In addition to solving basic fluid flow and heat transfer problems, SC/Tetra is equipped with many physical models capable of simulating a wide variety of industrial applications.
ALE (Moving and/or Rotating Boundaries) / Overset mesh / Dynamic ALE
SC/Tetra is equipped with ALE (moving and/or rotating boundaries) which enables simulating airflow caused by a moving object. This can include rotating fan blades or cars passing by one another.
SC/Tetra Version 7 is also equipped with an overset mesh function which allows different sets of meshes to overlap. This enables an object to move freely without having to generate and eliminate mesh which is usually a very complicated process.
In addition, the dynamic ALE function enables an object to translate or rotate in response to a force caused by surrounding airflow.
Free surface analysis (VOF method)
The free surface analysis is a method used to capture the boundary geometry between gas and liquid. This method is useful for analyzing liquid surfaces exposed to the air or air bubbles in the liquid. The free surface function can be used in conjunction with other functions. The free surface VOF method and overset mesh function have been combined to enable simulation of a solid object breaking the surface of a liquid. This can include simulation of an object dropping into a liquid, or blades of a paddle moving through water.
Human Body Thermoregulatory Model (JOS)
The JOS Thermoregulatory Model was developed by Professor Tanabe at Waseda University. JOS calculates the human body skin surface temperature by considering energy transportation using a detailed vascular system model and physiological characterization of the human body. At the same time, JOS also considers heat and moisture generated from the human body and reflected to the surrounding environment. JOS accounts for change in metabolic rate (e.g. from an active state to a resting state) such as a person getting into a car. JOS will calculate the change in body temperature over time.
Electric Current (Joule Heating) Analysis
Joule heat generated by an electric potential can be predicted and used as the boundary condition for an electrical heating wire. By specifying the electric potential at each end of the wire, electric current density, and electrical conductivity, the electric potential field and heat flux at an location can be predicted.
The full cavitation model in SC/Tetra accounts for (a) the formation and transport of vapor bubbles, (b) the turbulent fluctuations of pressure and velocity, and (c) the magnitude of noncondensible gases, which are dissolved or ingested in the operating liquid.
SC/Tetra is equipped with the following three acoustic analytical functions:
1) Decomposition of a flow and associated acoustic fields and use of the acousticanalogy method for noise prediction at a far field observing point away from the noise source,
2) Weak compressible flow model for resonant sound, and
3) Sound source detection method for detecting a sound source.
Aeroacoustic Analysis is usually calculated using LES (Large Eddy Simulation). However, sound source detection analysis can be calculated using the k-Îµ turbulence model and steady state analysis.