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Features

SC/Tetra is a general purpose thermo-fluid analysis (CFD) software utilizing hybrid mesh to carry out the best representation of the surface geometry along with high precision. Its features include automatic detailed mesh generation system, high speed computing (HPC), low memory (RAM) usage, and importantly user-friendly graphic user interface (GUI) throughout the software operation.
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Product Guide Download

Download a pdf brochure on thermo-fluid analysis software developed and provided by Software Cradle.
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(PDF: 3.20 Mb)

Program Structure

CAD Modification

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When CAD data assigned to be simulated has encountered a problem, the data can be modified inside Preprocessor of SC/Tetra. Boundary conditions can be set depending on thepart  names and color data set from the CAD software. When some areas including surfaces, or full part are absent in the model, shapes such as surfaces, cuboids and cylinders can be created within SC/Tetra.

Mesh-adaptation analysis

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This function allows mesh to be automatically refined where there are great differences in flow or heat in a steady-state analysis. After the calculation in Solver is accomplished, Preprocessor automatically relaunches and executes gridding and meshing depending on the previous simulation result. By setting the target number of mesh elements, coarse mesh will be created first and the mesh is automatically refined to be the right fit for the calculation. The function is useful for an analysis of flows in a complex model with a intricated shape.

Discontinuous mesh

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Simulation with Objects in motion can be calculated with SC/Tetra: Rotation such as a rotating fan, and translation such as automobiles passing each other. The calculation precision of each element connections has been largely improved by revising the internal solver algorithm. For the HPC edition of Solver, memory usage efficiency has also been enhanced, which is expected to carry out substantial imoacts in a multi-core calculation of large-scale model.

Overset mesh

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Region in a free motions, that cannot be simulated using existing functions such as stretching or rotating parts, can now be analyzed by intersecting mesh elements for both stationary and moving mesh regions. This function allows an overlap of multiple moving regions, a contact between part models, and a 6-degree-of-freedom (6DOF) movements of rigid parts. This is beneficial to simulate opening and closing phenomenas of a pump valve of an engine port or even a gear pump where gears interact with each other.

Free surface (steady-state / transient)

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The shape of an interface between both a gas and a liquid can be observed. Calculations by VOF method ( Currentl, there is a new method called "FIRM") are both quick and precise, and features including translating or rotating boundary, overset mesh, and even particle tracking can be utilized simultaneously. Due to a  phenomenon where the each phase interface becomes persistant can be simulated in a steady-state calculation, the result can be acquired in a shorter period of time than previous versions.
* Only scFLOW supports FIRM.

6-degree-of-freedom motion (6DOF)

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Passive motions such as translation and rotation of a rigid part caused from a fluid force can be simulated. With this function, the user can observe a ball valve with focus of the elasticity of the spring in 1-Dimension translation, and even paper airplane with consideration of 6-degree-of-freedom (6DOF) rigid-body movements including 3-Dimension translation + 3-Dimensions rotation simultaneously. Additionally, this feature is also utilized to analyses of operating check valves, wind turbine generators, and rotating blades of wave power generators.

Cavitation

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This function allows simulation of a vaporization behaviour called cavitation, which is occured at an area where liquid pressure becomes less than in the surrounding environment, such as with a propeller rotating at a Full speed underwater. The phenomena of cavitation can be simulated by applying the cavitation model from SC/Tetra depending on the pressure values. The software also allows user to identify problems occurred by cavitation such as erosion.

Fluid-structure interaction

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This feature is utilized for two-way FSI (fluid-structure interaction) along with structural analysis software. With this feature, software does not only support rigid parts, but also allow elastic bodies to be simulated. Object deformation occured from a fluid force and the change of fluid occred from the object deformation can be calculated.

Compressible fluid

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The software can simulate behavior such as supersonic flow and substantial expansion/contraction of volume. For a compressible fluid, together the pressure-based and the density-based CFD Solvers can be utilized simultaneously. The density-based Solver balance the calculation even with high Mach number. You can also choose either Solver depending on the simulating target and behavior.

Aerodynamic noise analysis

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Sound occurred from pressure vibration of a fluid, such as wind noise, and sound occurred from resonance can be simulated. The calculation can be analyzed previsely by applying LES (Large-Eddy Simulation) and the weak compressible flow model. The frequency of aerodynamic sound can also be observed using the method of Fast Fourier Transform (FFT) from SC/Tetra.

Dispersed multi-phase flow

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This function can predict flows containing various fluid features such as bubbles, droplets, or particles (dispersed phase), which are tough to be simulated using free surface function. This function is a multi-fluid model that can simulate volume fraction velocity distribution of each particular phase by solving the governing equation within the assumption that the scattered phase is in a continuous phase of fluid. The function is very beneficial to simulate the bubble jet impact and aeration tanks.

