Balance of momentum
Fluid mechanical basic equations
Article REF: BE8153 V2
Balance of momentum
Fluid mechanical basic equations

Author : André LALLEMAND

Publication date: July 10, 2015, Review date: January 4, 2020 | Lire en français

Logo Techniques de l'Ingenieur You do not have access to this resource.
Request your free trial access! Free trial

Already subscribed?

3. Balance of momentum

The quantity of motionQM attached to a material system can only vary over time (in the sense of creation or destruction) if the system is subject to a non-zero force torsor. Thus, noting that the quantity of motion attached to the unit volume of fluid is ρv, the balance equation (6) attached to this vector quantity is written :

D(QM)dt=∫V∂ρ
You do not have access to this resource.
Logo Techniques de l'Ingenieur

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource. Click here to request your free trial access!

Already subscribed?

Article included in this offer

"Physics of energy"

( 72 articles )

Complete knowledge base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

View offer details
Contact us
Contact our team FAQ