Questão de Fenômenos de Transporte: Mecânica dos Fluidos, Transferência de Calor e Transferência de Massa
What is the principle of conservation of mass in fluid mechanics?
A
It is the principle that states that the velocity of a fluid is constant throughout a tube.
B
It is the principle that states that the properties and characteristic quantities of a non-permanent flow are constant over time.
C
It is the principle that states that transient flows have an initial phase, a permanent flow, and that due to an acceleration of the velocity, they assume a new permanent situation.
D
It is the principle that states that periodic flows follow a continuous temporal variation over time.
E
It is the principle that states that flows occur with a random variation of velocity over time.
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