Particle tracking

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Particle tracking function allows simulating phenomena of particles in fluid-flow. When simulating small particles that follows the fluids motions (such as evaporation and smoke), marker particle function can be utilized to evaluate particles in flow that vary over time, which assumes that particle motions is in unity with fluid velocity.

Humidity dew condensation

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The amount of dew condensation on an object surface can be calculated from the surface temperature and water vapor in the air. You can output the amount of dew condensation per unit time in a steady-state analysis and the accumulated dew condensation in a transient analysis. Evaporation from a surface where dew condensation occurs can be calculated simultaneously, and this is useful for an analysis of a windshield defroster.

Liquid film model

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The liquid film model is an extended function of the particle tracking function. By using the model, you the user can simulate the phenomenon that liquid particles change to a liquid film (water on a wall) when they reaching on the a wall. A liquid film on a wall flows with the influence of gravity and a gas-phase flowdown depending on an angle of the wall and collects in at a certain position. The analysis results are output as the thickness of a liquid film.

Thermoregulation-model (JOS)

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Combination use of the thermoregulation-model (JOS) and a fluid analysis enables analyses of the surface temperature of a human body under a certain thermal environment. It can also be used to analyze temperature and humidity changes in the surrounding environment of a human body. The user can consider age, clothes, and physiological phenomena of the human body such as heat transfer by blood flow in addition to the surrounding environment of a human body such as temperature and velocity.

LES

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LES is one of the turbulent flow models. It models eddies smaller than the mesh element in size and directly calculates other eddies. Although calculation load is large, LES enables simulations closer to real phenomena. LES is often used in noise analyses, significantly affected by time variation, to simulate the behavior of small eddies. The user can use the hybrid model with RANS, a turbulent model of small calculation load.

Radiation

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Heat transfer by infrared-ray radiation can be considered by setting emissivity and temperature difference between objects. The user can choose VF (view factor) method or FLUX method as a calculation method. The user can also consider wavelength dependence, transmission, absorption, refraction, diffusion, and reflection of radiation. In FLUX method, the user can also consider directionality.

Mapping

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When a target phenomenon is in a small range and the phenomenon is affected by a wide range of its surrounding area, analysis results of the surrounding area can be used for an analysis of the target phenomenon as boundary conditions to decrease the calculation load.

Fan model (rotating blades)

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With this model, an average flow field around rotating blades can be simulated only by entering characteristic properties regardless of real shapes of fans or propellers. The user can use the non-dimensional swirl coefficient model, the simplified propeller model, and the simplified rotor model. This model is useful to analyze axial-flow windmills and waterwheels.

Coupled analysis with GT-SUITE

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Coupled analysis with GT-SUITE is available. The entire flow in an intake and exhaust system is calculated with GT-SUITE and small flows of each part are interpolated with scFLOW or SC/Tetra. This will enhance calculation accuracy of the whole system.

SmartBlades

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This function is useful for analyzing the shape of a fan automatically throughout creating the shape of a fan (CAD data), calculating the flow, and post-processing. The shape of a fan can be created easily by specifying parameters including the number of blades, fan diameter, rake angle, and skew angle.

Functions for turbomachinery

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The amount of dew condensation on an object surface can be calculated from the surface temperature and water vapor in the air. You can output the amount of dew condensation per unit time in a steady-state analysis and the accumulated dew condensation in a transient analysis. Evaporation from a surface where dew condensation occurs can be calculated simultaneously, and this is useful for an analysis of a windshield defroster.

FluidBearingDesigner

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The function creates groove patterns of fluid bearings (dynamic-pressure bearing) and generates mesh. You can select the shape of grooves such as journal and thrust and materials such as porous material. From calculation results, you can obtain parameters for designing fluid bearings such as axial force and drag coefficient.

For Inquiry

+66 (0) 76-670-195
+66 (0) 63-650-2456
Head Office: 16 Senarat rd. Takuap sub-dist., Takuapa dist., Phang-Nga Thailand 82110
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Bangkok Office: 1178 Phahonyothin rd, Khwaeng Chom Phon, Khet Chatuchak, Bangkok Thailand 10900

Monday-Friday:  8:30  - 17:30 
Saturday-Sunday: Closed

Cradle Consulting Thailand
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Contact Us

Head Office: 16 Senarat rd. Takuapa sub-dist., Takuapa dist., Phang-Nga Thailand 82110
Phone:  +66 (0) 76 - 670 - 195
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Bangkok Office: 1178 Phahonyothin rd, Khwaeng Chom Phon, Khet Chatuchak, Bangkok Thailand 10900
Phone: +66 (0) 63 - 650 - 2456
Email: [email protected]