Nueva Versión EFD.Lab 6.0, el programa de Análisis de Fluidos para cualquier CAD 3D

EFD.Lab V6.0
Análisis de Fluidos para cualquier Sistema CAD 3D
Lista de Mejoras y Nuevas Capacidades
(Septiembre-2005)

EFD.Lab v6

Physical Features and Technology

	Multiple rotating frames. It is now possible to simulate multiple rotating equipments. Each rotating equipment is calculated in the local rotating reference frame, exchanging the data with the stationary reference frame at the rotating region's boundary. The rotating region must be applied to the component that is a body of revolution so that the rotating equipment is fully enclosed within this region and the axis of revolution coincides with the rotation axis.
	Water vapor condensation. You can specify that the project’s gaseous fluid (i.e. gas) includes a water vapor (i.e. steam) as its component or consists of it only (a new Steam substance type has been added to the Engineering Database). EFD.Lab predicts an equilibrium volume condensation of this water vapor into water. As a result of this prediction, in each point of the fluid region, in accordance with the fluid’s local temperature and pressure and, if a multi-component fluid is considered, the water vapor’s local fraction, the condensed water vapor’s local mass fraction in the local total mass of the water vapor and the condensed water vapor is determined. In addition, the corresponding changes of the fluid’s temperature, density, enthalpy, specific heat, and sonic velocity are determined and taken into account when determining the fluid’s properties.
	Contact resistance. If you are solving a problem that uses the Heat conduction in solids option, you can specify the thermal contact resistance at the solid/solid and the solid/fluid boundaries. Thermal contact resistance can be specified either directly by inputting its value or by inputting the thickness and material of the contact layer.
	Heat sink simulation. The Heat sink simulation feature allows you to simulate a heat sink of a complex shape using a simple parallelepiped. It is convenient for analyzing fluid flow and heat transfer in electronics enclosures containing many components. By replacing a complex shape heat sink with a heat sink simulation, you can reduce the computational time for such problems.
	Fluid subdomains. You can specify a selected closed fluid region as a Fluid subdomain. Several fluid subdomains with their own fluid parameters, including the fluid type and/or selected fluids, can be specified; the fluid flow is calculated separately for each fluid subdomain. This allows you to analyze flow of fluids of different types (Gases/Steam, Liquids, Non-Newtonian liquids, Compressible liquids) in the same project.
	Slip condition. A Navier slip condition can be applied for all model walls in case of the analysis involving only non-Newtonian liquids.
	Wall simultaneous translation and rotation. You can simulate translation motion of the wall along an axis and simultaneous rotation of this wall around the same axis. This is only possible if the wall doesn't change its geometry with respect to the surrounding fluid (for example, the surface of a cylinder).

General and Usability Capabilities

Solver

Close EFD.Lab when solver starts. If you have chosen not to run the solver in the Current Session of EFD.Lab, but on another computer in the network or as a separate process on the local computer, you can select the Close application option to close EFD.Lab after the solver starts, resulting in more memory available for the calculation. The Close application option is available in both the Run and Batch Run dialog boxes.

Mesher

The step of preparing data for calculation takes less CPU time in solver.
If you run the calculation again without changing the model geometry, the mesher will go through the step of preparing mesh much faster.
Creating the postprocessor features such as Cut Plots, Surface Plots, etc. takes less CPU time.

Automatic settings for local initial mesh. You can now specify the automatic settings (minimum gap size, wall thickness, level of mesh) for the local initial mesh in the same manner as for the initial mesh in the entire computational domain. This allows you to set main parameters of the local initial mesh quickly and then, if you need, make adjustments using various options available in the Local Initial Mesh dialog box.

Intermediate results are saved for further use. The mesher now saves intermediate results of its work during the mesh generation (including the results of geometry processing and Boolean operations), making these data available for the solver and postprocessor. This leads to the following improvements:

