Taylor
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8. |
WATER CONTENT MEASUREMENT WITH 60 keV GAMMA RAY ATTENUATION |
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International Association of Scientific Hydrology. Bulletin,
Volume 14,
Issue 2,
1969,
Page 67-78
P.H. GROENEVELT,
J.G. de SWART,
J. CISLER,
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摘要:
The purpose of this paper is to discuss the specific problems dealing with the use of Americium 241 for measuring the water content of soil sample by attenuation of low energy gamma rays. One of the advantages is that the optimum thickness of the soil sample is about 4 to 5 cm. However, one of the difficulties encountered is related to the determination of the absorption coefficient, which is generally lower than the theoretical value.
ISSN:0020-6024
DOI:10.1080/02626666909493720
出版商:Taylor & Francis Group
年代:1969
数据来源: Taylor
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9. |
QUELQUES CONSIDÉRATIONS SUR L'EMPLOI DES TENSIOMÈTRES |
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International Association of Scientific Hydrology. Bulletin,
Volume 14,
Issue 2,
1969,
Page 79-129
L. SORMAIL,
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摘要:
The interpretation of tensiometers measurements requires special knowledge of the mechanics of equilibrium of the tensiometer with its environment. The classical concept of response time τ = (1/K′ S) of the system: porous cup (conductanceK') and manometer (sensitivityS) can be improved by taking into account the elasticity of the tubing. By analogy one can appreciate the role of entrapped air in the circuit. In general, it is possible to theorically observe the response characteristics of the tensiometer by imposing pressure step in the system and by studying the equilibrium response. Such tests showed certain anomalies of behaviour which can be attributed to very small bubbles of air entrapped to the internal wall of the porous cup.
ISSN:0020-6024
DOI:10.1080/02626666909493721
出版商:Taylor & Francis Group
年代:1969
数据来源: Taylor
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10. |
PROBLÈMES POSÉS PAR LA MESURE DE LA PRESSION INTERSTITIELLE DANS LES SOLS |
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International Association of Scientific Hydrology. Bulletin,
Volume 14,
Issue 2,
1969,
Page 95-129
F.A. SOEIRO,
A. DESSAINT,
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摘要:
We first define the interstitial pressure and the suction for sands and clays. Due to differences in behaviour of these two types of soils, the general equations for flow will be different.
ISSN:0020-6024
DOI:10.1080/02626666909493722
出版商:Taylor & Francis Group
年代:1969
数据来源: Taylor
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