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For Velocity field specify that the velocity at the boundary is equal to a given j0 (SI unit: m/s) and enter the components in the matrix:
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The Suppress backflow check box is selected by default. This option adjusts the inlet pressure, , locally in order to reduce the amount of fluid exiting the domain through the boundary. If suppress backflow is deselected, the inlet boundary can become an outlet depending on the pressure field in the rest of the domain.
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Flow direction controls in which direction the fluid enters the domain.
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For Normal flow (the default) it prescribes zero tangential velocity component.
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For User defined define an Inflow velocity direction, dj (dimensionless). The magnitude of dj does not matter, only the direction. dj must point into the domain.
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