This data set is used to define an external force that steers the flow. Otherwise, it can be omitted.

  &External_Force  Force_Option_I_Direction= 0           , Force_Option_J_Direction= 0         , Force_Option_K_Direction= 0 ,
                   Force_Reference_Value_I_Direction= 0.0, Force_Reference_Value_J_Direction= 0, Force_Reference_Value_K_Direction= 0.0 /

• Type : Integer value
• This option selects the type of force on the I-component of the force vector.
  • 0 : the force component is zero
  • 1 : the force component is constant
  • 2 : the force component is time dependent and depends on the mass flowrate (special case used for the simulation of a channel flow with periodical boundary conditions).
  • 3 : the force component is time dependent and depends on both mass flowrate and wall friction (special case used for the simulation of a channel flow with periodical boundary conditions).
• Default value = 0

• Type : Integer value
• This option selects the type of force on the J-component of the force vector (see above).
• Default value = 0

• Type : Integer value
• This option selects the type of force on the J-component of the force vector (see above).
• Default value = 0

• Type : Real value
• Reference value of the force component along the I-direction.
• Default value = 0.0

• Type : Real value
• Reference value of the force component along the J-direction.
• Default value = 0.0

• Type : Real value
• Reference value of the force component along the K-direction.
• Default value = 0.0