Card 9 - TSTREAM Thermal Stream Definition

This optional card specifies the parameters and options for defining thermal streams.

Parameters: KODE, N1, T1, T2, T3

KODE

KODE is the code TSTREAM (or 88)

N1

N1 is the TSTREAM card ID. Cards with the same ID reference the same Thermal Stream.

T1 = AXIAL

T1 = AXIAL (or 23) references the axial component of the thermal stream on faces with cylindrical components. The axial component is specified in T2.

T1 = CIRCUMFERENTIAL

T1 = CIRCUMFERENTIAL (or 22) references the circumferential component of the thermal stream on faces with cylindrical components. The circumferential component is specified in T2.

T1 = CONNECT

T1 = CONNECT (or 33) indicates the parameters that are calculated from connected streams in T2.

  • T2 = MASS indicates the mass flow is computed.
  • T2 = TEMP indicates the thermal stream inlet temperature is computed.
  • T2 = REVMASS indicates the reverse mass flow is computed.
  • T2 = REVTEMP indicates the thermal stream reverse inlet temperature is computed.

T1 = CSYS

T1 = CSYS (or 18) specifies the ID of the referenced SYSCOOR card (coordinate system) in T2.

T1 = DIRECTION

T1 = DIRECTION (or 2) specifies a direction for the stream elements on faces. The X, Y, and Z components of the vector representing the stream direction are specified in T2, T3, and T4, respectively.

T1 = ELINLET or ELINLETA

T1 = ELINLET or ELINLETA (or 16) specifies the ID of the first element of the stream on edges in T2. If the stream is two-sided, then T2 is the first element ID in the first side of the stream.

T1 = ELINLETB

T1 = ELINLETB (or 17) is similar to ELINLETA specifies the ID of the first element in the second side of a two-sided stream on edges.

T1 = FLOWREVERSE

T1 = FLOWREVERSE (or 9) indicates that flow reversal can be activated. If the original mass flow becomes negative, then the flow reversal conditions are activated.

  • T2 = MASSFLOW: If the massflow of the flow reversal conditions is constant, then its value is specified in T3.
  • T2 = TINLET: If the inlet temperature of the flow reversal conditions is constant, then its value is specified in T3.
  • If it is table dependent, then T3 is a table multiplier and T4 has the form Tn (e.g., T25) where n is a table number referencing TABTYPE or FIELDTYPE cards.
  • The dependent variable for TINLET on the TABTYPE card must be TEMP. The dependent variable for MASSFLOW on the TABTYPE card must be MASSFL.
  • If the inlet temperature or massflow of the flow reversal conditions is calculated using an expression, then T2 is an expression multiplier and T3 has the form En (e.g., E25) where n is an expression number referencing the EXPRESSION card.

T1 = HEATPICKUP or HEATPICKUPA or HEATPICKUPB

T1 = HEATPICKUP or HEATPICKUPA or HEATPICKUPB (or 14, 15) specifies additional heat pickup in the fluid flowing in the stream, as a heat power per unit area of the thermal stream selection. HEATPICKUPA is similar to HEATPICKUP, HEATPICKUPA, and HEATPICKUPB specify the heat pickup for the first and second side of the two-sided thermal stream, respectively.

  • If the heat pickup is constant, then its value is specified in T2.
  • If the heat pickup is table dependent, then T2 is a table multiplier and T3 has the form Tn (e.g., T25) where n is a table number referencing TABTYPE or FIELDTYPE cards.
  • The dependent variable on the TABTYPE card must be QNODE.
  • If the thermal stream is two-sided, then HEATPICKUP specifies the same heat pickup for both sides of the stream.
  • If the heat pickup is calculated using an expression, then T2 is an expression multiplier and T3 has the form En (e.g., E25) where n is an expression number referencing the EXPRESSION card.

T1 = HTC or HTCA or HTCB

T1 = HTC or HTCA or HTCB (or 7, 8) specifies a heat transfer coefficient connecting the selected elements with the stream. If the heat transfer coefficient is constant, then its value is specified in T2. HTCA is similar to HTC. HTCA and HTCB specify the heat transfer coefficient for the first and second side of the two-sided thermal stream, respectively.

  • If the heat transfer coefficient is table dependent, then T2 is a table multiplier and T3 has the form Tn (e.g., T25) where n is a table number referencing TABTYPE or FIELDTYPE cards.
  • The dependent variable on the TABTYPE card must be COND.
  • If the thermal stream is two-sided, then HTC specifies the same heat transfer coefficient for both sides of the stream.
  • If the heat transfer coefficient is calculated using an expression, then T2 is an expression multiplier and T3 has the form En (e.g., E25) where n is an expression number referencing the EXPRESSION card.

