Simulation of the strength of metallic alloys, a critical step in some industrial processes, requires reliable data on their thermophysical properties such as surface tension and viscosity. The researchers Suggestion Comparing predictive models with experimental results as a method to evaluate these data.
Scientists use surface tension and viscosity data of titanium-based alloys in industrial processes such as casting and crystal growth. Non-Equilibrium Solidification, Modeling for Microstructure Engineering of Industrial Compositesan ESA (European Space Agency) investigation examined the microstructure and growth of these alloys using the station’s electromagnetic levitator. This facility eliminates the need for containers, which can interfere with experimental results.
A review of techniques for measuring thermal diffusion
The researchers present A technique for measuring the thermal diffusivity of molecules in a mixture. Thermal diffusion is measured using the Soret coefficient – the ratio of overall movement within a system due to temperature differences. It has applications in mineralogy and geophysics such as predicting the location of natural resources below the Earth’s surface.
A series of ESA probes studied diffusion, or how heat and particles move through fluids in microgravity. Selectable Optical Diagnostic Instrument – Effect of Vibration on Dispersion of Liquids examined how vibration affects dispersion in mixtures with two components. SODI-DCMIX More complex dispersion measurements in mixtures of three or more components. Understanding and predicting the effects of thermal diffusion is used in various industries such as modeling of underground oil reservoirs.
Research validates ferrofluid technology.
The researchers Confirmed Concept of using ferrofluid technology to operate thermal control switches in spacecraft. This result could support the development of more reliable and durable spacecraft thermal management systems, extending mission lifetimes and improving crew safety.
Überflieger 2: Ferrofluid application research is conducted. analyzed the performance of ferrofluids, a technology that uses magnetic fields to replace components such as rotors and switches with magnetized fluids and mechanical systems, which are prone to wear and tear. This technology can reduce material costs for thermal management systems, reduce the need for maintenance and repair, and help avoid equipment failure. The paper discusses possible improvements to the thermal switch, including optimizing the geometry to better manage heat flow.