Pre – Processor

	Improved Wizard and General Settings. The new Wizard has less steps and now you can use the Navigator in addition to the standard Next and Back buttons. The Navigator provides quick access to dialog pages of the Wizard. The General Settings dialog box has now the same look and style like the Wizard.
	Improved and customizable Analysis Tree. The EFD.Lab Analysis Tree was improved to provide the better representation of the user specified input data as well as the analysis results. The Analysis Tree is fully customizable now; you can choose which features in both the Input Data and Results folders will be visible by default and which will be hidden.
	By default, the Input Data folder now contains only the most commonly used features and features that are specific for the selected physical features and type of analysis. All features in the Results folder are visible and available by default. Right–click on the project’s name in the EFD.Lab Analysis Tree, select Customize Tree and check the features you want to be available from the Analysis Tree every time you work with EFD.Lab. Please note that only features that are appropriate for the selected analysis type and physical features will be displayed.
	Templates for goals names. You can specify a template for the names of created goals. In the template you can combine the text you enter with the pre-defined standard elements, which are replaced by the corresponding information when goals are created. These standard elements are: <Parameter>, which is replaced by the name of the goal parameter (e.g. Average Pressure or Mass Flow Rate), and <Number>, which is replaced by a sequential number of the goal.
	Easier definition of Equation Goals. Modified interface provides a more convenient way to specify an Equation Goals: the Undo Add button removes parameters from the expression one by one, the Clear All button quickly clears the expression box. One click is now enough to select a goal.
	Environment pressure BC. You can specify the Environment pressure boundary condition, which is considered as a total pressure for incoming flows and as a static pressure for outgoing flows.
	Heat sources at solid-solid interface. You can now specify Surface source on the model’s faces which have no contact with fluid, but only with another solid component. This allows you to specify surface heat sources at boundaries between solids, i.e. at a solid-solid interface.
	Use materials imported from model. You can automatically create material conditions with the solid materials imported from the model.

Co – processor

	Indication of the total time remaining. Estimation of the total time remaining for the calculation to be completed at any given instant is now displayed in the Info window of the solver monitor.
	Number of iteration is added to event information in Log.

Post – processor

	Copy features among the projects. You can copy postprocessor features among the EFD.Lab projects.
	Automatic loading of results. Results can be loaded automatically after the calculation is finished by selecting the Load Results option in the Run dialog box.
	API for results files processing. The API (Application Programming Interface) providing access to EFD.Lab results files from the user’s applications is supplied with the EFD.Lab. API components are available in the <install_dir\api\bin> folder and the sample Visual Basic and Visual C++ projects with programming examples are available in the <install_dir\api\NIKAPISample> folder.
	New vector parameters: heat flux vectors and vorticity vector. You can plot heat flux vectors in solids as well as vector of vorticity in fluids in Cut Plots, Surface Plots and 3D-Profile plots.
	Animation of 3D-Profile Plots. You can now animate 3D-Profile Plots along the direction orthogonal to the reference plane.
	Animated arrows, spheres and pipes along Flow Trajectories and Particles Trajectories. Animated arrows and spheres now can be used to visualize Flow Trajectories and Particles Trajectories.
	Shaded features. A new option allows enabling shaded view to get more realistic display of 3D objects (Isosurfaces, 3D-Profile plots as well as arrows, spheres and pipes used to visualize Flow Trajectories and Particles Trajectories). The lighting properties are acquired from the SolidWorks model's lighting.
	Manual specification of number of color bar scale divisions. You can manually specify the number of divisions of the color bar scale.
	Interactive color bar settings. Now you can adjust min/max values for the color bar without opening the View Settings dialog box by clicking the value in the graphics area.
	Save geometry in VRML. You can save the model’s geometry together with the results in the VRML format.
	"Save as" option for Isosurfaces. Now the Isosurfaces can be saved to a file using the BMP, JPEG or VRML format.
	Parameters in rotating reference frame. You can visualize parameters taken in the rotating frame of reference. Such parameters have the RRF abbreviation in their names.
	Preview mode for Isosurfaces and 3D-Profile plots. Now preview mode is available for Isosurface and 3D-Profile Plot.
	Insert pictures in JPEG format to report. Now pictures in the JPEG format can be inserted to the report. This results in reducing the size of the report’s file.
	Support more features for batch results processing. Surface Parameters, Point Parameters and Volume Parameters can now be automatically created and saved as an Excel workbook.

Installation and Licensing

Possibility to run calculations as a separate process for users of Individual installation. Users of Individual installation can now run solver as a separate process on the end user’s computer. Running the solver as a separate process allows the solver to use the total 2Gb of memory available for the single process. If run as a part of the CAD application (the usual way) the total 2Gb are shared with the CAD application so the more memory requested by the CAD application the less memory is available for the solver.