In this blog, we describe Solver Task Page in ANSYS Fluent software. We explain the Type (Pressure and Density Based, and related algorithms), Velocity Formulation (Absolute, Relative), and Time (Steady and Transient). To enter this section, follow the path below:…
In this video, we first explain the Navier-Stokes equations and definition of CFD then the steps of solving a problem by computational fluid dynamics by ANSYS Fluent software (Pre-Processing, processing, and post-processing). Navier-Stokes equations The final form of these equations…
Y-Plus Application Introduction The dimensionless variable Y-plus represents the distance from the wall to the first grid cell's center. Also, Y-plus is a distance with no dimensions. In other words, Y-plus renders the vertical space between the element's center and…
What is Meshing in ANSYS? Meshing means converting the computational domain to smaller subdomains to solve momentum, turbulence, and energy equations and finally obtain results for all levels of the simulated model. Introduction It is critical to creating a high-quality…
Optimization process in ANSYS- in simple words This article will discuss the optimization process and explain the related terminologies such as DOE, RSM, CCD, etc. Using an example, we will further introduce the mentioned methods and options. The first step…
Response Surface Results After completing the process of forming the required response levels based on the appropriate model, the results related to the response levels are presented in different formats: Response points Min-max search Charts; Including: Two-dimensional standard, two-dimensional pieces,…
Introducing Goodness of Fit Table and Chart At the end of the response level creation process, a table is activated by ANSYS Workbench software that provides the quality criteria for the response levels. These criteria examine the quality of the…
Introducing the Standard Full 2nd Order Polynomial Model The standard full 2nd order polynomials are the starting point for many design points. This model is based on a modified quadratic formulation; thus, each output parameter or variable is a quadratic…
Define the Concept of Response Level Response surfaces are functions with different natures that can define any of the parameters or output variables in terms of input parameters or variables. In other words, response surfaces can obtain approximate values of…
Graph Display of Design Points These graphs (a graph of design points) represent the representation form of the values defined for each input parameter, including the parallel representation of parameters (parameters parallel) and the display of design points with each…
Introducing Box-Behnken design or BBD The Bancon Box Design (BBD) model has three levels for dividing design points related to input parameters or factors. Three levels include -1, 0, +1, where levels +1 and -1 are equivalent to the maximum…
The Concept of Leverage The leverage value indicates the opportunity in which the sample points exert abnormal effects on the output of the solution process. For example, suppose the defined sample point was too large for one input parameter compared…
The Concept of Orthogonality Orthogonality is the degree to which the main effects (i.e., the direct and independent development of an input parameter on the output parameter) and the interaction (i.e., the simultaneous effects of two or more input parameters…
DOE: The Concept of The Regression Equation The regression model is a type of statistical model based on which the value of a variable can be estimated based on changes in one or more input parameters; This means that the…
Central Composite Design or CCD The Central Composite Design (CCD) model has five levels for dividing different modes of input factors or parameters. The five levels include -𝛂, -1, 0, +1, + 𝛂, where level + 𝛂 and -𝛂 are…
Design of Experiment The experiment design is a set of actions performed using process modeling and related variables, leading to increased production efficiency. Different parameters that affect a particular process's outcome are analyzed to obtain the best possible values to…
Evaporation Droplet This section will investigate the evaporation process modeling in Ansys Fluent software. Two main methods will be discussed separately. Droplet evaporation & Multi-component evaporation. Here we will investigate the droplet evaporation. The evaporation process should be studied from…
Bosch Common Rail Injector Introduction and Purpose of the Case Study The Bosch fuel injection system delivers the metered quantity at high pressure to mix with compressed air inside the combustion chamber for efficient combustion. The Bosch Common Rail Fuel…
Discrete Phase Model Assumptions Part1 (physical injection model, drag law) There are some assumptions in the DPM model: The model is simulated by solving transport equations for the continuous phase and discrete second phase in a Lagrangian frame of reference.…
DPM Spray Introduction In this article, the types of injections in Fluent software are given, and each one is explained. To simulate such problems, which usually have solid and gas particles or liquid and gas particles as input simultaneously, we…
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