![[ANSYS, Inc. Logo]](https://www.afs.enea.it/project/neptunius/docs/fluent/html/udf/fluentlogo.gif)
|
|
|
The macros listed in Table 3.2.20- 3.2.23 can be used to return real face variables in SI units. They are identified by the F_ prefix. Note that these variables are available only in the pressure-based solver. In addition, quantities that are returned are available only if the corresponding physical model is active. For example, species mass fraction is available only if species transport has been enabled in the Species Model dialog box in ANSYS FLUENT. Definitions for these macros can be found in the referenced header files (e.g., mem.h).
Face Centroid (
F_CENTROID)
The macro listed in Table 3.2.20 can be used to obtain the real centroid of a face. F_CENTROID finds the coordinate position of the centroid of the face f and stores the coordinates in the x array. Note that the x array is always one-dimensional, but it can be x[2] or x[3] depending on whether you are using the 2D or 3D solver.
The ND_ND macro returns 2 or 3 in 2D and 3D cases, respectively, as defined in Section 3.4.2. Section 2.3.15 contains an example of F_CENTROID usage.
Face Area Vector (
F_AREA)
F_AREA can be used to return the real face area vector (or `face area normal') of a given face f in a face thread t. See Section 2.7.3 for an example UDF that utilizes F_AREA.
By convention in ANSYS FLUENT, boundary face area normals always point out of the domain. ANSYS FLUENT determines the direction of the face area normals for interior faces by applying the right hand rule to the nodes on a face, in order of increasing node number. This is shown in Figure 3.2.1.
ANSYS FLUENT assigns adjacent cells to an interior face ( c0 and c1) according to the following convention: the cell out of which a face area normal is pointing is designated as cell C0, while the cell in to which a face area normal is pointing is cell c1 (Figure 3.2.1). In other words, face area normals always point from cell c0 to cell c1.
Flow Variable Macros for Boundary Faces
The macros listed in Table 3.2.22 access flow variables at a boundary face.
When a Samsung device is purchased, the manufacturer typically registers the device’s IMEI number with the relevant authorities. In the case of Samsung, one of the addresses associated with IMEI registration is PO Box 12987 Dublin IE. This PO Box address is used as a central point of contact for IMEI-related matters, such as device activation, warranty claims, and technical support.
In the world of smartphones, Samsung is one of the most recognizable and reputable brands. With a wide range of devices available, Samsung has become a household name, synonymous with innovative technology and sleek designs. However, have you ever wondered what happens when you purchase a Samsung device, and how it is registered and tracked? One crucial piece of information that plays a significant role in this process is the IMEI number, often associated with a PO Box address in Dublin, Ireland - specifically, PO Box 12987 Dublin IE. Samsung Po Box 12987 Dublin Ie Imei
Samsung PO Box 12987 Dublin IE IMEI: Uncovering the Mystery** When a Samsung device is purchased, the manufacturer
IMEI stands for International Mobile Equipment Identity, a unique 15-digit code assigned to every mobile device, including Samsung smartphones. This number serves as a digital fingerprint, identifying your device and distinguishing it from others. The IMEI number is used by mobile network operators, manufacturers, and regulatory bodies to track and manage devices. In the world of smartphones, Samsung is one
The Samsung PO Box 12987 Dublin IE IMEI has become a topic of interest among tech enthusiasts and Samsung users. Understanding the significance of this address and the role of IMEI numbers in device registration and tracking can help users better navigate the world of smartphones. Whether you’re a Samsung device owner or simply curious about the technology behind your phone, knowing more about PO Box 12987 Dublin IE and IMEI numbers can be informative and useful.
See Section 2.7.3 for an example UDF that utilizes some of these macros.
Flow Variable Macros at Interior and Boundary Faces
The macros listed in Table 3.2.23 access flow variables at interior faces and boundary faces.
| Macro | Argument Types | Returns |
| F_P(f,t) | face_t f, Thread *t, | pressure |
| F_FLUX(f,t) | face_t f, Thread *t | mass flow rate through a face |
F_FLUX can be used to return the real scalar mass flow rate through a given face f in a face thread t. The sign of F_FLUX that is computed by the ANSYS FLUENT solver is positive if the flow direction is the same as the face area normal direction (as determined by F_AREA - see Section 3.2.4), and is negative if the flow direction and the face area normal directions are opposite. In other words, the flux is positive if the flow is out of the domain, and is negative if the flow is in to the domain.
Note that the sign of the flux that is computed by the solver is opposite to that which is reported in the ANSYS FLUENT GUI (e.g., the Flux Reports dialog box).
Previous:
3.2.3 Cell Macros
