Question

Hello! I have some questions related to Ansys Fluent, I have
just started learning about it:

1. What is multiphase? When do we use it or turn it on?

2. When do we need to turn the energy on?

3. If I discuss about the air flow in the channel flow, should I turn on the gravity of the earth? g=9.81m/s2

Thank you in advance! I will thumb you up!

Answer #1

**1.**

**●** Understanding **multiphase**
phenomena can be important for **optimizing**
**processes** or **products**. Multiphase
flow describe phase definition and flow classification.

It should turn on for flows with a high volume fraction of particles, where particle-particle interaction is important.

**2.**

**●** When we want to analyze the
**liquids** the energy eqation should be on and
Pressure work and kinetic **energy** are accounted in
that comdition.

**3.**

● Yes you must turn on the gravity if you analysing any fluid (Gas,water,oil) in open channel flow.

Thank you.

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