Showing result: 1 - 10 of 142
Chemical Engineering & CFD
-
Fluid-Structure Interaction
This is a model exemplifying how fluid-structure interactions can be modeled using COMSOL Multiphysics. Viscous forces and the system’s pressure impose forces to the surface of a structure. The deformation in the soft structure is not small and the fluid regime will therefore dynamically change. T...
Read more about this model -
Cooling and Solidification
In this model, continuous casting processing of a metal rod from melted to solid state is modeled.
The model describes the fluid and solid flow and heat transport, including the phase transfer from melt to solid. This phase change causes momentum changes, latent heat release and a variation in ph...
Read more about this model -
Blood Vessel
This model refers to a portion of the vascular system of a young child - the upper part of the aorta artery. The blood vessels are embedded in a biological tissue (the cardiac muscle) and, during the flow of blood, pressure is applied to the internal surfaces producing deformation of the vessel wall...
Read more about this model -
Filling of a Capillary Channel
This example studies a narrow vertical cylinder placed on top of a reservoir filled with water. Because of wall adhesion and surface tension at the air/water interface, water rises through the channel.
Surface tension and wall adhesive forces are often used to transport fluid through microchannel...
Read more about this model -
Droplet Breakup in a T-junction
Emulsions consist of small liquid droplets immersed in an immiscible liquid and widely occur in the production of food, cosmetics, fine chemicals, and pharmaceutical products. The quality of the product is typically dependent on the size of the droplets. Simulating these processes can help in optimi...
Read more about this model -
Shell-and-Tube Heat Exchanger
In this model, you will study a part of a shell-and-tube heat exchanger, where hot water enters from above. The cooling medium flows through the tubes that, in this model, impose a constant temperature at the walls. Furthermore, the tubes are assumed to be made of stainless steel and the heat flux i...
Read more about this model -
Boiling Flow
When modeling boiling flows, the mass transfer across the phase boundary, as well as the absorption of latent heat as the liquid evaporates, needs to be accounted for.
Here, a liquid is initially at rest above a thin layer of vapor, where the temperature in both phases is that of the saturation t...
Read more about this model -
Rising Bubble
The level set method is well suited for problems with moving boundaries in which the geometry’s topology changes with time. A bubble of oil that travels up through water and finally merges with oil at the top causes this kind of topology change. For problems where the topology is unchanged as a fu...
Read more about this model -
Chemical Vapor Deposition of GaAs
Chemical vapor deposition (CVD) allows a thin film to be grown on a substrate through molecules and molecular fragments adsorbing and reacting on a surface.
This example illustrates the modeling of such a CVD reactor where triethyl-gallium first decomposes, and the reaction products along with a...
Read more about this model -
FSI in a Peristaltic Pump
In a peristaltic pump, rotating rollers squeeze a flexible tube. As the rollers move along the tube, the fluid in the tube follows the motion. The main advantage of the peristaltic pump is that no seals, valves or other internal parts ever touch the fluid. Due to their cleanliness, peristaltic pumps...
Read more about this model