### 3.2.10. K (Turbulent Kinetic Energy)

#### 3.2.10.1. Automatic Values

The default turbulent kinetic energy is calculated as:

| (3–1)

where:

is the default turbulent intensity of 5%.

is a minimum clipping velocity of 0.01 m/s to avoid a result of zero for the turbulent kinetic energy when an initial velocity value of zero exists.

is the velocity initial guess.

is the product of the simulation average length scale and the rotation rate. This term is designed to produce a suitable velocity scale for rotating domains.

#### 3.2.10.2. Recommended Values

Unless you have information about the turbulent kinetic energy for your application, use the `Automatic` initial guess.

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