2. Hydraulics
2.1 Some physical quantities useful in hydraulics
Density: the ratio between a mass m (in kg) of homogeneous matter and the volume V (in m 3 ) occupied by this mass in kg · m –3 : ρ = m/V. Its inverse, called mass volume, is sometimes used. It can be seen that the densities of liquids are around 1,000 times higher than those of gases (liquids are in a more condensed form than gases). When a fluid maintains a constant density, it is said to be in incompressible flow. Otherwise, the flow is said to be compressible. Liquids can largely be considered to be incompressible.
Density: this is the ratio between the mass of a certain volume of a...
The Ultimate Scientific and Technical Reference
This article is included in
Hydraulic, aerodynamic and thermal machines
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Hydraulics
Water diagrams
Bibliography
Standardization
- Composants de tuyauterie. Termes et définitions - NF E29-011 - 07-06
- Tuyauteries DN-ISOPN. Définitions et gammes normalisées - NF EN ISO 6708 - 12-95
- Composants de réseaux de tuyauteries. Définition et sélection des DN (diamètre nominal). Indice de classement E 29-001 - EN ISO 6708 - 12-95
- Brides et leurs assemblages. Composants de réseaux de tuyauteries. Définition et sélection des PN. Indice de classement...
Websites
http://www.spiraxsarco.com/fr/global/corporate_search.asp
http://www.swagelok.com.fr/vannes/selectionnez_la_bonne_vanne_votre_application.htm
...
The Ultimate Scientific and Technical Reference
