Card 9 - ROT_FX Rotational Effects Definition

KODE

KODE is the code KODE = ROT_FX (or 86)

N1

N1 is the ROT_FX card ID. Cards with the same ID reference the same rotational effects definition.

T1 = ROT_FXS

T1 = ROT_FXS (or 121) specifies the type of rotation effects in T2.

• T2 = NEGLECT_ROT neglects wall rotations.
• T2 = CORRECT_ROT corrects for wall rotations.
• T2 = RELTEMP_REF uses relative temperature reference frame.

T1 = SWIRL

T1 = SWIRL (or 125) indicates the type of swirl to be used for total temperature corrections.

• T2 = VELOCITY uses swirl velocity.
• T2 = RATIO uses swirl ratio.
• T2 = DEL_TEMP uses relative temperature difference.

T1 = SWIRL_DEL_TEMP

T1 = SWIRL_DEL_TEMP (or 124) specifies a relative temperature difference for total temperature corrections.

• If the relative temperature difference is constant, then its value is specified in T2.
• If the relative temperature difference is table dependent, then T2 is a table multiplier and T3 has the form Tn, for example, T25 where n is a table number referencing the TABTYPE or FIELDTYPE cards. The dependent variable on the TABTYPE card must be TEMP.
• If the relative temperature difference is calculated using an expression, then T2 is an expression multiplier and T3 has the form En, for example, E25 where n is an expression number referencing the EXPRESSION card.

T1 = SWIRL_RATIO

T1 = SWIRL_RATIO (or 123) specifies a swirl ratio for total temperature corrections.

• If the swirl ratio is constant, then its value is specified in T2.
• If the swirl ratio is table dependent, then T2 is a table multiplier and T3 has the form Tn, for example, T25 where n is a table number referencing the TABTYPE or FIELDTYPE cards. The dependent variable on the TABTYPE card must be NUMBER.
• If the swirl ratio is calculated using an expression, then T2 is an expression multiplier and T3 has the form En, for example, E25 where n is an expression number referencing the EXPRESSION card.

T1 = SWIRL_VELOCITY

T1 = SWIRL_VELOCITY (or 122) specifies a swirl velocity for total temperature corrections.

• If the swirl velocity is constant, then its value is specified in T2.
• If the swirl velocity is table dependent, then T2 is a table multiplier and T3 has the form Tn, for example, T25 where n is a table number referencing the TABTYPE or FIELDTYPE cards. The dependent variable on the TABTYPE card must be VELOC.
• If the swirl velocity is calculated using an expression, then T2 is an expression multiplier and T3 has the form En, for example, E25 where n is an expression number referencing the EXPRESSION card.

T1 = FLOW_ROTATION_STATIONARY_STRUCTURES

T1 = FLOW_ROTATION_STATIONARY_STRUCTURES (or 6) specifies how the rotation speed value for the case of a fluid adjacent to a stationary wall to account for swirl velocity in the fluid is defined in T2.

• T2 = ROT_SPEED specifies rotation speed value.
• T2 = AUTOMATIC rotation speed value computed by the thermal solver. The thermal solver finds the maximum rotation velocity among rotation wall elements connected to the stationary wall through the fluid elements.

T1 = ROT_SPEED

T1 = ROT_SPEED (or 7) specifies the rotation speed value in T2.

• If the rotation speed value is constant, then its value is specified in T2.
• If the rotation speed value is table dependent, then T2 is a table multiplier and T3 has the form Tn, for example, T25 where n is a table number referencing the TABTYPE or FIELDTYPE cards. The dependent variable on the TABTYPE card must be NUMBER.
• If the rotation speed value is calculated using an expression, then T2 is an expression multiplier and T3 has the form En, for example, E25 where n is an expression number referencing the EXPRESSION card.

Code example

$ ------------------
$ Rotational effects
$ ------------------
ROT_FX 1 ROT_FXS RELTEMP_REF
ROT_FX 1 SWIRL VELOCITY
ROT_FX 1 SWIRL_VELOCITY 2.000000E+04