T1 = LABELLIST or LABELLISTA

T1 = LABELLIST or LABELLISTA (or 34) indicates in T2 the ID of the LABELLIST card containing ordered element selection for the side of the stream.

If the stream is two-sided, then T2 is the ID of the LABELLIST card containing ordered elements selection for the first side of the stream.

T1 = LABELLISTB

T1 = LABELLISTB (or 35) indicates in T2 the ID of the LABELLIST card containing ordered elements selection for the second side of the two-sided stream on edges.

T1 = MASSFLOW

T1 = MASSFLOW (or 4) specifies a massflow for the thermal stream.

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

T1 = MAT_LIST

T1 = MAT_LIST (or 21) specifies additional fluid materials. The ID of the MATLIST card, which lists these additional fluid materials, is specified in T2.

T1 = MATERIAL

T1 = MATERIAL (or 3) specifies the material ID of the primary fluid material in the thermal stream in T2.

T1 = NAME

T1 = NAME (or 24) specifies the load name in T2.

T1 = NDINLET or NDINLETA

T1 = NDINLET or NDINLETA (or 31) indicates the first node for one-sided streams on edges or indicates the first node on the side A for two-sided streams on edges.

T1 = NDINLETB

T1 = NDINLETB (or 32) indicates the first node on the side B for two-sided streams on edges.

T1 = PRESSURE

T1 = PRESSURE (or 6) specifies a pressure for the thermal stream. If the pressure is constant, then its value is specified in T2.

  • If the pressure is table dependent, then T2 is a table multiplier and T3 has the form Tn (e.g., T25) where n is a table number referencing TABTYPE or FIELDTYPE cards.
  • The dependent variable on the TABTYPE card must be PTOTAL.
  • If the pressure is calculated using an expression, then T2 is an expression multiplier and T3 has the form En (e.g., E25) where n is an expression number referencing the EXPRESSION card.

T1 = OVERRIDE or OVERRIDEA

T1 = OVERRIDE or OVERRIDEA (or 29) specifies an area override. This input overrides the convective area.

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

T1 = OVERRIDEB

T1 = OVERRIDEB (or 30) is similar to OVERRIDE. It references the area override for the second side of a two-sided stream.

T1 = RADIAL

T1 = RADIAL (or 20) references the radial component of the thermal stream on faces with cylindrical components. The radial component is specified in T2.

T1 = ROT_FX

T1 = ROT_FX (or 12) specifies that the stream temperatures are corrected for rotational effects. The ID of the referenced ROT_FX cards is specified in T2. If the thermal stream is two-sided, then ROT_FX references the same rotational effects for both sides of the stream.

T1 = ROT_FX or AROT_FXB

T1 = ROT_FXB (or 13) is similar to ROT_FX. It references the rotational effects for the second side of the two-sided thermal stream.

T1 = SELECTION

T1 = SELECTION (or 1) specifies that the thermal stream is applied to a selection of elements. T2 is a group name or an element number.

If the stream is two-sided, T3 is a group name or an element number for the second side.

T1 = TINLET

T1 = TINLET (or 5) specifies an inlet temperature for the thermal stream. If the inlet temperature is constant, then its value is specified in T2.

  • If the temperature is table dependent, then T2 is a table multiplier and T3 has the form Tn (e.g., T25) where n is a table number referencing TABTYPE or FIELDTYPE cards.
  • The dependent variable on the TABTYPE card must be TEMP.
  • If the inlet temperature is calculated using an expression, then T2 is an expression multiplier and T3 has the form En (e.g., E25) where n is an expression number referencing the EXPRESSION card.

T1 = THICK or THICKA

T1 = THICK or THICKA (or 25) specifies the area for internal edges. This input is used to compute the convective area when the Thermal Stream is applied to internal edges.

T2 = SUB If thicknesses are subtracted.

T2 = ADD If thicknesses are added..

T1 = THICKB

T1 = THICKB (or 26) is similar to THICK. It references the thickness treatment for the second side of a two-sided stream.

Thermal steam face-to-edge

In the following example, the face-to-edge thermal stream is a special combination of a two-sided stream, where side A is an edge and side B is a face.

  • ELINLETA and NDINLETA are specified for the side A.
  • DIRECTION is specified for the side B.

Code example

TSTREAM 36 NAME "Stream 36"
TSTREAM 36 SELECTION "Stream 36" "Stream 36 1"
LABELLIST 39 60773 60781 1
TSTREAM 36 LABELLISTA 39
TSTREAM 36 DIRECTION 2.540000E+01 0.000000E+00 0.000000E+00
TSTREAM 36 ELINLETA 60773
TSTREAM 36 NDINLETA 19224